Disorder-Driven Transition from s± to s++ Superconducting Order Parameter in Proton Irradiated Ba(Fe1-xRhx)2As2 Single Crystals

doi:https://doi.org/10.1103/PhysRevLett.121.107001

Title: Disorder-Driven Transition from $s_{\pm}$ to $s_{+ +}$ Superconducting Order Parameter in Proton Irradiated $Ba ({Fe}_{1 - x} {Rh}_{x})_{2} {As}_{2}$ Single Crystals

Abstract

Here, microwave measurements of the London penetration depth and critical temperature T _c were used to show evidence of a disordered-driven transition from s _± to s ₊₊ order parameter symmetry in optimally doped Ba(Fe _1–xRh _x) ₂As ₂ single crystals, where disorder was induced by means of 3.5 MeV proton irradiation. Signatures of such a transition, as theoretically predicted, are found as a drop in the low-temperature values of the London penetration depth and a virtually disorder-independent superconducting T _c. We show how these experimental observations can be described by multiband Eliashberg calculations in which the effect of disorder is accounted for in a suitable way. To this aim, an effective two-band approach is adopted, allowing us to treat disorder in a range between the Born approximation and the unitary limit.

Authors:

Ghigo, Gianluca ^[1]; Torsello, D. ^[1]; Ummarino, G. A. ^[2]; Gozzelino, L. ^[1]; Tanatar, M. A. ^[3]; Prozorov, R. ^[3]; Canfield, P. C. ^[3]

Politecnico di Torino, Torino (Italy); Istituto Nazionale di Fisica Nucleare, Torino (Italy)
Politecnico di Torino, Torino (Italy); National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Moskva (Russia)
Ames Lab. and Iowa State Univ., Ames, IA (United States)

Publication Date:: 2018-09-04

Research Org.:: Ames Lab., Ames, IA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1471223

Alternate Identifier(s):: OSTI ID: 1468839

Report Number(s):: IS-J-9753
Journal ID: ISSN 0031-9007; PRLTAO

Grant/Contract Number:: AC02-07CH11358

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Volume: 121; Journal Issue: 10; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Ghigo, Gianluca, Torsello, D., Ummarino, G. A., Gozzelino, L., Tanatar, M. A., Prozorov, R., and Canfield, P. C. Disorder-Driven Transition from s± to s++ Superconducting Order Parameter in Proton Irradiated Ba(Fe1-xRhx)2As2 Single Crystals.  United States: N. p., 2018. 
        Web.  doi:10.1103/PhysRevLett.121.107001.

Copy to clipboard


                    Ghigo, Gianluca, Torsello, D., Ummarino, G. A., Gozzelino, L., Tanatar, M. A., Prozorov, R., & Canfield, P. C. Disorder-Driven Transition from s± to s++ Superconducting Order Parameter in Proton Irradiated Ba(Fe1-xRhx)2As2 Single Crystals.  United States.  https://doi.org/10.1103/PhysRevLett.121.107001

Copy to clipboard


                    Ghigo, Gianluca, Torsello, D., Ummarino, G. A., Gozzelino, L., Tanatar, M. A., Prozorov, R., and Canfield, P. C. Tue .  
        "Disorder-Driven Transition from s± to s++ Superconducting Order Parameter in Proton Irradiated Ba(Fe1-xRhx)2As2 Single Crystals".  United States.  https://doi.org/10.1103/PhysRevLett.121.107001.  https://www.osti.gov/servlets/purl/1471223.

Copy to clipboard


                    
@article{osti_1471223,

  title        = {Disorder-Driven Transition from s± to s++ Superconducting Order Parameter in Proton Irradiated Ba(Fe1-xRhx)2As2 Single Crystals},

  author       = {Ghigo, Gianluca and Torsello, D. and Ummarino, G. A. and Gozzelino, L. and Tanatar, M. A. and Prozorov, R. and Canfield, P. C.},

  abstractNote = {Here, microwave measurements of the London penetration depth and critical temperature Tc were used to show evidence of a disordered-driven transition from s± to s++ order parameter symmetry in optimally doped Ba(Fe1–xRhx)2As2 single crystals, where disorder was induced by means of 3.5 MeV proton irradiation. Signatures of such a transition, as theoretically predicted, are found as a drop in the low-temperature values of the London penetration depth and a virtually disorder-independent superconducting Tc. We show how these experimental observations can be described by multiband Eliashberg calculations in which the effect of disorder is accounted for in a suitable way. To this aim, an effective two-band approach is adopted, allowing us to treat disorder in a range between the Born approximation and the unitary limit.},

  doi          = {10.1103/PhysRevLett.121.107001},

  url          = {https://www.osti.gov/biblio/1471223},
  journal      = {Physical Review Letters},

  issn         = {0031-9007},

  number       = 10,

  volume       = 121,

  place        = {United States},

  year         = {2018},

  month        = {9}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1103/PhysRevLett.121.107001

