Effects of proton irradiation on flux-pinning properties of underdoped Ba(Fe0.96Co0.04)2As2 pnictide superconductor

Salem-Sugui, S.; Moseley, D.; Stuard, S. J.; Alvarenga, A. D.; Sefat, A. S.; Cohen, L. F.; Ghivelder, L.

doi:10.1016/j.jallcom.2016.10.103

Title: Effects of proton irradiation on flux-pinning properties of underdoped Ba(Fe_0.96Co_0.04)₂As₂ pnictide superconductor

Abstract

We study the effect of proton irradiation on Ba(Fe_0.96Co_0.04)₂As₂ superconducting single crystals from combined magnetisation and magnetoresistivity measurements. The study allows the extraction of the values of the apparent pinning energy U₀ of the samples prior to and after irradiation, as well as comparison of the values of U₀ obtained from the flux-flow reversible region with those from the flux-creep irreversible region. Irradiation reduces T_c modestly, but significantly reduces U₀ in both regimes: the critical current density J_c is modified, most strikingly by the disappearance of the second magnetisation peak after irradiation. Analysis of the functional form of the pinning force and of the temperature dependence of J_c for zero field, indicates that proton irradiation in this case has not changed the pinning regime, but has introduced a high density of shallow point-like defects. Lastly, by considering a model that takes into account the effect of disorder on the irreversibility line, the data suggests that irradiation produced a considerable reduction in the average effective disorder overall, consistent with the changes observed in U₀ and J_c.

Authors:

Salem-Sugui, S. ^[1]; Moseley, D. ^[2]; Stuard, S. J. ^[1]; Alvarenga, A. D. ^[3]; Sefat, A. S. ^[4]; Cohen, L. F. ^[2];

^[1]

Univ. Federal do Rio de Janeiro, Rio de Janeiro (Brazil)
Imperial College, London (United Kingdom)
Instituto Nacional de Metrologia Qualidade e Tecnologia, Duque de Caxias (Brazil)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Publication Date:: Thu Oct 13 00:00:00 EDT 2016

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC)

OSTI Identifier:: 1339408

Alternate Identifier(s):: OSTI ID: 1397591

Grant/Contract Number:: AC05-00OR22725

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Alloys and Compounds

Additional Journal Information:: Journal Volume: 694; Journal Issue: C; Journal ID: ISSN 0925-8388

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; pnictides; proton irradiation; superconducting critical current; flux-pinning

Citation Formats


                    Salem-Sugui, S., Moseley, D., Stuard, S. J., Alvarenga, A. D., Sefat, A. S., Cohen, L. F., and Ghivelder, L. Effects of proton irradiation on flux-pinning properties of underdoped Ba(Fe0.96Co0.04)2As2 pnictide superconductor.  United States: N. p., 2016. 
Web.  doi:10.1016/j.jallcom.2016.10.103.

Copy to clipboard


                    Salem-Sugui, S., Moseley, D., Stuard, S. J., Alvarenga, A. D., Sefat, A. S., Cohen, L. F., & Ghivelder, L. Effects of proton irradiation on flux-pinning properties of underdoped Ba(Fe0.96Co0.04)2As2 pnictide superconductor.  United States.  https://doi.org/10.1016/j.jallcom.2016.10.103

Copy to clipboard


                    Salem-Sugui, S., Moseley, D., Stuard, S. J., Alvarenga, A. D., Sefat, A. S., Cohen, L. F., and Ghivelder, L. Thu .  
"Effects of proton irradiation on flux-pinning properties of underdoped Ba(Fe0.96Co0.04)2As2 pnictide superconductor".  United States.  https://doi.org/10.1016/j.jallcom.2016.10.103.  https://www.osti.gov/servlets/purl/1339408.

