Low temperature crystal structure and large lattice discontinuity at T-c in superconducting FeTeOx films
文献类型:期刊论文
作者 | Narangammana, LK ; Liu, X ; Nie, YF ; Rueckert, FJ ; Budnick, JI ; Hines, WA ; Gu, G ; Wells, BO |
刊名 | APPLIED PHYSICS LETTERS
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出版日期 | 2013 |
卷号 | 103期号:10 |
ISSN号 | 0003-6951 |
通讯作者 | Nie, YF (reprint author), Cornell Univ, Dept Phys, Lab Atom & Solid State Phys, Ithaca, NY 14853 USA. |
中文摘要 | We report a high resolution x-ray diffraction study of the crystal structure of superconducting FeTeOx films. The crystal symmetry of FeTeOx matches the parent FeTe, unlike most iron-based superconductors. However, at the superconducting transition there is a large change in the c-axis lattice parameter. Such a discontinuity in the thermal expansion is known in normal-to-superconducting phase transitions, but here the effect is far larger than for other iron-based superconductors. Following the typical analysis of such a discontinuity in thermal expansion using the Ehrenfest-relation leads to a prediction of a large enhancement of T-c in strained FeTeOx films. (C) 2013 AIP Publishing LLC. |
资助信息 | U.S. DOE [DE-FG02-00ER45801]; office of Science, Office of Basic Energy Sciences, U.S. Department of Energy [DE-AC02-98CH10886] |
语种 | 英语 |
公开日期 | 2014-01-16 |
源URL | [http://ir.iphy.ac.cn/handle/311004/57171] ![]() |
专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
推荐引用方式 GB/T 7714 | Narangammana, LK,Liu, X,Nie, YF,et al. Low temperature crystal structure and large lattice discontinuity at T-c in superconducting FeTeOx films[J]. APPLIED PHYSICS LETTERS,2013,103(10). |
APA | Narangammana, LK.,Liu, X.,Nie, YF.,Rueckert, FJ.,Budnick, JI.,...&Wells, BO.(2013).Low temperature crystal structure and large lattice discontinuity at T-c in superconducting FeTeOx films.APPLIED PHYSICS LETTERS,103(10). |
MLA | Narangammana, LK,et al."Low temperature crystal structure and large lattice discontinuity at T-c in superconducting FeTeOx films".APPLIED PHYSICS LETTERS 103.10(2013). |
入库方式: OAI收割
来源:物理研究所
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