Glassy Dynamics in a heavy ion irradiated NbSe2 crystal

Eley, Serena Merteen; Khilstrom, Karen; Fotovat, R.; Xiao, Z. L.; Chen, Aiping; Chen, Di; Leroux, Maxime; Welp, Ulrich; Kwok, Wai -Kwong; Civale, Leonardo

doi:10.1038/s41598-018-31203-0

Title: Glassy Dynamics in a heavy ion irradiated NbSe₂ crystal

Abstract

Fascination with glassy states has persisted since Fisher introduced the vortex-glass as a new thermodynamic phase that is a true superconductor that lacks conventional long-range order. Though Fisher’s original model considered point disorder, it was later predicted that columnar defects (CDs) could also induce glassiness — specifically, a Bose-glass phase. In YBa₂Cu₃O_7–x (YBCO), glassy states can cause distinct behavior in the temperature (T) dependent rate of thermally activated vortex motion (S). The vortex-glass state produces a plateau in S(T) whereas a Bose-glass can transition into a state hosting vortex excitations called double-kinks that can expand, creating a large peak in S(T). Although glass phases have been well-studied in YBCO, few studies exist of other materials containing CDs that could contribute to distinguishing universal behavior. Here, we report on the effectiveness of CDs tilted ~30° from the c-axis in reducing S in a NbSe₂ crystal. The magnetization is 5 times higher and S is minimized when the field is parallel to the defects versus aligned with the c-axis. We see signatures of glassiness in both field orientations, but do not observe a peak in S(T) nor a plateau at values observed in YBCO. Lastly, we discuss the possibility that competing disordermore »« less

Authors:

^[1]; Khilstrom, Karen ^[2]; Fotovat, R. ^[2]; Xiao, Z. L. ^[2];

^[3];

^[4]; Welp, Ulrich ^[2]; Kwok, Wai -Kwong ^[2];

^[3]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Colorado School of Mines, Golden, CO (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

Publication Date:: Mon Sep 03 00:00:00 EDT 2018

Research Org.:: Energy Frontier Research Centers (EFRC) (United States). Center for Emergent Superconductivity (CES); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE Laboratory Directed Research and Development (LDRD) Program

OSTI Identifier:: 1471362

Report Number(s):: LA-UR-18-22335
Journal ID: ISSN 2045-2322

Grant/Contract Number:: AC52-06NA25396

Resource Type:: Accepted Manuscript

Journal Name:: Scientific Reports

Additional Journal Information:: Journal Volume: 8; Journal Issue: 1; Journal ID: ISSN 2045-2322

Publisher:: Nature Publishing Group

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; Material Science; Superconductivity, NbSe(2), vortex matter, vortex dynamics

Citation Formats


                    Eley, Serena Merteen, Khilstrom, Karen, Fotovat, R., Xiao, Z. L., Chen, Aiping, Chen, Di, Leroux, Maxime, Welp, Ulrich, Kwok, Wai -Kwong, and Civale, Leonardo. Glassy Dynamics in a heavy ion irradiated NbSe2 crystal.  United States: N. p., 2018. 
Web.  doi:10.1038/s41598-018-31203-0.

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                    Eley, Serena Merteen, Khilstrom, Karen, Fotovat, R., Xiao, Z. L., Chen, Aiping, Chen, Di, Leroux, Maxime, Welp, Ulrich, Kwok, Wai -Kwong, & Civale, Leonardo. Glassy Dynamics in a heavy ion irradiated NbSe2 crystal.  United States.  https://doi.org/10.1038/s41598-018-31203-0

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                    Eley, Serena Merteen, Khilstrom, Karen, Fotovat, R., Xiao, Z. L., Chen, Aiping, Chen, Di, Leroux, Maxime, Welp, Ulrich, Kwok, Wai -Kwong, and Civale, Leonardo. Mon .  
"Glassy Dynamics in a heavy ion irradiated NbSe2 crystal".  United States.  https://doi.org/10.1038/s41598-018-31203-0.  https://www.osti.gov/servlets/purl/1471362.