Copy to clipboard


                    
@article{osti_1339408,

  title        = {Effects of proton irradiation on flux-pinning properties of underdoped Ba(Fe0.96Co0.04)2As2 pnictide superconductor},

  author       = {Salem-Sugui, S. and Moseley, D. and Stuard, S. J. and Alvarenga, A. D. and Sefat, A. S. and Cohen, L. F. and Ghivelder, L.},

  abstractNote = {We study the effect of proton irradiation on Ba(Fe0.96Co0.04)2As2 superconducting single crystals from combined magnetisation and magnetoresistivity measurements. The study allows the extraction of the values of the apparent pinning energy U0 of the samples prior to and after irradiation, as well as comparison of the values of U0 obtained from the flux-flow reversible region with those from the flux-creep irreversible region. Irradiation reduces Tc modestly, but significantly reduces U0 in both regimes: the critical current density Jc is modified, most strikingly by the disappearance of the second magnetisation peak after irradiation. Analysis of the functional form of the pinning force and of the temperature dependence of Jc for zero field, indicates that proton irradiation in this case has not changed the pinning regime, but has introduced a high density of shallow point-like defects. Lastly, by considering a model that takes into account the effect of disorder on the irreversibility line, the data suggests that irradiation produced a considerable reduction in the average effective disorder overall, consistent with the changes observed in U0 and Jc.},

  doi          = {10.1016/j.jallcom.2016.10.103},

  journal      = {Journal of Alloys and Compounds},

  number       = C,

  volume       = 694,

  place        = {United States},

  year         = {Thu Oct 13 00:00:00 EDT 2016},

  month        = {Thu Oct 13 00:00:00 EDT 2016}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Accepted Manuscript (DOE)

Publisher's Version of Record

https://doi.org/10.1016/j.jallcom.2016.10.103

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 2 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Iron-Based Layered Superconductor La[O _1- _x F _x ]FeAs ( x = 0.05−0.12) with T _c = 26 K
journal, March 2008

Kamihara, Yoichi; Watanabe, Takumi; Hirano, Masahiro
Journal of the American Chemical Society, Vol. 130, Issue 11
DOI: 10.1021/ja800073m

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides
journal, October 2010

Johnston, David C.
Advances in Physics, Vol. 59, Issue 6
DOI: 10.1080/00018732.2010.513480

Quasiparticle Scattering Induced by Charge Doping of Iron-Pnictide Superconductors Probed by Collective Vortex Pinning
journal, December 2010

van der Beek, Cornelis J.; Konczykowski, Marcin; Kasahara, Shigeru
Physical Review Letters, Vol. 105, Issue 26
DOI: 10.1103/PhysRevLett.105.267002

Flux pinning in ${PrFeAsO}_{0.9}$ and ${NdFeAsO}_{0.9} F_{0.1}$ superconducting crystals
journal, May 2010

van der Beek, C. J.; Rizza, G.; Konczykowski, M.
Physical Review B, Vol. 81, Issue 17
DOI: 10.1103/PhysRevB.81.174517

Small anisotropy, weak thermal fluctuations, and high field superconductivity in Co-doped iron pnictide Ba(Fe1−xCox)2As2
journal, February 2009

Yamamoto, A.; Jaroszynski, J.; Tarantini, C.
Applied Physics Letters, Vol. 94, Issue 6
DOI: 10.1063/1.3081455

High-Tc superconducting materials for electric power applications
journal, November 2001

Larbalestier, David; Gurevich, Alex; Feldmann, D. Matthew
Nature, Vol. 414, Issue 6861
DOI: 10.1038/35104654

Flux-line pinning in ${Bi}_{2}$ ${Sr}_{2}$ ${Ca}_{1}$ ${Cu}_{2}$ $O_{x}$ crystals: Interplay of intrinsic 2D behavior and irradiation-induced columnar defects
journal, February 1992

Gerhäuser, W.; Ries, G.; Neumüller, H. W.
Physical Review Letters, Vol. 68, Issue 6
DOI: 10.1103/PhysRevLett.68.879

Effect of 5.3-GeV Pb-ion irradiation on irreversible magnetization in Y-Ba-Cu-O crystals
journal, October 1991

Konczykowski, M.; Rullier-Albenque, F.; Yacoby, E. R.
Physical Review B, Vol. 44, Issue 13
DOI: 10.1103/PhysRevB.44.7167

Anisotropic flux pinning in ${YBa}_{2} {Cu}_{3} O_{7 - δ}$ single crystals: The influence of defect size and density as determined from neutron irradiation
journal, May 1998

