Structure and superconductivity in FexCu1-xBa2YCu2O7+y superconductors synthesized by high pressure

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	Structure and superconductivity in FexCu1-xBa2YCu2O7+y superconductors synthesized by high pressure
	Liu, YH ; Che, GC ; Li, KQ ; Zhao, ZX ; Kou, ZQ ; Di, NL ; Cheng, ZH
刊名	SOLID STATE COMMUNICATIONS
	2005
卷号	134 期号:10 页码:711
关键词	FE-SITE OCCUPANCY THERMAL TREATMENTS CRYSTAL-STRUCTURE YBA2CU3O7-DELTA TEMPERATURE MOSSBAUER BEHAVIOR SYSTEM
ISSN号	0038-1098
通讯作者	Liu, YH (reprint author), Chinese Acad Sci, Inst Phys, Natl Lab Superconduct, POB 603, Beijing 100080, Peoples R China.
中文摘要	Comprehensive studies of X-ray diffraction, oxygen content, superconductivity and Mossbauer effect have been made on FexCu1-xBa2YCu2O7+y superconductors (0.00 <= x <= 0.70) synthesized by ambient (AM) and high pressure (HP). Results indicate that all the HP-samples have tetragonal structure, smaller lattice parameter c and unit-cell volume than the AM-samples. The studies of oxygen content, and Mossbauer spectroscopy indicate that the HP-samples have higher oxygen content, carrier concentration and average valence of Fe than the AM-samples. Moreover, for the HP-samples more Fe atoms located in Cux(x) chains have fivefold-oxygen coordination. These are important reasons for the enhancement of T-c in the HP-samples. (c) 2005 Elsevier Ltd. All rights reserved.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/53551]
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	Liu, YH,Che, GC,Li, KQ,et al. Structure and superconductivity in FexCu1-xBa2YCu2O7+y superconductors synthesized by high pressure[J]. SOLID STATE COMMUNICATIONS,2005,134(10):711.
APA	Liu, YH.,Che, GC.,Li, KQ.,Zhao, ZX.,Kou, ZQ.,...&Cheng, ZH.(2005).Structure and superconductivity in FexCu1-xBa2YCu2O7+y superconductors synthesized by high pressure.SOLID STATE COMMUNICATIONS,134(10),711.
MLA	Liu, YH,et al."Structure and superconductivity in FexCu1-xBa2YCu2O7+y superconductors synthesized by high pressure".SOLID STATE COMMUNICATIONS 134.10(2005):711.