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@article{osti_1471362,

  title        = {Glassy Dynamics in a heavy ion irradiated NbSe2 crystal},

  author       = {Eley, Serena Merteen and Khilstrom, Karen and Fotovat, R. and Xiao, Z. L. and Chen, Aiping and Chen, Di and Leroux, Maxime and Welp, Ulrich and Kwok, Wai -Kwong and Civale, Leonardo},

  abstractNote = {Fascination with glassy states has persisted since Fisher introduced the vortex-glass as a new thermodynamic phase that is a true superconductor that lacks conventional long-range order. Though Fisher’s original model considered point disorder, it was later predicted that columnar defects (CDs) could also induce glassiness — specifically, a Bose-glass phase. In YBa2Cu3O7–x (YBCO), glassy states can cause distinct behavior in the temperature (T) dependent rate of thermally activated vortex motion (S). The vortex-glass state produces a plateau in S(T) whereas a Bose-glass can transition into a state hosting vortex excitations called double-kinks that can expand, creating a large peak in S(T). Although glass phases have been well-studied in YBCO, few studies exist of other materials containing CDs that could contribute to distinguishing universal behavior. Here, we report on the effectiveness of CDs tilted ~30° from the c-axis in reducing S in a NbSe2 crystal. The magnetization is 5 times higher and S is minimized when the field is parallel to the defects versus aligned with the c-axis. We see signatures of glassiness in both field orientations, but do not observe a peak in S(T) nor a plateau at values observed in YBCO. Lastly, we discuss the possibility that competing disorder induces a field-orientation-driven transition from a Bose-glass to an anisotropic glass involving both point and columnar disorder.},

  doi          = {10.1038/s41598-018-31203-0},

  journal      = {Scientific Reports},

  number       = 1,

  volume       = 8,

  place        = {United States},

  year         = {Mon Sep 03 00:00:00 EDT 2018},

  month        = {Mon Sep 03 00:00:00 EDT 2018}

}

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Evidence for vortex staircases in the whole angular range due to competing correlated pinning mechanisms
journal, June 1999

Silhanek, A.; Civale, L.; Candia, S.
Physical Review B, Vol. 59, Issue 21
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Critical state in thin anisotropic superconductors of arbitrary shape
journal, September 2000

Mikitik, Grigorii P.; Brandt, Ernst Helmut
Physical Review B, Vol. 62, Issue 10
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Boson localization and pinning by correlated disorder in high-temperature superconductors
journal, April 1992

Nelson, David R.; Vinokur, V. M.
Physical Review Letters, Vol. 68, Issue 15
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Scanning tunneling microscopy of defects in NbSe[sub 2]
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Prodan, A.; Marinković, V.; Gril, R.
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures, Vol. 18, Issue 1
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The effect of vaginal closure technique on early post-operative pain following vaginal prolapse surgery: a feasibility pilot study and qualitative assessment
journal, January 2014

Maguire, Turlough; Mayne, Christopher; Willars, Janet
SpringerPlus, Vol. 3, Issue 1
DOI: 10.1186/2193-1801-3-1

Depth-Sensitive Visualization of Irradiation-Induced Columnar Defects in the Layered Superconductor 2H-NbSe ₂ via Scanning Probe Microscopy
journal, September 1993

Bauer, P.; Giethmann, C.; Kraus, M.
Europhysics Letters (EPL), Vol. 23, Issue 8
DOI: 10.1209/0295-5075/23/8/008

Observation of the Flux Line Lock-In Transition in Layered Superconductors
journal, February 1994

Steinmeyer, F.; Kleiner, R.; Müller, P.
Europhysics Letters (EPL), Vol. 25, Issue 6
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Latent Track in Magnetic Insulators:Electronic Stopping Power Threshold and Damage Morphology
journal, January 1992

Toulemonde, M.; Studer, F.
Solid State Phenomena, Vol. 23-24
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Magnetic relaxation and collective vortex creep in FeTe$_{0.6}$Se$_{0.4}$ single crystal
text, January 2013

Sun, Yue; Taen, Toshihiro; Tsuchiya, Yuji
arXiv
DOI: 10.48550/arxiv.1309.7406

Experimental evidence for a Bragg glass density wave phase in a transition-metal dichalcogenide
text, January 2014

Okamoto, Jun-ichi; Arguello, Carlos J.; Rosenthal, Ethan P.
arXiv
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Imaging atomic-scale effects of high-energy ion irradiation on superconductivity and vortex pinning in Fe(Se,Te)
text, January 2015

Massee, Freek; Sprau, Peter Oliver; Wang, Yong-Lei
arXiv
DOI: 10.48550/arxiv.1506.05385

Universal Lower Limit on Vortex Creep in Superconductors
text, January 2016

Eley, Serena; Miura, Masashi; Maiorov, Boris
arXiv
DOI: 10.48550/arxiv.1608.08092

Theory of plastic vortex creep
text, January 2000

Kierfeld, J.; Nordborg, H.; Vinokur, V. M.
arXiv
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Works referencing / citing this record:

Experimental test of strong pinning and creep in current-voltage characteristics of type-II superconductors
journal, December 2019

Buchacek, M.; Xiao, Z. L.; Dutta, S.
Physical Review B, Vol. 100, Issue 22
DOI: 10.1103/physrevb.100.224502

Thermal creep induced by cooling a superconducting vortex lattice
journal, February 2020

Willa, Roland; Galvis, Jose Augusto; Benito-Llorens, Jose
Physical Review Research, Vol. 2, Issue 1
DOI: 10.1103/physrevresearch.2.013125

Thermal creep induced by cooling a superconducting vortex lattice
text, January 2020

Willa, Roland; Augusto Galvis, Jose; Benito-Llorens, Jose
ETH Zurich
DOI: 10.3929/ethz-b-000467894

Experimental test of strong pinning and creep in current-voltage characteristics of type II superconductors
text, January 2019

Buchacek, Martin; Xiao, Zhi-Li; Dutta, Surajit
arXiv
DOI: 10.48550/arxiv.1909.01707

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Title: Glassy Dynamics in a heavy ion irradiated NbSe2 crystal

Abstract

Citation Formats

Vortex-glass superconductivity: A possible new phase in bulk high- T c oxides journal, March 1989

Vortices in high-temperature superconductors journal, October 1994

Boson localization and correlated pinning of superconducting vortex arrays journal, November 1993

Columnar defects acting as passive internal field detectors journal, May 2002

Superfast Vortex Creep in YBa 2 Cu 3 O 7 − δ Crystals with Columnar Defects: Evidence for Variable-Range Vortex Hopping journal, April 1997

Magnetic relaxation in high-temperature superconductors journal, July 1996

High field superconducting properties of Ba(Fe1−xCox)2As2 thin films journal, November 2015

Materials science challenges for high-temperature superconducting wire journal, September 2007

Competition and cooperation of pinning by extrinsic point-like defects and intrinsic strong columnar defects in BaFe 2 As 2 thin films journal, September 2012

Vortices in high-performance high-temperature superconductors journal, September 2016

Angular-dependent vortex pinning mechanisms in YBa2Cu3O7 coated conductors and thin films journal, March 2004

Observation of lock-in phenomena in heavy-ion-irradiated single crystal of Ba ( Fe 0.93 Co 0.07 ) 2 As 2 journal, January 2014

Interplay between two families of columnar defects in Bi 2 Sr 2 CaCu 2 O 8 single crystals journal, December 2000

Synergetic combination of different types of defect to optimize pinning landscape using BaZrO3-doped YBa2Cu3O7 journal, April 2009

Toward Superconducting Critical Current by Design journal, March 2016

Enhancement of critical current density in Co-doped BaFe 2 As 2 with columnar defects introduced by heavy-ion irradiation journal, July 2009

Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe 2 As 2 single crystals journal, April 2015

Critical current densities and flux creep rate in Co-doped BaFe2As2 with columnar defects introduced by heavy-Ion irradiation journal, November 2010

Huge critical current density and tailored superconducting anisotropy in SmFeAsO0.8F0.15 by low-density columnar-defect incorporation journal, November 2013

Effects of heavy-ion irradiation on FeSe journal, March 2017

Universal lower limit on vortex creep in superconductors journal, February 2017

Growth of faceted niobium diselenide journal, March 1994

Characterization of collective ground states in single-layer NbSe2 journal, November 2015

Scanning tunneling microscopy of defects in NbSe[sub 2] journal, January 2000

Visualizing the charge density wave transition in 2 H - NbSe 2 in real space journal, June 2014

Quasiparticle Interference, Quasiparticle Interactions, and the Origin of the Charge Density Wave in 2 H − NbSe 2 journal, January 2015

Penetration Depth Study of Superconducting Gap Structure of 2 H − NbSe 2 journal, February 2007

Field Dependence of the Vortex Core Size in a Multiband Superconductor journal, November 2005

Measurements of the penetration depth in the superconducting layer crystals NbSe2 and TaS2 (pyridine) 12 journal, November 1980

The effect of vaginal closure technique on early post-operative pain following vaginal prolapse surgery: a feasibility pilot study and qualitative assessment journal, January 2014

Depth-Sensitive Visualization of Irradiation-Induced Columnar Defects in the Layered Superconductor 2H-NbSe 2 via Scanning Probe Microscopy journal, September 1993

