Ultrahigh critical current densities, the vortex phase diagram, and the effect of granularity of the stoichiometric high-Tc superconductor CaKFe4As4

Singh, Shiv J.; Bristow, Matthew; Meier, William R.; Taylor, Patrick; Blundell, Stephen J.; Canfield, Paul C.; Coldea, Amalia I.

doi:10.1103/PhysRevMaterials.2.074802

Title: Ultrahigh critical current densities, the vortex phase diagram, and the effect of granularity of the stoichiometric high-T_c superconductor CaKFe₄As₄

Journal Article · Mon Jul 30 00:00:00 EDT 2018 · Physical Review Materials

DOI:https://doi.org/10.1103/PhysRevMaterials.2.074802· OSTI ID:1556119

Singh, Shiv J. ^[1]; Bristow, Matthew ^[1]; Meier, William R. ^[2]; Taylor, Patrick ^[1]; Blundell, Stephen J. ^[1]; Canfield, Paul C. ^[2]; Coldea, Amalia I. ^[1]

Univ. of Oxford (United Kingdom)
Ames Lab. and Iowa State Univ., Ames, IA (United States)

We present a comprehensive study of the critical current densities and the superconducting vortex phase diagram in the stoichiometric superconductor CaKFe₄As₄ which has a critical temperature of ~35 K. We performed detailed magnetization measurements both of high quality single crystals for different orientations in an applied magnetic field up to 16 T and for a powder sample. We find an extremely large critical current density, J_c, up to 10⁸ A/cm² for single crystals when H∥(ab) at 5 K, which remains robust in fields up to 16 T, being the largest of any other iron-based superconductor. The critical current density is reduced by a factor 10 in single crystals when H∥c at 5 K and significantly suppressed by the presence of grain boundaries in the powder sample. We also observe the presence of the fishtail effect in the magnetic hysteresis loops of single crystals when H∥c. The flux pinning force density and the pinning parameters suggest that the large critical current could be linked to the existence of point core and surface pinning. Based on the vortex phase diagram and the large critical current densities, CaKFe₄As₄ is now established as a potential iron-based superconductor candidate for practical applications.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

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

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

Grant/Contract Number:: AC02-07CH11358; GBMF4411; EP/I004475/1

OSTI ID:: 1556119

Alternate ID(s):: OSTI ID: 1462138

Report Number(s):: is-j 9731; PRMHAR

Journal Information:: Physical Review Materials, Vol. 2, Issue 7; ISSN 2475-9953

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 44 works

Citation information provided by
Web of Science

References (64)

