Chemical bond properties and Mossbauer spectroscopy in REBa2Cu3O7 (RE = Eu, Y)

被引：14

作者：

Gao, FM ^{[1
]}

Li, DC

He, JL

Tian, YJ

Yu, DL

Zhang, SY

机构：

[1] Yanshan Univ, Coll Mat Sci & Chem Engn, Qinghuangdao 066004, Peoples R China

[2] Chinese Acad Sci, Changchun Inst Appl Chem, Lab Rate Earth Chem & Phys, Changchun 130022, Peoples R China

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2002年 / 371卷 / 02期

关键词：

superconductivity; oxides; chemical bond; Mossbauer spectroscopy;

D O I：

10.1016/S0921-4534(01)01065-6

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By using the chemical bond theory of complex crystals, the chemical bond properties of REBa2Cu3O7 (RE = Eu, Y) were calculated. The calculated covalencies for Cu(1)-O and Cu(2)-O bond in REBa2Cu3O7 compounds are 0.41 and 0.28 respectively. Mossbauer isomer shifts of Fe-57 doped, and Sn-119 doped in REBa2Cu3O7-x were calculated by using the chemical environmental factor, h(e), defined by covalency and electronic polarizability. Four valence state tin ion and iron ion sites were identified in Fe-57 and Sn-119 doped REBa2Cu3O7-x superconductors. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：151 / 155

页数：5

共 15 条

[1] MOSSBAUER-EFFECT OF SN-119 DOPED IN HIGH-TC Y-BA-CU-O SUPERCONDUCTOR [J].

CHEN, YL ;

LI, BR ;

CHEN, A ;

XU, BF .

HYPERFINE INTERACTIONS, 1990, 55 (1-4) :1249-1255

[2]

Gao FM, 2000, CHIN J INORG CHEM, V16, P751

[3]

GAO FM, 2000, CHIN J CHEM PHYS, V13, P673

[4]

GAO FM, 2001, J CHIN RARE EARTH SO, V19, P209

[5] STRUCTURAL INVESTIGATION OF THE EUBA2CU3O7-DELTA HIGH-TC SUPERCONDUCTOR BY EU-151, SN-119, FE-57 AND CO-57 MOSSBAUER-SPECTROSCOPY [J].

KUZMANN, E ;

HOMONNAY, Z ;

NAGY, S ;

VERTES, A ;

HALASZ, I ;

GAL, M .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1992, 48 (01) :51-64

[6]

LIANG JK, 1994, PHASES RELATION CRYS, P171

[7] THE LIGAND COORDINATIONS AND VALENCIES OF THE PRIMARY IRON SITES IN YBA2CU3-XFEXOY [J].

LINES, ME ;

EIBSCHUTZ, M .

PHYSICA C, 1990, 166 (3-4) :235-247

[8] MAGNETIC-ORDERING AND SUPERCONDUCTING IN FE-DOPED 1-2-3 COMPOUNDS [J].

QIU, ZQ ;

DU, YW ;

TANG, H ;

WALKER, JC ;

MORGAN, JS ;

BRYDEN, WA .

JOURNAL OF APPLIED PHYSICS, 1988, 64 (10) :5947-5949

[9] FE-57 MOSSBAUER STUDY ON OXYGEN DESORPTION OF HIGH-TC Y-BA-CU OXIDE SUPERCONDUCTOR [J].

SEDYKH, V ;

NASU, S ;

FUJITA, FE .

SOLID STATE COMMUNICATIONS, 1988, 67 (11) :1063-1067

[10] THE CHARGE STATE OF FE-57 DOPED INTO YBA2CU3O7-X [J].

SUHARAN, S ;

JOHNSON, CE ;

JONES, DH ;

THOMAS, MF ;

DRIVER, R .

SOLID STATE COMMUNICATIONS, 1988, 67 (02) :125-127

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