Imaging atomic-scale effects of high-energy ion irradiation on superconductivity and vortex pinning in Fe(Se,Te) journal, May 2015

Magnetization of High-Field Superconductors journal, January 1964

Anisotropic critical currents in Ba 2 YCu 3 O 7 analyzed using an extended Bean model journal, July 1989

Field, temperature, and angle dependent critical current density J c ( H , T ,θ) in coated conductors obtained via contact-free methods journal, December 2009

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

Irradiation damage in magnetic insulators journal, March 1992

Vortex confinement by columnar defects in YBa 2 Cu 3 O 7 crystals: Enhanced pinning at high fields and temperatures journal, July 1991

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

Second magnetization peak effect, vortex dynamics and flux pinning in 112-type superconductor Ca0.8La0.2Fe1−xCoxAs2 journal, March 2016

Flux dynamics associated with the second magnetization peak in the iron pnictide Ba 1 − x K x Fe 2 As 2 journal, August 2010

Peak effect, plateau effect, and fishtail anomaly: The reentrant amorphization of vortex matter in 2 H − NbSe 2 journal, November 2000

Strong pinning and elastic to plastic vortex crossover in Na-doped CaFe 2 As 2 single crystals journal, September 2011

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

Decoupling and tuning competing effects of different types of defects on flux creep in irradiated YBa 2 Cu 3 O 7− δ coated conductors journal, November 2016

Flux dynamics and vortex phase diagram in Ba ( Fe 1 − x Co x ) 2 As 2 single crystals revealed by magnetization and its relaxation journal, January 2010

Magnetic relaxation and collective vortex creep in FeTe 0.6 Se 0.4 single crystal journal, September 2013

Magnetization relaxation and collective vortex pinning in the Fe-based superconductor SmFeAsO 0.9 F 0.1 journal, September 2008

Theory of Plastic Vortex Creep journal, December 2000

Plastic Vortex Creep in YBa 2 Cu 3 O 7 − x Crystals journal, August 1996

Observation of the Flux Line Lock-In Transition in Layered Superconductors journal, February 1994

Flux-line lock-in to CuO planes in a La 1.9 Sr 0.1 CuO 4 single crystal journal, September 1997

Direct observation of tilted vortex structures induced by twin boundaries in YBa 2 Cu 3 O y single crystals journal, August 1997

Vortex pinning and slow creep in high- J c MgB 2 thin films: a magnetic and transport study journal, June 2005

Materials design for artificial pinning centres in superconductor PLD coated conductors journal, November 2017

Materials design for artificial pinning centres in Superconductor PLD Coated Conductors text, January 2017

Characterization of collective ground states in single-layer NbSe2 text, January 2015

Effects of heavy-ion irradiation on FeSe text, January 2017

Theory of plastic vortex creep text, January 2000

Evidence for vortex staircases in the whole angular range due to competing correlated pinning mechanisms text, January 1999

Plastic vortex-creep in YBa$_2$Cu$_3$O$_{7-x}$ crystals text, January 1996

Toward Superconducting Critical Current by Design journal, March 2016

Growth of faceted niobium diselenide journal, March 1994

Measurements of the penetration depth in the superconducting layer crystals NbSe2 and TaS2 (pyridine) 12 journal, November 1980

Critical current densities and flux creep rate in Co-doped BaFe2As2 with columnar defects introduced by heavy-Ion irradiation journal, November 2010

Effect of secondary electrons from latent tracks created in YBCO by swift heavy ion irradiation journal, June 2003

Huge critical current density and tailored superconducting anisotropy in SmFeAsO0.8F0.15 by low-density columnar-defect incorporation journal, November 2013

Synergetic combination of different types of defect to optimize pinning landscape using BaZrO3-doped YBa2Cu3O7 journal, April 2009

Characterization of collective ground states in single-layer NbSe2 journal, November 2015

Second magnetization peak effect, vortex dynamics and flux pinning in 112-type superconductor Ca0.8La0.2Fe1−xCoxAs2 journal, March 2016

Anisotropic critical currents in Ba 2 YCu 3 O 7 analyzed using an extended Bean model journal, July 1989

Angular-dependent vortex pinning mechanisms in YBa2Cu3O7 coated conductors and thin films journal, March 2004

Vortices in high-performance high-temperature superconductors journal, September 2016

Vortex pinning and slow creep in high- J c MgB 2 thin films: a magnetic and transport study journal, June 2005

Field, temperature, and angle dependent critical current density J c ( H , T ,θ) in coated conductors obtained via contact-free methods journal, December 2009