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 3 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Enhancement of superconducting transition temperature by pointlike disorder and anisotropic energy gap in FeSe single crystals
journal, August 2016

Teknowijoyo, S.; Cho, K.; Tanatar, M. A.
Physical Review B, Vol. 94, Issue 6
https://doi.org/10.1103/PhysRevB.94.064521

Disorder-induced transition between $s_{\pm}$ and $s_{+ +}$ states in two-band superconductors
journal, November 2011

Efremov, D. V.; Korshunov, M. M.; Dolgov, O. V.
Physical Review B, Vol. 84, Issue 18
https://doi.org/10.1103/PhysRevB.84.180512

Impurities in multiband superconductors
journal, December 2016

Korshunov, M. M.; Togushova, Yu N.; Dolgov, O. V.
Physics-Uspekhi, Vol. 59, Issue 12
https://doi.org/10.3367/UFNe.2016.07.037863

Field-induced coexistence of $s_{+ +}$ and $s_{\pm}$ superconducting states in dirty multiband superconductors
journal, February 2018

Garaud, Julien; Corticelli, Alberto; Silaev, Mihail
Physical Review B, Vol. 97, Issue 5
https://doi.org/10.1103/PhysRevB.97.054520

Universal doping evolution of the superconducting gap anisotropy in single crystals of electron-doped Ba(Fe _{1− x} Rh _x ) ₂ As ₂ from London penetration depth measurements
journal, May 2018

Kim, Hyunsoo; Tanatar, M. A.; Martin, C.
Journal of Physics: Condensed Matter, Vol. 30, Issue 22
https://doi.org/10.1088/1361-648X/aabef9

Tuning the response of YBCO microwave resonators by heavy-ion patterned micro-channels
journal, September 2012

Ghigo, G.; Laviano, F.; Gerbaldo, R.
Superconductor Science and Technology, Vol. 25, Issue 11
https://doi.org/10.1088/0953-2048/25/11/115007

Particle and Heavy Ion Transport code System, PHITS, version 2.52
journal, September 2013

Sato, Tatsuhiko; Niita, Koji; Matsuda, Norihiro
Journal of Nuclear Science and Technology, Vol. 50, Issue 9
https://doi.org/10.1080/00223131.2013.814553

Unconventional Superconductivity with a Sign Reversal in the Order Parameter of ${LaFeAsO}_{1 - x} F_{x}$
journal, July 2008

Mazin, I. I.; Singh, D. J.; Johannes, M. D.
Physical Review Letters, Vol. 101, Issue 5
https://doi.org/10.1103/PhysRevLett.101.057003

Penetration depth of ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ single crystals explained within a multiband Eliashberg $s \pm$ approach
journal, July 2017

Ghigo, G.; Ummarino, G. A.; Gozzelino, L.
Physical Review B, Vol. 96, Issue 1
https://doi.org/10.1103/PhysRevB.96.014501

Effects of Co substitution on thermodynamic and transport properties and anisotropic $H_{c 2}$ in $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ single crystals
journal, December 2008

Ni, N.; Tillman, M. E.; Yan, J. -Q.
Physical Review B, Vol. 78, Issue 21
https://doi.org/10.1103/PhysRevB.78.214515

Phenomenological model of the microwave surface impedance of high- T _c superconducting films
journal, June 2000

Vendik, I.
Superconductor Science and Technology, Vol. 13, Issue 7
https://doi.org/10.1088/0953-2048/13/7/312

Magnetism, superconductivity, and pairing symmetry in iron-based superconductors
journal, October 2008

Chubukov, A. V.; Efremov, D. V.; Eremin, I.
Physical Review B, Vol. 78, Issue 13
https://doi.org/10.1103/PhysRevB.78.134512