Sauerzopf, F. M.
Physical Review B, Vol. 57, Issue 17
DOI: 10.1103/PhysRevB.57.10959

Effects of particle irradiations on vortex states in iron-based superconductors
journal, July 2012

Tamegai, Tsuyoshi; Taen, Toshihiro; Yagyuda, Hidenori
Superconductor Science and Technology, Vol. 25, Issue 8
DOI: 10.1088/0953-2048/25/8/084008

Neutron irradiation of SmFeAsO _{1− x} F _x
journal, May 2009

Eisterer, M.; Weber, H. W.; Jiang, J.
Superconductor Science and Technology, Vol. 22, Issue 6
DOI: 10.1088/0953-2048/22/6/065015

Effects of disorder on the superconducting properties of BaFe _1.8 Co _0.2 As ₂ single crystals
journal, August 2009

Eisterer, M.; Zehetmayer, M.; Weber, H. W.
Superconductor Science and Technology, Vol. 22, Issue 9
DOI: 10.1088/0953-2048/22/9/095011

High, magnetic field independent critical currents in (Ba,K)Fe ₂ As ₂ crystals
journal, July 2012

Fang, L.; Jia, Y.; Chaparro, C.
Applied Physics Letters, Vol. 101, Issue 1
DOI: 10.1063/1.4731204

Vortex-glass phase transition and enhanced flux pinning in C ⁴⁺ -irradiated BaFe _1.9 Ni _0.1 As ₂ superconducting single crystals
journal, August 2013

Shahbazi, M.; Wang, X. L.; Ghorbani, S. R.
Superconductor Science and Technology, Vol. 26, Issue 9
DOI: 10.1088/0953-2048/26/9/095014

Critical current anisotropy in Nd-1111 single crystals and the influence of neutron irradiation
journal, March 2014

Eisterer, M.; Mishev, V.; Zehetmayer, M.
Superconductor Science and Technology, Vol. 27, Issue 4
DOI: 10.1088/0953-2048/27/4/044009

Pair-breaking effects induced by 3-MeV proton irradiation in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$
journal, December 2013

Taen, Toshihiro; Ohtake, Fumiaki; Akiyama, Hiroki
Physical Review B, Vol. 88, Issue 22
DOI: 10.1103/PhysRevB.88.224514

Vortex dynamics in proton irradiated Co-doped BaFe2As2
journal, November 2011

Taen, T.; Nakajima, Y.; Tamegai, T.
Physica C: Superconductivity and its Applications, Vol. 471, Issue 21-22
DOI: 10.1016/j.physc.2011.05.054

Magnetotransport of proton-irradiated ${BaFe}_{2} {As}_{2}$ and ${BaFe}_{1.985} {Co}_{0.015} {As}_{2}$ single crystals
journal, February 2015

Moseley, D. A.; Yates, K. A.; Peng, N.
Physical Review B, Vol. 91, Issue 5
DOI: 10.1103/PhysRevB.91.054512

Enhancement of critical current density and vortex activation energy in proton-irradiated Co-doped ${BaFe}_{2} {As}_{2}$
journal, September 2012

Taen, Toshihiro; Nakajima, Yasuyuki; Tamegai, Tsuyoshi
Physical Review B, Vol. 86, Issue 9
DOI: 10.1103/PhysRevB.86.094527

Observation of the Crossover from Two-Gap to Single-Gap Superconductivity through Specific Heat Measurements in Neutron-Irradiated ${MgB}_{2}$
journal, February 2006

Putti, M.; Affronte, M.; Ferdeghini, C.
Physical Review Letters, Vol. 96, Issue 7
DOI: 10.1103/PhysRevLett.96.077003

Superconductivity at 22 K in Co-Doped ${BaFe}_{2} {As}_{2}$ Crystals
journal, September 2008

Sefat, Athena S.; Jin, Rongying; McGuire, Michael A.
Physical Review Letters, Vol. 101, Issue 11
DOI: 10.1103/PhysRevLett.101.117004

Neutron scattering study of the interplay between structure and magnetism in $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$
journal, April 2009