Iron-Based Layered Superconductor La[O _1- _x F _x ]FeAs ( x = 0.05−0.12) with T _c = 26 K Kamihara, Yoichi; Watanabe, Takumi; Hirano, Masahiro Journal of the American Chemical Society, Vol. 130, Issue 11 https://doi.org/10.1021/ja800073m	journal	March 2008
Exploration of new superconductors and functional materials, and fabrication of superconducting tapes and wires of iron pnictides Hosono, Hideo; Tanabe, Keiichi; Takayama-Muromachi, Eiji Science and Technology of Advanced Materials, Vol. 16, Issue 3 https://doi.org/10.1088/1468-6996/16/3/033503	journal	June 2015
Superconductivity and phase diagram in iron-based arsenic-oxides ReFeAsO _1−δ (Re = rare-earth metal) without fluorine doping Ren, Zhi-An; Che, Guang-Can; Dong, Xiao-Li EPL (Europhysics Letters), Vol. 83, Issue 1 https://doi.org/10.1209/0295-5075/83/17002	journal	June 2008
Transition Temperature and Upper Critical Field in $ \hbox{SmFeAsO}_{1 - x}\hbox{F}_{x}$ Synthesized at Low Heating Temperatures Singh, S. J.; Shimoyama, J.; Yamamoto, A. IEEE Transactions on Applied Superconductivity, Vol. 23, Issue 3 https://doi.org/10.1109/TASC.2013.2239352	journal	June 2013
Upper critical fields and thermally-activated transport of ${NdFeAsO}_{0.7} F_{0.3}$ single crystal Jaroszynski, J.; Hunte, F.; Balicas, L. Physical Review B, Vol. 78, Issue 17 https://doi.org/10.1103/PhysRevB.78.174523	journal	November 2008
Comparative high-field magnetotransport of the oxypnictide superconductors $R {FeAsO}_{1 - x} F_{x}$ ( $R = La$ , Nd) and ${SmFeAsO}_{1 - δ}$ Jaroszynski, J.; Riggs, Scott C.; Hunte, F. Physical Review B, Vol. 78, Issue 6 https://doi.org/10.1103/PhysRevB.78.064511	journal	August 2008
Progress in wire fabrication of iron-based superconductors Ma, Yanwei Superconductor Science and Technology, Vol. 25, Issue 11 https://doi.org/10.1088/0953-2048/25/11/113001	journal	September 2012
Potentials of iron-based superconductors for practical future materials Shimoyama, Jun-ichi Superconductor Science and Technology, Vol. 27, Issue 4 https://doi.org/10.1088/0953-2048/27/4/044002	journal	March 2014
New-Structure-Type Fe-Based Superconductors: Ca A Fe ₄ As ₄ ( A = K, Rb, Cs) and Sr A Fe ₄ As ₄ ( A = Rb, Cs) Iyo, Akira; Kawashima, Kenji; Kinjo, Tatsuya Journal of the American Chemical Society, Vol. 138, Issue 10 https://doi.org/10.1021/jacs.5b12571	journal	March 2016
Anisotropic thermodynamic and transport properties of single-crystalline ${CaKFe}_{4} {As}_{4}$ Meier, W. R.; Kong, T.; Kaluarachchi, U. S. Physical Review B, Vol. 94, Issue 6 https://doi.org/10.1103/PhysRevB.94.064501	journal	August 2016
Enhancement of the Superconducting Gap by Nesting in ${CaKFe}_{4} {As}_{4}$ : A New High Temperature Superconductor Mou, Daixiang; Kong, Tai; Meier, William R. Physical Review Letters, Vol. 117, Issue 27 https://doi.org/10.1103/PhysRevLett.117.277001	journal	December 2016
Hedgehog spin-vortex crystal stabilized in a hole-doped iron-based superconductor Meier, William R.; Ding, Qing-Ping; Kreyssig, Andreas npj Quantum Materials, Vol. 3, Issue 1 https://doi.org/10.1038/s41535-017-0076-x	journal	February 2018
The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides Johnston, David C. Advances in Physics, Vol. 59, Issue 6 https://doi.org/10.1080/00018732.2010.513480	journal	October 2010
Using gap symmetry and structure to reveal the pairing mechanism in Fe-based superconductors Hirschfeld, Peter J. Comptes Rendus Physique, Vol. 17, Issue 1-2 https://doi.org/10.1016/j.crhy.2015.10.002	journal	January 2016
Doping-dependent critical current properties in K, Co, and P-doped $BaF e_{2} A s_{2}$ single crystals Ishida, Shigeyuki; Song, Dongjoon; Ogino, Hiraku Physical Review B, Vol. 95, Issue 1 https://doi.org/10.1103/PhysRevB.95.014517	journal	January 2017
Vortices in high-temperature superconductors Blatter, G.; Feigel'man, M. V.; Geshkenbein, V. B. Reviews of Modern Physics, Vol. 66, Issue 4 https://doi.org/10.1103/RevModPhys.66.1125	journal	October 1994
Theory of collective flux creep Feigel’man, M. V.; Geshkenbein, V. B.; Larkin, A. I. Physical Review Letters, Vol. 63, Issue 20 https://doi.org/10.1103/PhysRevLett.63.2303	journal	November 1989
Optimization of the crystal growth of the superconductor ${CaKFe}_{4} {As}_{4}$ from solution in the $FeAs − {CaFe}_{2} {As}_{2} − {KFe}_{2} {As}_{2}$ system Meier, W. R.; Kong, T.; Bud'ko, S. L. Physical Review Materials, Vol. 1, Issue 1 https://doi.org/10.1103/PhysRevMaterials.1.013401	journal	June 2017
Magnetization of High-Field Superconductors Bean, Charles P. Reviews of Modern Physics, Vol. 36, Issue 1 https://doi.org/10.1103/RevModPhys.36.31	journal	January 1964
Flux pinning mechanisms in type II superconductors Dew-Hughes, D. Philosophical Magazine, Vol. 30, Issue 2 https://doi.org/10.1080/14786439808206556	journal	August 1974
Demagnetizing factors of rectangular prisms and ellipsoids IEEE Transactions on Magnetics, Vol. 38, Issue 4 https://doi.org/10.1109/TMAG.2002.1017766	journal	July 2002