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

Decoupling and tuning competing effects of different types of defects on flux creep in irradiated YBa 2 Cu 3 O 7− δ coated conductors journal, November 2016

Title: Glassy Dynamics in a heavy ion irradiated NbSe₂ crystal

Vortex-glass superconductivity: A possible new phase in bulk high- $T_{c}$ oxides
journal, March 1989

Vortices in high-temperature superconductors
journal, October 1994

Boson localization and correlated pinning of superconducting vortex arrays
journal, November 1993

Columnar defects acting as passive internal field detectors
journal, May 2002

Superfast Vortex Creep in ${YBa}_{2} {Cu}_{3} O_{7 - δ}$ Crystals with Columnar Defects: Evidence for Variable-Range Vortex Hopping
journal, April 1997

Magnetic relaxation in high-temperature superconductors
journal, July 1996

High field superconducting properties of Ba(Fe1−xCox)2As2 thin films
journal, November 2015

Materials science challenges for high-temperature superconducting wire
journal, September 2007

Competition and cooperation of pinning by extrinsic point-like defects and intrinsic strong columnar defects in BaFe $_{2}$ As $_{2}$ thin films
journal, September 2012

Vortices in high-performance high-temperature superconductors
journal, September 2016

Angular-dependent vortex pinning mechanisms in YBa2Cu3O7 coated conductors and thin films
journal, March 2004

Observation of lock-in phenomena in heavy-ion-irradiated single crystal of $Ba ({Fe}_{0.93}$ Co $_{0.07}$ ) $_{2}$ As $_{2}$
journal, January 2014

Interplay between two families of columnar defects in ${Bi}_{2} {Sr}_{2} {CaCu}_{2} O_{8}$ single crystals
journal, December 2000

Synergetic combination of different types of defect to optimize pinning landscape using BaZrO3-doped YBa2Cu3O7
journal, April 2009

Toward Superconducting Critical Current by Design
journal, March 2016

Enhancement of critical current density in Co-doped ${BaFe}_{2} {As}_{2}$ with columnar defects introduced by heavy-ion irradiation
journal, July 2009

Enhancement of the critical current density by increasing the collective pinning energy in heavy ion irradiated Co-doped BaFe ₂ As ₂ single crystals
journal, April 2015

Critical current densities and flux creep rate in Co-doped BaFe2As2 with columnar defects introduced by heavy-Ion irradiation
journal, November 2010

Huge critical current density and tailored superconducting anisotropy in SmFeAsO0.8F0.15 by low-density columnar-defect incorporation
journal, November 2013

Effects of heavy-ion irradiation on FeSe
journal, March 2017

Universal lower limit on vortex creep in superconductors
journal, February 2017

Growth of faceted niobium diselenide
journal, March 1994

Characterization of collective ground states in single-layer NbSe2
journal, November 2015

Scanning tunneling microscopy of defects in NbSe[sub 2]
journal, January 2000

Visualizing the charge density wave transition in $2 H$ - ${NbSe}_{2}$ in real space
journal, June 2014

Quasiparticle Interference, Quasiparticle Interactions, and the Origin of the Charge Density Wave in $2 H − {NbSe}_{2}$
journal, January 2015

Penetration Depth Study of Superconducting Gap Structure of $2 H − {NbSe}_{2}$
journal, February 2007

Field Dependence of the Vortex Core Size in a Multiband Superconductor
journal, November 2005

Measurements of the penetration depth in the superconducting layer crystals NbSe2 and TaS2 (pyridine) 12
journal, November 1980

The effect of vaginal closure technique on early post-operative pain following vaginal prolapse surgery: a feasibility pilot study and qualitative assessment
journal, January 2014

Depth-Sensitive Visualization of Irradiation-Induced Columnar Defects in the Layered Superconductor 2H-NbSe ₂ via Scanning Probe Microscopy
journal, September 1993

Imaging atomic-scale effects of high-energy ion irradiation on superconductivity and vortex pinning in Fe(Se,Te)
journal, May 2015

Magnetization of High-Field Superconductors
journal, January 1964

Anisotropic critical currents in Ba ₂ YCu ₃ O ₇ analyzed using an extended Bean model
journal, July 1989

Field, temperature, and angle dependent critical current density J _c ( H , T ,θ) in coated conductors obtained via contact-free methods
journal, December 2009

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

Irradiation damage in magnetic insulators
journal, March 1992

Vortex confinement by columnar defects in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7}$ crystals: Enhanced pinning at high fields and temperatures
journal, July 1991