Pairing symmetry and pairing state in ferropnictides: Theoretical overview
journal, May 2009

Mazin, I. I.; Schmalian, J.
Physica C: Superconductivity, Vol. 469, Issue 9-12
https://doi.org/10.1016/j.physc.2009.03.019

Effects of heavy-ion irradiation on the microwave surface impedance of (Ba _{1− x} K _x )Fe ₂ As ₂ single crystals
journal, February 2018

Ghigo, G.; Torsello, D.; Gerbaldo, R.
Superconductor Science and Technology, Vol. 31, Issue 3
https://doi.org/10.1088/1361-6668/aaa858

Unconventional Disorder Effects in Correlated Superconductors
journal, December 2016

Gastiasoro, Maria N.; Bernardini, Fabio; Andersen, Brian M.
Physical Review Letters, Vol. 117, Issue 25
https://doi.org/10.1103/PhysRevLett.117.257002

Precision measurements of the temperature dependence of λ in ${YBa}_{2}$ ${Cu}_{3}$ $O_{6.95}$ : Strong evidence for nodes in the gap function
journal, June 1993

Hardy, W. N.; Bonn, D. A.; Morgan, D. C.
Physical Review Letters, Vol. 70, Issue 25
https://doi.org/10.1103/PhysRevLett.70.3999

Tracing the $s_{\pm}$ symmetry in iron pnictides by controlled disorder
journal, May 2016

Schilling, M. B.; Baumgartner, A.; Gorshunov, B.
Physical Review B, Vol. 93, Issue 17
https://doi.org/10.1103/PhysRevB.93.174515

Effects of magnetism and doping on the electron-phonon coupling in ${BaFe}_{2} {As}_{2}$
journal, July 2010

Boeri, L.; Calandra, M.; Mazin, I. I.
Physical Review B, Vol. 82, Issue 2
https://doi.org/10.1103/PhysRevB.82.020506

Using controlled disorder to distinguish $s_{\pm}$ and $s_{+}_{+}$ gap structure in Fe-based superconductors
journal, March 2013

Wang, Y.; Kreisel, A.; Hirschfeld, P. J.
Physical Review B, Vol. 87, Issue 9
https://doi.org/10.1103/PhysRevB.87.094504

Phase-Sensitive Evidence for the Sign-Reversal $s_{\pm}$ Symmetry of the Order Parameter in an Iron-Pnictide Superconductor Using $Nb / {Ba}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ Josephson Junctions
journal, February 2018

Kalenyuk, A. A.; Pagliero, A.; Borodianskyi, E. A.
Physical Review Letters, Vol. 120, Issue 6
https://doi.org/10.1103/PhysRevLett.120.067001

Phase diagrams of $Ba {({Fe}_{1 - x} M_{x})}_{2} {As}_{2}$ single crystals ( $M = Rh$ and Pd)
journal, July 2009

Ni, N.; Thaler, A.; Kracher, A.
Physical Review B, Vol. 80, Issue 2
https://doi.org/10.1103/PhysRevB.80.024511

Effects of disorder induced by heavy-ion irradiation on (Ba1−x K x )Fe2As2 single crystals, within the three-band Eliashberg s± wave model
journal, October 2017

Ghigo, G.; Ummarino, G. A.; Gozzelino, L.
Scientific Reports, Vol. 7, Issue 1
https://doi.org/10.1038/s41598-017-13303-5

SRIM – The stopping and range of ions in matter (2010)
journal, June 2010

Ziegler, James F.; Ziegler, M. D.; Biersack, J. P.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 11-12
https://doi.org/10.1016/j.nimb.2010.02.091

High-temperature superconductivity in iron-based materials
journal, August 2010

Paglione, Johnpierre; Greene, Richard L.
Nature Physics, Vol. 6, Issue 9
https://doi.org/10.1038/nphys1759

Systematics of the temperature-dependent interplane resistivity in Ba(Fe $_{1 - x} M_{x}$ ) $_{2}$ As $_{2}$ ( $M = Co$ , Rh, Ni, and Pd)
journal, July 2011

Tanatar, M. A.; Ni, N.; Thaler, A.
Physical Review B, Vol. 84, Issue 1
https://doi.org/10.1103/PhysRevB.84.014519