Lester, C.; Chu, Jiun-Haw; Analytis, J. G.
Physical Review B, Vol. 79, Issue 14
DOI: 10.1103/PhysRevB.79.144523

Quantitative theory of transport in vortex matter of type-II superconductors in the presence of random pinning
journal, July 2007

Rosenstein, B.; Zhuravlev, V.
Physical Review B, Vol. 76, Issue 1
DOI: 10.1103/PhysRevB.76.014507

Suppression of the critical temperature of superconducting $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ by point defects from proton irradiation
journal, December 2010

Nakajima, Yasuyuki; Taen, Toshihiro; Tsuchiya, Yuji
Physical Review B, Vol. 82, Issue 22
DOI: 10.1103/PhysRevB.82.220504

Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe $_{0.925}$ Co $_{0.075}$ ) $_{2}$ As $_{2}$ single crystals
journal, January 2012

Haberkorn, N.; Maiorov, B.; Usov, I. O.
Physical Review B, Vol. 85, Issue 1
DOI: 10.1103/PhysRevB.85.014522

Unprecedented anisotropic metallic state in undoped iron arsenide BaFe2As2 revealed by optical spectroscopy
journal, July 2011

Nakajima, M.; Liang, T.; Ishida, S.
Proceedings of the National Academy of Sciences, Vol. 108, Issue 30
DOI: 10.1073/pnas.1100102108

Magnetization of High-Field Superconductors
journal, January 1964

Bean, Charles P.
Reviews of Modern Physics, Vol. 36, Issue 1
DOI: 10.1103/RevModPhys.36.31

Thermally assisted flux flow at small driving forces
journal, February 1989

Kes, P. H.; Aarts, J.; Berg, J. van den
Superconductor Science and Technology, Vol. 1, Issue 5
DOI: 10.1088/0953-2048/1/5/005

Flux pinning mechanisms in type II superconductors
journal, August 1974

Dew-Hughes, D.
Philosophical Magazine, Vol. 30, Issue 2
DOI: 10.1080/14786439808206556

Evidence for mean free path fluctuation induced pinning in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7}$ and ${YBa}_{2}$ ${Cu}_{4}$ $O_{8}$ films
journal, March 1994

Griessen, R.; van Dalen, A. J. J.
Physical Review Letters, Vol. 72, Issue 12
DOI: 10.1103/PhysRevLett.72.1910

Measurements of the superconducting fluctuations in optimally doped BaFe _{2− x} Ni _x As ₂ under high magnetic fields: probing the 3D-anisotropic Ginzburg–Landau approach
journal, May 2014

Rey, R. I.; Ramos-Álvarez, A.; Carballeira, C.
Superconductor Science and Technology, Vol. 27, Issue 7
DOI: 10.1088/0953-2048/27/7/075001

Works referencing / citing this record:

Enhanced upper critical field in Co-doped Ba122 superconductors by lattice defect tuning
journal, November 2019

Tokuta, Shinnosuke; Yamamoto, Akiyasu
APL Materials, Vol. 7, Issue 11
DOI: 10.1063/1.5098057

Radiation effects on iron-based superconductors
journal, December 2017

Eisterer, M.
Superconductor Science and Technology, Vol. 31, Issue 1
DOI: 10.1088/1361-6668/aa9882

Enhanced upper critical field in Co-doped Ba122 superconductors by lattice defect tuning
text, January 2019

Tokuta, Shinnosuke; Yamamoto, Akiyasu
arXiv
DOI: 10.48550/arxiv.1911.01080

Similar Records in DOE PAGES and OSTI.GOV collections:

Strong pinning and slow flux creep relaxation in Co-doped CaFe₂As₂ single crystals

Journal Article Haberkorn, N. ; Suárez, S. ; Bud'ko, S. L. ; ... - Solid State Communications

In this paper we report on measurements of critical current densities J_c and flux creep rates S of freestanding Ca(Fe_1–xCo_x)₂As₂ (x ≈ 0.033) single crystals with T_c ≈ 15.7 K by performing magnetization measurements. The magnetic field dependences of J_c at low temperature display features related to strong pinning. In addition, we find that the system displays small flux creep rates. The characteristic glassy exponent, μ, and the pinning energy, U₀, display exceptional high values for pristine crystals. We find that for magnetic fields between 0.3 T and 1 T, μ decreases from ≈ 2.8 to ≈ 2 and U₀more »« less
https://doi.org/10.1016/j.ssc.2020.113963

Full Text Available
J{sub c} and vortex pinning enhancements in Bi-, Tl-, and Hg-based cuprate superconductors via GeV proton irradiation

Conference Thompson, J R ; Univ. of Tennessee, Knoxville, TN ; Ossandon, J G ; ...