Temperature dependence of anisotropic lower critical fields in ( ${La}_{1 - x}$ ${Sr}_{x}$ $)_{2}$ ${CuO}_{4}$ Naito, Michio; Matsuda, Azusa; Kitazawa, Koichi Physical Review B, Vol. 41, Issue 7 https://doi.org/10.1103/PhysRevB.41.4823	journal	March 1990
Irreversible magnetization of pin-free type-II superconductors Brandt, Ernst Helmut Physical Review B, Vol. 60, Issue 17 https://doi.org/10.1103/PhysRevB.60.11939	journal	November 1999
Significant enhancement of the intergrain coupling in lightly F-doped SmFeAsO superconductors Singh, Shiv Jee; Shimoyama, Jun-ichi; Yamamoto, Akiyasu Superconductor Science and Technology, Vol. 26, Issue 6 https://doi.org/10.1088/0953-2048/26/6/065006	journal	April 2013
Signature of multigap nodeless superconductivity in ${CaKFe}_{4} {As}_{4}$ Biswas, P. K.; Iyo, A.; Yoshida, Y. Physical Review B, Vol. 95, Issue 14 https://doi.org/10.1103/PhysRevB.95.140505	journal	April 2017
Temperature and Purity Dependence of the Superconducting Critical Field, $H_{c 2}$ . III. Electron Spin and Spin-Orbit Effects Werthamer, N. R.; Helfand, E.; Hohenberg, P. C. Physical Review, Vol. 147, Issue 1 https://doi.org/10.1103/PhysRev.147.295	journal	July 1966
Upper critical field, anisotropy, and superconducting properties of ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ single crystals Wang, Zhao-Sheng; Luo, Hui-Qian; Ren, Cong Physical Review B, Vol. 78, Issue 14 https://doi.org/10.1103/PhysRevB.78.140501	journal	October 2008
Upper Limit for the Critical Field in Hard Superconductors Clogston, A. M. Physical Review Letters, Vol. 9, Issue 6 https://doi.org/10.1103/PhysRevLett.9.266	journal	September 1962
Nodeless multiband superconductivity in stoichiometric single-crystalline ${CaKFe}_{4} {As}_{4}$ Cho, Kyuil; Fente, A.; Teknowijoyo, S. Physical Review B, Vol. 95, Issue 10 https://doi.org/10.1103/PhysRevB.95.100502	journal	March 2017
In-plane magnetic penetration depth of superconducting ${CaKFe}_{4} {As}_{4}$ Khasanov, Rustem; Meier, William R.; Wu, Yun Physical Review B, Vol. 97, Issue 14 https://doi.org/10.1103/PhysRevB.97.140503	journal	April 2018
Huge critical current density and tailored superconducting anisotropy in SmFeAsO0.8F0.15 by low-density columnar-defect incorporation Fang, L.; Jia, Y.; Mishra, V. Nature Communications, Vol. 4, Issue 1 https://doi.org/10.1038/ncomms3655	journal	November 2013
Fishtail effect and the vortex phase diagram of single crystal Ba0.6K0.4Fe2As2 Yang, Huan; Luo, Huiqian; Wang, Zhaosheng Applied Physics Letters, Vol. 93, Issue 14 https://doi.org/10.1063/1.2996576	journal	October 2008
Superconductivity at $T_{c} \sim 14 K$ in single-crystalline ${FeTe}_{0.61} {Se}_{0.39}$ Taen, T.; Tsuchiya, Y.; Nakajima, Y. Physical Review B, Vol. 80, Issue 9 https://doi.org/10.1103/PhysRevB.80.092502	journal	September 2009
Fishtail effect and vortex dynamics in LiFeAs single crystals Pramanik, A. K.; Harnagea, L.; Nacke, C. Physical Review B, Vol. 83, Issue 9 https://doi.org/10.1103/PhysRevB.83.094502	journal	March 2011
Magnetic properties and critical currents of MgB ₂ Eisterer, M. Superconductor Science and Technology, Vol. 20, Issue 12 https://doi.org/10.1088/0953-2048/20/12/R01	journal	October 2007
Critical fields and critical currents in MgB ₂ Caplin, A. D.; Bugoslavsky, Y.; Cohen, L. F. Superconductor Science and Technology, Vol. 16, Issue 2 https://doi.org/10.1088/0953-2048/16/2/309	journal	December 2002
Review of the superconducting properties of MgB ₂ Buzea, Cristina; Yamashita, Tsutomu Superconductor Science and Technology, Vol. 14, Issue 11 https://doi.org/10.1088/0953-2048/14/11/201	journal	November 2001
Increased critical current density in Nb–Ti wires having Nb artificial pinning centers Heussner, R. W.; Marquardt, J. D.; Lee, P. J. Applied Physics Letters, Vol. 70, Issue 7 https://doi.org/10.1063/1.118238	journal	February 1997
Effects of particle irradiations on vortex states in iron-based superconductors Tamegai, Tsuyoshi; Taen, Toshihiro; Yagyuda, Hidenori Superconductor Science and Technology, Vol. 25, Issue 8 https://doi.org/10.1088/0953-2048/25/8/084008	journal	July 2012
Critical state in thin anisotropic superconductors of arbitrary shape Mikitik, Grigorii P.; Brandt, Ernst Helmut Physical Review B, Vol. 62, Issue 10 https://doi.org/10.1103/PhysRevB.62.6800	journal	September 2000
Magnetization hysteresis and flux pinning in twinned and untwinned YBa ₂ Cu ₃ O _7−δ single crystals Welp, U.; Kwok, W. K.; Crabtree, G. W. Applied Physics Letters, Vol. 57, Issue 1 https://doi.org/10.1063/1.104237	journal	July 1990
Dynamic characteristics of the anomalous second peak in the magnetization curves of Bi-Sr-Ca-Cu-O Yeshurun, Y.; Bontemps, N.; Burlachkov, L. Physical Review B, Vol. 49, Issue 2 https://doi.org/10.1103/PhysRevB.49.1548	journal	January 1994