Three-band $s \pm$ Eliashberg theory and the superconducting gaps of iron pnictides
journal, November 2009

Ummarino, G. A.; Tortello, M.; Daghero, D.
Physical Review B, Vol. 80, Issue 17
https://doi.org/10.1103/PhysRevB.80.172503

Disorder-induced topological change of the superconducting gap structure in iron pnictides
journal, November 2014

Mizukami, Y.; Konczykowski, M.; Kawamoto, Y.
Nature Communications, Vol. 5, Issue 1
https://doi.org/10.1038/ncomms6657

Multiband $s \pm$ Eliashberg theory and temperature-dependent spin-resonance energy in iron pnictide superconductors
journal, March 2011

Ummarino, G. A.
Physical Review B, Vol. 83, Issue 9
https://doi.org/10.1103/PhysRevB.83.092508

Details of the disorder-induced transition between s _± and s ₊₊ states in the two-band model for Fe-based superconductors
journal, January 2018

Shestakov, V. A.; Korshunov, M. M.; Togushova, Yu N.
Superconductor Science and Technology, Vol. 31, Issue 3
https://doi.org/10.1088/1361-6668/aaa501

Effect of proton irradiation on the normal-state low-energy excitations of $Ba {({Fe}_{1 - x} {Rh}_{x})}_{2} {As}_{2}$ superconductors
journal, September 2017

Moroni, M.; Gozzelino, L.; Ghigo, G.
Physical Review B, Vol. 96, Issue 9
https://doi.org/10.1103/PhysRevB.96.094523

Penetration Depth and Quasiparticle Conductivity of Co- and K-Doped BaFe ₂ As ₂ Crystals, Investigated by a Microwave Coplanar Resonator Technique
journal, April 2016

Ghigo, Gianluca; Gerbaldo, Roberto; Gozzelino, Laura
IEEE Transactions on Applied Superconductivity, Vol. 26, Issue 3
https://doi.org/10.1109/TASC.2016.2529419

Meissner-London state in superconductors of rectangular cross section in a perpendicular magnetic field
journal, July 2000

Prozorov, R.; Giannetta, R. W.; Carrington, A.
Physical Review B, Vol. 62, Issue 1
https://doi.org/10.1103/PhysRevB.62.115

Normal-state spin dynamics and temperature-dependent spin-resonance energy in optimally doped BaFe1.85Co0.15As2
journal, December 2009

Inosov, D. S.; Park, J. T.; Bourges, P.
Nature Physics, Vol. 6, Issue 3
https://doi.org/10.1038/nphys1483

Gap symmetry and structure of Fe-based superconductors
journal, October 2011

Hirschfeld, P. J.; Korshunov, M. M.; Mazin, I. I.
Reports on Progress in Physics, Vol. 74, Issue 12
https://doi.org/10.1088/0034-4885/74/12/124508

Multiband model for penetration depth in ${MgB}_{2}$
journal, August 2002

Golubov, A. A.; Brinkman, A.; Dolgov, O. V.
Physical Review B, Vol. 66, Issue 5
https://doi.org/10.1103/PhysRevB.66.054524

Works referencing / citing this record:

Electrodynamic response of Ba(Fe1−xRhx)2As2 across the s± to s++ order parameter transition
journal, July 2019

Torsello, Daniele; Gerbaldo, Roberto; Gozzelino, Laura
The European Physical Journal Special Topics, Vol. 228, Issue 3
https://doi.org/10.1140/epjst/e2019-800144-1

Electrodynamic response of Ba(Fe1−xRhx)2As2 across the s± to s++ order parameter transition
journal, July 2019

Torsello, Daniele; Gerbaldo, Roberto; Gozzelino, Laura
The European Physical Journal Special Topics, Vol. 228, Issue 3
https://doi.org/10.1140/epjst/e2019-800144-1

Eliashberg Analysis of the Electrodynamic Response of Ba(Fe1−xRhx)2As2 Across the s± to s++ Order Parameter Transition
journal, December 2019

Torsello, Daniele; Ummarino, Giovanni Alberto; Gerbaldo, Roberto
Journal of Superconductivity and Novel Magnetism
https://doi.org/10.1007/s10948-019-05368-2

Analysis of the London penetration depth in Ni-doped ${CaKFe}_{4} {As}_{4}$
journal, September 2019