Randomly oriented columnar defects provide an efficient mechanism for stabilizing the magnetic flux and current density in a variety of high-{Tc} superconductors. Protons with 0.8 GeV energy cause heavy constituent nuclei (Hg, Tl, Pb, Bi,...) to fission and the resultant fragments generate isotropically distributed columnar tracks. The main results are a significant enhancement of the persistent current density J, a shift of the irreversibility line towards higher fields and temperatures, and a marked reduction in the rate of current decay with time. With increasing crystalline disorder, {Tc} decreases at the rate of {approximately} 0.1--1 K per 10{sup 16} proton/cm{sup 2}.more »« less
Full Text Available
Flux pinning by Y[sub 2]BaCuO[sub 5] precipitates and field- and temperature-driven pinning centers in melt-powder-melt-growth processed YBa[sub 2]Cu[sub 3]O[sub 7]

Journal Article Kung, P J ; Maley, M P ; McHenry, M E ; ... - Physical Review, B: Condensed Matter; (United States)

Magnetic hysteresis, flux pinning, and flux creep in melt-powder-melt-growth processed YBa[sub 2]Cu[sub 3]O[sub 7] (Y 1:2:3) containing nominal 0, 25, and 40 mol % concentration of Y[sub 2]BaCuO[sub 5] (Y 2:1:1) inclusions were investigated. The strong pinning due to 2:1:1-phase precipitates in these samples allows for characterization of the hysteretic response as a function of pinning-site concentration over a large portion of magnetic-field--temperature space. We have found the following: (i) The curves of effective pinning energy [ital U][sub eff] versus current density [ital J] reveal a diverging behavior of [ital U][sub eff]([ital J]) in the low-[ital J] regime. This supportsmore »« less
https://doi.org/10.1103/PhysRevB.48.13922
Pinning mechanisms in YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} single crystals

Journal Article Panetta, P D ; Ostenson, J E ; Finnemore, D K ; ... - Physical Review, B: Condensed Matter

Systematic studies of flux pinning in YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} single crystals have been undertaken in an attempt to isolate the mechanisms that may cause the so-called fishtail pinning effect, a rise in critical current density ({ital J}{sub {ital c}}) that occurs as the magnetic field ({ital H}) increases. Two different sources of point defect pinning, 200 MeV proton irradiation and oxygen annealing, are used to alter the system and to determine how each one changes the {ital J}{sub {ital c}} vs {ital H} curves. The fishtail pinning effect is extremely robust and survives both in magnitude and with amore »« less
https://doi.org/10.1103/PhysRevB.52.15570
Inverse magnetocaloric effect in Ce(Fe{sub 0.96}Ru{sub 0.04}){sub 2}: Effect of fast neutron irradiation

Journal Article Dube, V. ; Mishra, P. K. ; Prajapat, C. L. ; ... - AIP Conference Proceedings

We have shown the effect of fast neutron irradiation on the magnetic phase transition and magnetocaloric effect (MCE) in a doped Ce(Fe{sub 0.96}Ru{sub 0.04}){sub 2}, intermettalic. We show that this leads to suppression of MCE and a to a disordered ferromagnetic phase.
https://doi.org/10.1063/1.4791415

Similar Records

Title: Effects of proton irradiation on flux-pinning properties of underdoped Ba(Fe0.96Co0.04)2As2 pnictide superconductor

Abstract

Citation Formats

Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K journal, March 2008

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides journal, October 2010

Quasiparticle Scattering Induced by Charge Doping of Iron-Pnictide Superconductors Probed by Collective Vortex Pinning journal, December 2010