Origin of the magnetization peak effect in the ${Nb}_{3} Sn$ superconductor Lortz, R.; Musolino, N.; Wang, Y. Physical Review B, Vol. 75, Issue 9 https://doi.org/10.1103/PhysRevB.75.094503	journal	March 2007
Peak Effect in Single Crystal ${M g B}_{2}$ Superconductor for $H ∥ c$ -Axis Pissas, M.; Lee, S.; Yamamoto, A. Physical Review Letters, Vol. 89, Issue 9 https://doi.org/10.1103/PhysRevLett.89.097002	journal	August 2002
Flux Creep in Hard Superconductors Kim, Y. B.; Hempstead, C. F.; Strnad, A. R. Physical Review, Vol. 131, Issue 6 https://doi.org/10.1103/PhysRev.131.2486	journal	September 1963
Hard Superconductivity: Theory of the Motion of Abrikosov Flux Lines Anderson, P. W.; Kim, Y. B. Reviews of Modern Physics, Vol. 36, Issue 1 https://doi.org/10.1103/RevModPhys.36.39	journal	January 1964
The flux pinning force and vortex phase diagram of single crystal Yadav, C. S.; Paulose, P. L. Solid State Communications, Vol. 151, Issue 3 https://doi.org/10.1016/j.ssc.2010.11.030	journal	February 2011
Peak effect and scaling of irreversible properties in untwinned Y-Ba-Cu-O crystals Klein, L.; Yacoby, E. R.; Yeshurun, Y. Physical Review B, Vol. 49, Issue 6 https://doi.org/10.1103/PhysRevB.49.4403	journal	February 1994
Fishtail effect and small size normal core pinning in melt‐textured‐growth YBa ₂ Cu ₃ O _7−δ bulks Wen, Hai‐hu; Zhao, Zhong‐xian Applied Physics Letters, Vol. 68, Issue 6 https://doi.org/10.1063/1.116556	journal	February 1996
Vortex phase diagram of $Ba {({Fe}_{0.93} {Co}_{0.07})}_{2} {As}_{2}$ single crystals Prozorov, R.; Ni, N.; Tanatar, M. A. Physical Review B, Vol. 78, Issue 22 https://doi.org/10.1103/PhysRevB.78.224506	journal	December 2008
Flux dynamics associated with the second magnetization peak in the iron pnictide ${Ba}_{1 - x} K_{x} {Fe}_{2} {As}_{2}$ Salem-Sugui, S.; Ghivelder, L.; Alvarenga, A. D. Physical Review B, Vol. 82, Issue 5 https://doi.org/10.1103/PhysRevB.82.054513	journal	August 2010
Magnetization hysteresis and time decay measurements in FeSe $_{0.50}$ Te $_{0.50}$ : Evidence for fluctuation in mean free path induced pinning Das, P.; Thakur, Ajay D.; Yadav, Anil K. Physical Review B, Vol. 84, Issue 21 https://doi.org/10.1103/PhysRevB.84.214526	journal	December 2011
Influence of multiband sign-changing superconductivity on vortex cores and vortex pinning in stoichiometric high- $T_{c} {CaKFe}_{4} {As}_{4}$ Fente, Antón; Meier, William R.; Kong, Tai Physical Review B, Vol. 97, Issue 13 https://doi.org/10.1103/PhysRevB.97.134501	journal	April 2018
Evidence for mean free path fluctuation induced pinning in ${YBa}_{2}$ ${Cu}_{3}$ $O_{7}$ and ${YBa}_{2}$ ${Cu}_{4}$ $O_{8}$ films Griessen, R.; van Dalen, A. J. J. Physical Review Letters, Vol. 72, Issue 12 https://doi.org/10.1103/PhysRevLett.72.1910	journal	March 1994
Anomalous critical fields in quantum critical superconductors Putzke, C.; Walmsley, P.; Fletcher, J. D. Nature Communications, Vol. 5, Issue 1 https://doi.org/10.1038/ncomms6679	journal	December 2014
Comparative study of upper critical field $H_{c 2}$ and second magnetization peak $H_{s p}$ in hole- and electron-doped ${BaFe}_{2} {As}_{2}$ superconductor Sun, D. L.; Liu, Y.; Lin, C. T. Physical Review B, Vol. 80, Issue 14 https://doi.org/10.1103/PhysRevB.80.144515	journal	October 2009
Small anisotropy, weak thermal fluctuations, and high field superconductivity in Co-doped iron pnictide Ba(Fe1−xCox)2As2 Yamamoto, A.; Jaroszynski, J.; Tarantini, C. Applied Physics Letters, Vol. 94, Issue 6 https://doi.org/10.1063/1.3081455	journal	February 2009
Critical current density and magnetic phase diagrams of BaFe _1.29 Ru _0.71 As ₂ single crystals Sharma, Shilpam; Vinod, K.; Sundar, C. S. Superconductor Science and Technology, Vol. 26, Issue 1 https://doi.org/10.1088/0953-2048/26/1/015009	journal	November 2012
Giant increase in critical current density of K $_{x}$ Fe $_{2 - y}$ Se $_{2}$ single crystals Lei, Hechang; Petrovic, C. Physical Review B, Vol. 84, Issue 21 https://doi.org/10.1103/PhysRevB.84.212502	journal	December 2011
Scaling of pinning forces in NdBa2Cu3O7−δ superconductors Koblischka, M. R.; Higuchi, T.; Yoo, S. I. Journal of Applied Physics, Vol. 85, Issue 6 https://doi.org/10.1063/1.369666	journal	March 1999
Superconductivity at T_c ~ 14 K in Single Crystalline FeTe$_{0.61}$Se$_{0.39}$ Taen, T.; Tsuchiya, Y.; Nakajima, Y. arXiv https://doi.org/10.48550/arxiv.0906.1951	text	January 2009
Exploration of new superconductors and functional materials and fabrication of superconducting tapes and wires of iron pnictides Hosono, Hideo; Tanabe, Keiichi; Takayama-Muromachi, Eiji arXiv https://doi.org/10.48550/arxiv.1505.02240	text	January 2015
Using Gap Symmetry and Structure to Reveal the Pairing Mechanism in Fe-based Superconductors Hirschfeld, P. J. arXiv https://doi.org/10.48550/arxiv.1510.01386	text	January 2015
Hedgehog spin-vortex crystal stabilized in a hole-doped iron-based superconductor Meier, W. R.; Ding, Q. -P.; Kreyssig, A. arXiv https://doi.org/10.48550/arxiv.1706.01067	text	January 2017