Torsello, D.; Cho, K.; Joshi, K. R.
Physical Review B, Vol. 100, Issue 9
https://doi.org/10.1103/physrevb.100.094513

Comprehensive Eliashberg analysis of microwave conductivity and penetration depth of K-, Co-, and P-substituted ${BaFe}_{2} {As}_{2}$
journal, April 2019

Torsello, D.; Ummarino, G. A.; Gozzelino, L.
Physical Review B, Vol. 99, Issue 13
https://doi.org/10.1103/physrevb.99.134518

Microwave analysis of the interplay between magnetism and superconductivity in ${EuFe}_{2} {({As}_{1 - x} P_{x})}_{2}$ single crystals
journal, November 2019

Ghigo, G.; Torsello, D.; Gozzelino, L.
Physical Review Research, Vol. 1, Issue 3
https://doi.org/10.1103/physrevresearch.1.033110

Similar records in OSTI.GOV collections:

Effect of Electron Irradiation on Superconductivity in Single Crystals of $Ba ({Fe}_{1 - x} {Ru}_{x})_{2} {As}_{2}$ ( $x = 0.24$ )

Journal Article Prozorov, R. ; Kończykowski, M. ; Tanatar, M. A. ; ... - Physical Review. X

A single crystal of isovalently substituted Ba(Fe _1-xRu _x) ₂As ₂ (x=0.24) is sequentially irradiated with 2.5 MeV electrons up to a maximum dose of 2.1×10 ¹⁹ e ^-/cm ². The electrical resistivity is measured in situ at T=22 K during the irradiation and ex situ as a function of temperature between subsequent irradiation runs. Upon irradiation, the superconducting transition temperature T _c decreases and the residual resistivity ρ0 increases. We find that electron irradiation leads to the fastest suppression of T _c compared to other types of artificially introduced disorder, probably due to the strong short-range potential of themore »« less
Cited by 27
https://doi.org/10.1103/PhysRevX.4.041032
Effect of heavy-ion irradiation on London penetration depth in overdoped Ba(Fe $_{1 - x}$ Co $_{x}$ ) $_{2}$ As $_{2}$

Journal Article Murphy, J. ; Tanatar, M. A. ; Kim, Hyunsoo ; ... - Physical Review. B, Condensed Matter and Materials Physics

Irradiation with 1.4 GeV ²⁰⁸ Pb ions was used to induce artificial disorder in single crystals of iron-arsenide superconductor Ba(Fe _{1 - x} Co _x ) ₂ As ₂ and to study its effects on the temperature-dependent London penetration depth and transport properties. A study was undertaken on overdoped single crystals with x = 0.108 and x = 0.127 characterized by notable modulation of the superconducting gap. Irradiation corresponding to the matching fields of B _Φ = 6 T and 6.5 T with doses 2.22 × 10 ¹¹ d /cm ² and 2.4 × 10 ¹¹ d /cm 2 ,more »« less
https://doi.org/10.1103/PhysRevB.88.054514
Structural and Magnetic Phase Transitions near Optimal Superconductivity in ${{BaFe}_{2} ({As}_{1 - x} P_{x})}_{2}$

Journal Article Hu, Ding ; Lu, Xingye ; Zhang, Wenliang ; ... - Physical Review Letters

We use nuclear magnetic resonance (NMR), high-resolution x-ray, and neutron scattering studies to study structural and magnetic phase transitions in phosphorus-doped BaFe2(As1-xPx)(2). Previous transport, NMR, specific heat, and magnetic penetration depth measurements have provided compelling evidence for the presence of a quantum critical point (QCP) near optimal superconductivity at x = 0.3. However, we show that the tetragonal-to-orthorhombic structural (T-s) and paramagnetic to antiferromagnetic (AF, T-N) transitions in BaFe2(As1-xPx)(2) are always coupled and approach T-N approximate to T-s >= T-c (approximate to 29 K) for x = 0.29 before vanishing abruptly for x >= 0.3. These results suggest that AFmore »« less
https://doi.org/10.1103/PhysRevLett.114.157002
Unconventional Charge Density Wave Order in the Pnictide Superconductor $Ba ({Ni}_{1 - x} {Co}_{x})_{2} {As}_{2}$