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

Second magnetization peak effect, vortex dynamics and flux pinning in 112-type superconductor Ca0.8La0.2Fe1−xCoxAs2
journal, March 2016

Flux dynamics associated with the second magnetization peak in the iron pnictide ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$
journal, August 2010

Peak effect, plateau effect, and fishtail anomaly: The reentrant amorphization of vortex matter in $2 H - {NbSe}_{2}$
journal, November 2000

Strong pinning and elastic to plastic vortex crossover in Na-doped CaFe $_{2}$ As $_{2}$ single crystals
journal, September 2011

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

Decoupling and tuning competing effects of different types of defects on flux creep in irradiated YBa ₂ Cu ₃ O _{7− δ} coated conductors
journal, November 2016

Flux dynamics and vortex phase diagram in $Ba {({Fe}_{1 - x} {Co}_{x})}_{2} {As}_{2}$ single crystals revealed by magnetization and its relaxation
journal, January 2010

Magnetic relaxation and collective vortex creep in FeTe _0.6 Se _0.4 single crystal
journal, September 2013

Magnetization relaxation and collective vortex pinning in the Fe-based superconductor ${SmFeAsO}_{0.9} F_{0.1}$
journal, September 2008

Theory of Plastic Vortex Creep
journal, December 2000

Plastic Vortex Creep in ${YBa}_{2} {Cu}_{3} O_{7 - x}$ Crystals
journal, August 1996

Observation of the Flux Line Lock-In Transition in Layered Superconductors
journal, February 1994

Flux-line lock-in to CuO planes in a ${La}_{1.9} {Sr}_{0.1} {CuO}_{4}$ single crystal
journal, September 1997

Direct observation of tilted vortex structures induced by twin boundaries in ${YBa}_{2} {Cu}_{3} O_{y}$ single crystals
journal, August 1997

Vortex pinning and slow creep in high- J _c MgB ₂ thin films: a magnetic and transport study
journal, June 2005

Materials design for artificial pinning centres in superconductor PLD coated conductors
journal, November 2017

Materials design for artificial pinning centres in Superconductor PLD Coated Conductors
text, January 2017

Characterization of collective ground states in single-layer NbSe2
text, January 2015

Effects of heavy-ion irradiation on FeSe
text, January 2017

Theory of plastic vortex creep
text, January 2000

Evidence for vortex staircases in the whole angular range due to competing correlated pinning mechanisms
text, January 1999

Plastic vortex-creep in YBa$_2$Cu$_3$O$_{7-x}$ crystals
text, January 1996

Toward Superconducting Critical Current by Design
journal, March 2016

Growth of faceted niobium diselenide
journal, March 1994

Measurements of the penetration depth in the superconducting layer crystals NbSe2 and TaS2 (pyridine) 12
journal, November 1980

Critical current densities and flux creep rate in Co-doped BaFe2As2 with columnar defects introduced by heavy-Ion irradiation
journal, November 2010

Effect of secondary electrons from latent tracks created in YBCO by swift heavy ion irradiation
journal, June 2003

Huge critical current density and tailored superconducting anisotropy in SmFeAsO0.8F0.15 by low-density columnar-defect incorporation
journal, November 2013

Synergetic combination of different types of defect to optimize pinning landscape using BaZrO3-doped YBa2Cu3O7
journal, April 2009

Characterization of collective ground states in single-layer NbSe2
journal, November 2015

Second magnetization peak effect, vortex dynamics and flux pinning in 112-type superconductor Ca0.8La0.2Fe1−xCoxAs2
journal, March 2016

Anisotropic critical currents in Ba ₂ YCu ₃ O ₇ analyzed using an extended Bean model
journal, July 1989

Angular-dependent vortex pinning mechanisms in YBa2Cu3O7 coated conductors and thin films
journal, March 2004

Vortices in high-performance high-temperature superconductors
journal, September 2016

Vortex pinning and slow creep in high- J _c MgB ₂ thin films: a magnetic and transport study
journal, June 2005

Field, temperature, and angle dependent critical current density J _c ( H , T ,θ) in coated conductors obtained via contact-free methods
journal, December 2009

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

Decoupling and tuning competing effects of different types of defects on flux creep in irradiated YBa ₂ Cu ₃ O _{7− δ} coated conductors
journal, November 2016

Materials design for artificial pinning centres in superconductor PLD coated conductors
journal, November 2017

Evidence for vortex staircases in the whole angular range due to competing correlated pinning mechanisms
journal, June 1999