Author
Listed:
- H. Q. Yuan
(Zhejiang University, Hangzhou, Zhejiang 310027, China
NHMFL, Los Alamos National Laboratory, MS E536, Los Alamos, New Mexico 87545, USA)
- J. Singleton
(NHMFL, Los Alamos National Laboratory, MS E536, Los Alamos, New Mexico 87545, USA)
- F. F. Balakirev
(NHMFL, Los Alamos National Laboratory, MS E536, Los Alamos, New Mexico 87545, USA)
- S. A. Baily
(NHMFL, Los Alamos National Laboratory, MS E536, Los Alamos, New Mexico 87545, USA)
- G. F. Chen
(Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science)
- J. L. Luo
(Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science)
- N. L. Wang
(Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Science)
Abstract
Iron-arsenic superconductors: a sense of direction Superconductivity has been observed in iron-arsenic (or iron pnictide) compounds with critical transition temperatures as high as 56 K, inviting comparison with the high-Tc copper oxides. The copper oxides have quasi-two-dimensional electronic properties, which led to speculation that extreme anisotropy (direction dependence) is a requirement for superconductivity at temperatures above 40 K. Yuan et al. report that this is not the case: the superconducting properties of (Ba,K)Fe2As2 are in fact quite isotropic. This behaviour is strikingly different from all previously known layered superconductors.
Suggested Citation
H. Q. Yuan & J. Singleton & F. F. Balakirev & S. A. Baily & G. F. Chen & J. L. Luo & N. L. Wang, 2009.
"Nearly isotropic superconductivity in (Ba,K)Fe2As2,"
Nature, Nature, vol. 457(7229), pages 565-568, January.
Handle:
RePEc:nat:nature:v:457:y:2009:i:7229:d:10.1038_nature07676
DOI: 10.1038/nature07676
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