Flux pinning in PrFeAsO 0.9 and NdFeAsO 0.9 F 0.1 superconducting crystals journal, May 2010

Small anisotropy, weak thermal fluctuations, and high field superconductivity in Co-doped iron pnictide Ba(Fe1−xCox)2As2 journal, February 2009

High-Tc superconducting materials for electric power applications journal, November 2001

Flux-line pinning in Bi 2 Sr 2 Ca 1 Cu 2 O x crystals: Interplay of intrinsic 2D behavior and irradiation-induced columnar defects journal, February 1992

Effect of 5.3-GeV Pb-ion irradiation on irreversible magnetization in Y-Ba-Cu-O crystals journal, October 1991

Anisotropic flux pinning in YBa 2 Cu 3 O 7 − δ single crystals: The influence of defect size and density as determined from neutron irradiation journal, May 1998

Effects of particle irradiations on vortex states in iron-based superconductors journal, July 2012

Neutron irradiation of SmFeAsO 1− x F x journal, May 2009

Effects of disorder on the superconducting properties of BaFe 1.8 Co 0.2 As 2 single crystals journal, August 2009

High, magnetic field independent critical currents in (Ba,K)Fe 2 As 2 crystals journal, July 2012

Vortex-glass phase transition and enhanced flux pinning in C 4+ -irradiated BaFe 1.9 Ni 0.1 As 2 superconducting single crystals journal, August 2013

Critical current anisotropy in Nd-1111 single crystals and the influence of neutron irradiation journal, March 2014

Pair-breaking effects induced by 3-MeV proton irradiation in Ba 1 − x K x Fe 2 As 2 journal, December 2013

Vortex dynamics in proton irradiated Co-doped BaFe2As2 journal, November 2011

Magnetotransport of proton-irradiated BaFe 2 As 2 and BaFe 1.985 Co 0.015 As 2 single crystals journal, February 2015

Enhancement of critical current density and vortex activation energy in proton-irradiated Co-doped BaFe 2 As 2 journal, September 2012

Observation of the Crossover from Two-Gap to Single-Gap Superconductivity through Specific Heat Measurements in Neutron-Irradiated MgB 2 journal, February 2006

Superconductivity at 22 K in Co-Doped BaFe 2 As 2 Crystals journal, September 2008

Neutron scattering study of the interplay between structure and magnetism in Ba ( Fe 1 − x Co x ) 2 As 2 journal, April 2009

Quantitative theory of transport in vortex matter of type-II superconductors in the presence of random pinning journal, July 2007

Suppression of the critical temperature of superconducting Ba ( Fe 1 − x Co x ) 2 As 2 by point defects from proton irradiation journal, December 2010

Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe 0.925 Co 0.075 ) 2 As 2 single crystals journal, January 2012

Unprecedented anisotropic metallic state in undoped iron arsenide BaFe2As2 revealed by optical spectroscopy journal, July 2011

Magnetization of High-Field Superconductors journal, January 1964

Thermally assisted flux flow at small driving forces journal, February 1989

Flux pinning mechanisms in type II superconductors journal, August 1974

Evidence for mean free path fluctuation induced pinning in YBa 2 Cu 3 O 7 and YBa 2 Cu 4 O 8 films journal, March 1994

Measurements of the superconducting fluctuations in optimally doped BaFe 2− x Ni x As 2 under high magnetic fields: probing the 3D-anisotropic Ginzburg–Landau approach journal, May 2014

Enhanced upper critical field in Co-doped Ba122 superconductors by lattice defect tuning journal, November 2019

Radiation effects on iron-based superconductors journal, December 2017

Enhanced upper critical field in Co-doped Ba122 superconductors by lattice defect tuning text, January 2019

Title: Effects of proton irradiation on flux-pinning properties of underdoped Ba(Fe_0.96Co_0.04)₂As₂ pnictide superconductor

Iron-Based Layered Superconductor La[O _1- _x F _x ]FeAs ( x = 0.05−0.12) with T _c = 26 K
journal, March 2008

The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides
journal, October 2010

Quasiparticle Scattering Induced by Charge Doping of Iron-Pnictide Superconductors Probed by Collective Vortex Pinning
journal, December 2010