Journal Article Lee, Sangjun ; de la Peña, Gilberto ; Sun, Stella X. -L. ; ... - Physical Review Letters

Ba(Ni _1–xCo _x) ₂As ₂ is a structural homologue of the pnictide high temperature superconductor, Ba(Fe _1–xCo _x) ₂As ₂, in which the Fe atoms are replaced by Ni. Superconductivity is highly suppressed in this system, reaching a maximum T_c = 2.3 K, compared to 24 K in its iron-based cousin, and the origin of this T_c suppression is not known. Using x-ray scattering, we show that Ba(Ni _1–xCo _x) ₂As ₂ exhibits a unidirectional charge density wave (CDW) at its triclinic phase transition. The CDW is incommensurate, exhibits a sizable lattice distortion, and is accompanied by the appearance ofmore »« less
Cited by 1
https://doi.org/10.1103/physrevlett.122.147601

Full Text Available
Frustrated Magnetism in Mott Insulating $(V_{1 - x} {Cr}_{x})_{2} O_{3}$

Journal Article Leiner, J. C. ; Jeschke, H. O. ; Valentí, R. ; ... - Physical Review. X

V ₂O ₃ famously features all four combinations of paramagnetic versus antiferromagnetic and metallic versus insulating states of matter in response to percent-level doping, pressure in the GPa range, and temperature below 300 K. Using time-of-flight neutron spectroscopy combined with density functional theory calculations of magnetic interactions, we have mapped and analyzed the inelastic magnetic neutron scattering cross section over a wide range of energy and momentum transfer in the chromium-stabilized antiferromagnetic and paramagnetic insulating phases. Our results reveal an important magnetic frustration and degeneracy of the paramagnetic insulating phase which is relieved by the rhombohedral-to-monoclinic transition at T_N =more »« less
Cited by 3
https://doi.org/10.1103/PhysRevX.9.011035

Similar Records

Title: Disorder-Driven Transition from s ± to s + + Superconducting Order Parameter in Proton Irradiated Ba ( Fe 1 - x Rh x ) 2 As 2 Single Crystals

Abstract

Citation Formats

Enhancement of superconducting transition temperature by pointlike disorder and anisotropic energy gap in FeSe single crystals journal, August 2016

Disorder-induced transition between s ± and s + + states in two-band superconductors journal, November 2011

Impurities in multiband superconductors journal, December 2016

Field-induced coexistence of s + + and s ± superconducting states in dirty multiband superconductors journal, February 2018

Universal doping evolution of the superconducting gap anisotropy in single crystals of electron-doped Ba(Fe 1− x Rh x ) 2 As 2 from London penetration depth measurements journal, May 2018

Tuning the response of YBCO microwave resonators by heavy-ion patterned micro-channels journal, September 2012

Particle and Heavy Ion Transport code System, PHITS, version 2.52 journal, September 2013

Unconventional Superconductivity with a Sign Reversal in the Order Parameter of LaFeAsO 1 − x F x journal, July 2008

Penetration depth of Ba 1 − x K x Fe 2 As 2 single crystals explained within a multiband Eliashberg s ± approach journal, July 2017

Effects of Co substitution on thermodynamic and transport properties and anisotropic H c 2 in Ba ( Fe 1 − x Co x ) 2 As 2 single crystals journal, December 2008

Phenomenological model of the microwave surface impedance of high- T c superconducting films journal, June 2000

Magnetism, superconductivity, and pairing symmetry in iron-based superconductors journal, October 2008

Pairing symmetry and pairing state in ferropnictides: Theoretical overview journal, May 2009

Effects of heavy-ion irradiation on the microwave surface impedance of (Ba 1− x K x )Fe 2 As 2 single crystals journal, February 2018

Unconventional Disorder Effects in Correlated Superconductors journal, December 2016

Precision measurements of the temperature dependence of λ in YBa 2 Cu 3 O 6.95 : Strong evidence for nodes in the gap function journal, June 1993

Tracing the s ± symmetry in iron pnictides by controlled disorder journal, May 2016

Effects of magnetism and doping on the electron-phonon coupling in BaFe 2 As 2 journal, July 2010

Using controlled disorder to distinguish s ± and s + + gap structure in Fe-based superconductors journal, March 2013