Cited By (10)

Unique defect structure and advantageous vortex pinning properties in superconducting CaKFe4As4 Ishida, Shigeyuki; Iyo, Akira; Ogino, Hiraku npj Quantum Materials, Vol. 4, Issue 1 https://doi.org/10.1038/s41535-019-0165-0	journal	June 2019
Strong pinning in the hole-doped pnictide superconductor La _0.34 Na _0.66 Fe ₂ As ₂ Sundar, Shyam; Salem-Sugui, S.; Alvarenga, A. D. Journal of Applied Physics, Vol. 125, Issue 12 https://doi.org/10.1063/1.5088823	journal	March 2019
Chemical stability and superconductivity in Ag-sheathed CaKFe ₄ As ₄ superconducting tapes Cheng, Zhe; Dong, Chiheng; Huang, He Superconductor Science and Technology, Vol. 32, Issue 1 https://doi.org/10.1088/1361-6668/aaedff	journal	November 2018
Fe-based superconducting thin films—preparation and tuning of superconducting properties Hänisch, J.; Iida, K.; Hühne, R. Superconductor Science and Technology, Vol. 32, Issue 9 https://doi.org/10.1088/1361-6668/ab1c00	journal	August 2019
Effects of core density and impurities on the critical current density of CaKFe ₄ As ₄ superconducting tapes Cheng, Zhe; Liu, Shifa; Dong, Chiheng Superconductor Science and Technology, Vol. 32, Issue 10 https://doi.org/10.1088/1361-6668/ab3a87	journal	September 2019
Optimization of superconducting properties of the stoichiometric CaKFe ₄ As ₄ Singh, Shiv J.; Cassidy, Simon J.; Bristow, Matthew Superconductor Science and Technology, Vol. 33, Issue 2 https://doi.org/10.1088/1361-6668/ab58be	journal	December 2019
Enhancement of critical current density in CaKFe ₄ As ₄ single crystals through 3 MeV proton irradiation Haberkorn, N.; Xu, M.; Meier, W. R. Superconductor Science and Technology, Vol. 33, Issue 2 https://doi.org/10.1088/1361-6668/ab5f4b	journal	January 2020
Flux pinning and the vortex phase diagram in optimized CaKFe ₄ As ₄ single crystals fabricated by a one-step method Wang, Chunlei; He, Tian; Han, Qianqian Superconductor Science and Technology, Vol. 33, Issue 4 https://doi.org/10.1088/1361-6668/ab75aa	journal	February 2020
Strong pinning in the hole-doped pnictide superconductor La$_{0.34}$Na$_{0.66}$Fe$_2$As$_2$ Sundar, Shyam; Salem-Sugui,, S.; Alvarenga, A. D. arXiv https://doi.org/10.48550/arxiv.1903.04066	text	January 2019
Unique defect structure and advantageous vortex pinning properties in superconducting CaKFe4As4 Ishida, Shigeyuki; Iyo, Akira; Ogino, Hiraku arXiv https://doi.org/10.48550/arxiv.1907.04718	text	January 2019