Flux pinning in ${PrFeAsO}_{0.9}$ and ${NdFeAsO}_{0.9} F_{0.1}$ superconducting crystals
journal, May 2010

Small anisotropy, weak thermal fluctuations, and high field superconductivity in Co-doped iron pnictide Ba(Fe1−xCox)2As2
journal, February 2009

High-Tc superconducting materials for electric power applications
journal, November 2001

Flux-line pinning in ${Bi}_{2}$ ${Sr}_{2}$ ${Ca}_{1}$ ${Cu}_{2}$ $O_{x}$ crystals: Interplay of intrinsic 2D behavior and irradiation-induced columnar defects
journal, February 1992

Effect of 5.3-GeV Pb-ion irradiation on irreversible magnetization in Y-Ba-Cu-O crystals
journal, October 1991

Anisotropic flux pinning in ${YBa}_{2} {Cu}_{3} O_{7 - δ}$ single crystals: The influence of defect size and density as determined from neutron irradiation
journal, May 1998

Effects of particle irradiations on vortex states in iron-based superconductors
journal, July 2012

Neutron irradiation of SmFeAsO _{1− x} F _x
journal, May 2009

Effects of disorder on the superconducting properties of BaFe _1.8 Co _0.2 As ₂ single crystals
journal, August 2009

High, magnetic field independent critical currents in (Ba,K)Fe ₂ As ₂ crystals
journal, July 2012

Vortex-glass phase transition and enhanced flux pinning in C ⁴⁺ -irradiated BaFe _1.9 Ni _0.1 As ₂ superconducting single crystals
journal, August 2013

Critical current anisotropy in Nd-1111 single crystals and the influence of neutron irradiation
journal, March 2014

Pair-breaking effects induced by 3-MeV proton irradiation in Ba $_{1 - x}$ K $_{x}$ Fe $_{2}$ As $_{2}$
journal, December 2013

Vortex dynamics in proton irradiated Co-doped BaFe2As2
journal, November 2011

Magnetotransport of proton-irradiated ${BaFe}_{2} {As}_{2}$ and ${BaFe}_{1.985} {Co}_{0.015} {As}_{2}$ single crystals
journal, February 2015

Enhancement of critical current density and vortex activation energy in proton-irradiated Co-doped ${BaFe}_{2} {As}_{2}$
journal, September 2012

Observation of the Crossover from Two-Gap to Single-Gap Superconductivity through Specific Heat Measurements in Neutron-Irradiated ${MgB}_{2}$
journal, February 2006

Superconductivity at 22 K in Co-Doped ${BaFe}_{2} {As}_{2}$ Crystals
journal, September 2008

Neutron scattering study of the interplay between structure and magnetism in $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$
journal, April 2009

Quantitative theory of transport in vortex matter of type-II superconductors in the presence of random pinning
journal, July 2007

Suppression of the critical temperature of superconducting $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ by point defects from proton irradiation
journal, December 2010

Influence of random point defects introduced by proton irradiation on critical current density and vortex dynamics of Ba(Fe $_{0.925}$ Co $_{0.075}$ ) $_{2}$ As $_{2}$ single crystals
journal, January 2012

Unprecedented anisotropic metallic state in undoped iron arsenide BaFe2As2 revealed by optical spectroscopy
journal, July 2011

Magnetization of High-Field Superconductors
journal, January 1964

Thermally assisted flux flow at small driving forces
journal, February 1989

Flux pinning mechanisms in type II superconductors
journal, August 1974

Evidence for mean free path fluctuation induced pinning in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7}$ and ${YBa}_{2}$ ${Cu}_{4}$ $O_{8}$ films
journal, March 1994

Measurements of the superconducting fluctuations in optimally doped BaFe _{2− x} Ni _x As ₂ under high magnetic fields: probing the 3D-anisotropic Ginzburg–Landau approach
journal, May 2014

Enhanced upper critical field in Co-doped Ba122 superconductors by lattice defect tuning
journal, November 2019

Radiation effects on iron-based superconductors
journal, December 2017

Enhanced upper critical field in Co-doped Ba122 superconductors by lattice defect tuning
text, January 2019