Phase-Sensitive Evidence for the Sign-Reversal s ± Symmetry of the Order Parameter in an Iron-Pnictide Superconductor Using Nb / Ba 1 − x Na x Fe 2 As 2 Josephson Junctions journal, February 2018

Phase diagrams of Ba ( Fe 1 − x M x ) 2 As 2 single crystals ( M = Rh and Pd) journal, July 2009

Effects of disorder induced by heavy-ion irradiation on (Ba1−x K x )Fe2As2 single crystals, within the three-band Eliashberg s± wave model journal, October 2017

SRIM – The stopping and range of ions in matter (2010) journal, June 2010

High-temperature superconductivity in iron-based materials journal, August 2010

Systematics of the temperature-dependent interplane resistivity in Ba(Fe 1 − x M x ) 2 As 2 ( M = Co , Rh, Ni, and Pd) journal, July 2011

Three-band s ± Eliashberg theory and the superconducting gaps of iron pnictides journal, November 2009

Disorder-induced topological change of the superconducting gap structure in iron pnictides journal, November 2014

Multiband s ± Eliashberg theory and temperature-dependent spin-resonance energy in iron pnictide superconductors journal, March 2011

Details of the disorder-induced transition between s ± and s ++ states in the two-band model for Fe-based superconductors journal, January 2018

Effect of proton irradiation on the normal-state low-energy excitations of Ba ( Fe 1 − x Rh x ) 2 As 2 superconductors journal, September 2017

Penetration Depth and Quasiparticle Conductivity of Co- and K-Doped BaFe 2 As 2 Crystals, Investigated by a Microwave Coplanar Resonator Technique journal, April 2016

Meissner-London state in superconductors of rectangular cross section in a perpendicular magnetic field journal, July 2000

Normal-state spin dynamics and temperature-dependent spin-resonance energy in optimally doped BaFe1.85Co0.15As2 journal, December 2009

Gap symmetry and structure of Fe-based superconductors journal, October 2011

Multiband model for penetration depth in MgB 2 journal, August 2002

Electrodynamic response of Ba(Fe1−xRhx)2As2 across the s± to s++ order parameter transition journal, July 2019

Electrodynamic response of Ba(Fe1−xRhx)2As2 across the s± to s++ order parameter transition journal, July 2019

Eliashberg Analysis of the Electrodynamic Response of Ba(Fe1−xRhx)2As2 Across the s± to s++ Order Parameter Transition journal, December 2019

Analysis of the London penetration depth in Ni-doped CaKFe 4 As 4 journal, September 2019

Comprehensive Eliashberg analysis of microwave conductivity and penetration depth of K-, Co-, and P-substituted BaFe 2 As 2 journal, April 2019

Microwave analysis of the interplay between magnetism and superconductivity in EuFe 2 ( As 1 − x P x ) 2 single crystals journal, November 2019

Title: Disorder-Driven Transition from $s_{\pm}$ to $s_{+ +}$ Superconducting Order Parameter in Proton Irradiated $Ba ({Fe}_{1 - x} {Rh}_{x})_{2} {As}_{2}$ Single Crystals

Enhancement of superconducting transition temperature by pointlike disorder and anisotropic energy gap in FeSe single crystals
journal, August 2016

Disorder-induced transition between $s_{\pm}$ and $s_{+ +}$ states in two-band superconductors
journal, November 2011

Impurities in multiband superconductors
journal, December 2016

Field-induced coexistence of $s_{+ +}$ and $s_{\pm}$ superconducting states in dirty multiband superconductors
journal, February 2018

Universal doping evolution of the superconducting gap anisotropy in single crystals of electron-doped Ba(Fe _{1− x} Rh _x ) ₂ As ₂ from London penetration depth measurements
journal, May 2018

Tuning the response of YBCO microwave resonators by heavy-ion patterned micro-channels
journal, September 2012

Particle and Heavy Ion Transport code System, PHITS, version 2.52
journal, September 2013

Unconventional Superconductivity with a Sign Reversal in the Order Parameter of ${LaFeAsO}_{1 - x} F_{x}$
journal, July 2008

Penetration depth of ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ single crystals explained within a multiband Eliashberg $s \pm$ approach
journal, July 2017

Effects of Co substitution on thermodynamic and transport properties and anisotropic $H_{c 2}$ in $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ single crystals
journal, December 2008

