@article{f0c9ce2115794fcd83e12f6bc7320e84,
title = "High, magnetic field independent critical currents in (Ba,K)Fe 2As 2 crystals",
abstract = "Each discovery of a new high temperature superconductor drives the expectation that advanced engineering of materials defect structures will enable effective vortex pinning and high values of the electrical current density. Here, we demonstrate that single crystals of the iron-based superconductor Ba 0.6K 0.4Fe 2As 2 with T c = 37.5 K can accommodate an unprecedented large concentration of strong-pinning defects in the form of discontinuous nm-sized nanorods with no degradation of the superconducting transition temperature. At a temperature of 5 K, we find a critical current density of 5 MA/cm 2 that is magnetic field independent in fields up to 7 T.",
author = "L. Fang and Y. Jia and C. Chaparro and G. Sheet and H. Claus and Kirk, {M. A.} and Koshelev, {A. E.} and U. Welp and Crabtree, {G. W.} and Kwok, {W. K.} and S. Zhu and Hu, {H. F.} and Zuo, {J. M.} and Wen, {H. H.} and B. Shen",
note = "Funding Information: This work was supported by the Center for Emergent Superconductivity, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences (L.F., Y.J., C.C., H.C., A.E.K., G.W.C., and W.K.K.) and by the Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357 (G.S., M.A.K., and U.W.). The operation of the ATLAS facility was supported by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357. The work in China was supported by the NSF of China, the MOST of China (2011CBA00102 and 2012CB821403) and PAPD.",
year = "2012",
month = jul,
day = "2",
doi = "10.1063/1.4731204",
language = "English (US)",
volume = "101",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "1",
}