Similar Records

Influence of multiband sign-changing superconductivity on vortex cores and vortex pinning in stoichiometric high-

T_{c} {CaKFe}_{4} {As}_{4}

Journal Article · Mon Apr 02 00:00:00 EDT 2018 · Physical Review B · OSTI ID:1556119

Fente, Anton; Meier, William R.; Kong, Tai; +5 more

Substantial reduction of the anisotropy in the critical current densities J_c of Ni-doped CaKFe₄As₄ single crystals by chemical and irradiation-induced disorder

Journal Article · Tue Feb 02 00:00:00 EST 2021 · Superconductor Science and Technology · OSTI ID:1556119

Haberkorn, N.; Xu, M.; Meier, W. R.; +4 more

Enhancement of critical current density in CaKFe₄As₄ single crystals through 3 MeV proton irradiation

Journal Article · Tue Jan 07 00:00:00 EST 2020 · Superconductor Science and Technology · OSTI ID:1556119

Haberkorn, N.; Xu, M.; Meier, W. R.; +3 more

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY

Title: Ultrahigh critical current densities, the vortex phase diagram, and the effect of granularity of the stoichiometric high-Tc superconductor CaKFe4As4

Citation Formats

References (64)

Cited By (10)

Similar Records

Related Subjects

Title: Ultrahigh critical current densities, the vortex phase diagram, and the effect of granularity of the stoichiometric high-T_c superconductor CaKFe₄As₄