Phenomenological model of the microwave surface impedance of high- T _c superconducting films
journal, June 2000

Magnetism, superconductivity, and pairing symmetry in iron-based superconductors
journal, October 2008

Pairing symmetry and pairing state in ferropnictides: Theoretical overview
journal, May 2009

Effects of heavy-ion irradiation on the microwave surface impedance of (Ba _{1− x} K _x )Fe ₂ As ₂ single crystals
journal, February 2018

Unconventional Disorder Effects in Correlated Superconductors
journal, December 2016

Precision measurements of the temperature dependence of λ in ${YBa}_{2}$ ${Cu}_{3}$ $O_{6.95}$ : Strong evidence for nodes in the gap function
journal, June 1993

Tracing the $s_{\pm}$ symmetry in iron pnictides by controlled disorder
journal, May 2016

Effects of magnetism and doping on the electron-phonon coupling in ${BaFe}_{2} {As}_{2}$
journal, July 2010

Using controlled disorder to distinguish $s_{\pm}$ and $s_{+}_{+}$ gap structure in Fe-based superconductors
journal, March 2013

Phase-Sensitive Evidence for the Sign-Reversal $s_{\pm}$ Symmetry of the Order Parameter in an Iron-Pnictide Superconductor Using $Nb / {Ba}_{1 - x} {Na}_{x} {Fe}_{2} {As}_{2}$ Josephson Junctions
journal, February 2018

Phase diagrams of $Ba {({Fe}_{1 - x} M_{x})}_{2} {As}_{2}$ single crystals ( $M = Rh$ and Pd)
journal, July 2009

Effects of disorder induced by heavy-ion irradiation on (Ba1−x K x )Fe2As2 single crystals, within the three-band Eliashberg s± wave model
journal, October 2017

SRIM – The stopping and range of ions in matter (2010)
journal, June 2010

High-temperature superconductivity in iron-based materials
journal, August 2010

Systematics of the temperature-dependent interplane resistivity in Ba(Fe $_{1 - x} M_{x}$ ) $_{2}$ As $_{2}$ ( $M = Co$ , Rh, Ni, and Pd)
journal, July 2011

Three-band $s \pm$ Eliashberg theory and the superconducting gaps of iron pnictides
journal, November 2009

Disorder-induced topological change of the superconducting gap structure in iron pnictides
journal, November 2014

Multiband $s \pm$ Eliashberg theory and temperature-dependent spin-resonance energy in iron pnictide superconductors
journal, March 2011

Details of the disorder-induced transition between s _± and s ₊₊ states in the two-band model for Fe-based superconductors
journal, January 2018

Effect of proton irradiation on the normal-state low-energy excitations of $Ba {({Fe}_{1 - x} {Rh}_{x})}_{2} {As}_{2}$ superconductors
journal, September 2017

Penetration Depth and Quasiparticle Conductivity of Co- and K-Doped BaFe ₂ As ₂ Crystals, Investigated by a Microwave Coplanar Resonator Technique
journal, April 2016

Meissner-London state in superconductors of rectangular cross section in a perpendicular magnetic field
journal, July 2000

Normal-state spin dynamics and temperature-dependent spin-resonance energy in optimally doped BaFe1.85Co0.15As2
journal, December 2009

Gap symmetry and structure of Fe-based superconductors
journal, October 2011

Multiband model for penetration depth in ${MgB}_{2}$
journal, August 2002

Electrodynamic response of Ba(Fe1−xRhx)2As2 across the s± to s++ order parameter transition
journal, July 2019

Electrodynamic response of Ba(Fe1−xRhx)2As2 across the s± to s++ order parameter transition
journal, July 2019

Eliashberg Analysis of the Electrodynamic Response of Ba(Fe1−xRhx)2As2 Across the s± to s++ Order Parameter Transition
journal, December 2019

Analysis of the London penetration depth in Ni-doped ${CaKFe}_{4} {As}_{4}$
journal, September 2019

Comprehensive Eliashberg analysis of microwave conductivity and penetration depth of K-, Co-, and P-substituted ${BaFe}_{2} {As}_{2}$
journal, April 2019

Microwave analysis of the interplay between magnetism and superconductivity in ${EuFe}_{2} {({As}_{1 - x} P_{x})}_{2}$ single crystals
journal, November 2019