STUDY ON COPPER VALENCY OF HIGH-TC SUPERCONDUCTOR YBA2CU3O7-Y BY HIGH-TEMPERATURE X-RAY ABSORPTION-SPECTROSCOPY

被引：27

作者：

IWAZUMI, T

NAKAI, I

IZUMI, M

OYANAGI, H

SAWADA, H

IKEDA, H

SAITO, Y

ABE, Y

TAKITA, K

YOSHIZAKI, R

机构：

[1] UNIV TSUKUBA,DEPT CHEM,SAKURA,IBARAKI 305,JAPAN

[2] ELECTROTECH LAB,SAKURA,IBARAKI 305,JAPAN

[3] UNIV TSUKUBA,INST APPL PHYS,SAKURA,IBARAKI 305,JAPAN

[4] UNIV TSUKUBA,CTR CRYOGEN,SAKURA,IBARAKI 305,JAPAN

[5] UNIV TSUKUBA,INST MAT SCI,SAKURA,IBARAKI 305,JAPAN

[6] TOKYO UNIV MERCANTILE MARINE,FAC MERCANTILE MARINE,DEPT PHYS,KOTO KU,TOKYO 135,JAPAN

来源：

SOLID STATE COMMUNICATIONS | 1988年 / 65卷 / 03期

关键词：

CRYSTALS - Physical Properties - SPECTROSCOPY; X-RAY - YTTRIUM COMPOUNDS;

D O I：

10.1016/0038-1098(88)90890-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The X-ray absorption spectra of the Cu K-edge have been obtained for a high-T//c superconductor YBa//2Cu//3O//7// minus //y by in-situ high temperature measurements between room temperature and 600 degree C and for quenched samples prepared by rapid cooling from various temperatures up to 880 degree C. The results indicate that the copper valency is predominantly 2 plus and the monovalent state appears as the oxygen contents decrease with increasing temperature. The Cu K-edge X-ray absorption spectra of lanthanide compounds with oxygen-deficient triperovskite structure LnBa//2Cu//3O//7// minus //y pounds with oxygen-deficient triperovskite structure, LnBa//2Cu//3O//7// minus //y (Ln equals Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb or Lu) were also reported.

引用

页码：213 / 217

页数：5

共 30 条

[1] DETERMINATION OF VALENCE OF CU IN SUPERCONDUCTING LA2-X(SR,BA)XCUO4 [J].

ALP, EE ;

SHENOY, GK ;

HINKS, DG ;

CAPONE, DW ;

SODERHOLM, L ;

SCHUTTLER, HB ;

GUO, J ;

ELLIS, DE ;

MONTANO, PA ;

RAMANATHAN, M .

PHYSICAL REVIEW B, 1987, 35 (13) :7199-7202

[2] ISOTOPE EFFECT IN THE HIGH-TC SUPERCONDUCTORS BA2YCU3O7 AND BA2EUCU3O7 [J].

BATLOGG, B ;

CAVA, RJ ;

JAYARAMAN, A ;

VANDOVER, RB ;

KOUROUKLIS, GA ;

SUNSHINE, S ;

MURPHY, DW ;

RUPP, LW ;

CHEN, HS ;

WHITE, A ;

SHORT, KT ;

MUJSCE, AM ;

RIETMAN, EA .

PHYSICAL REVIEW LETTERS, 1987, 58 (22) :2333-2336

[3] SEARCH FOR ISOTOPE EFFECT IN SUPERCONDUCTING Y-BA-CU-O [J].

BOURNE, LC ;

CROMMIE, MF ;

ZETTL, A ;

LOYE, HCZ ;

KELLER, SW ;

LEARY, KL ;

STACY, AM ;

CHANG, KJ ;

COHEN, ML ;

MORRIS, DE .

PHYSICAL REVIEW LETTERS, 1987, 58 (22) :2337-2339

[4] EMPIRICAL PARAMETERS FOR CALCULATING CATION-OXYGEN BOND VALENCES [J].

BROWN, ID ;

WU, KK .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1976, 32 (JUL15) :1957-1959

[5]

CAVA RJ, UNPUB PHYS REV

[6] STRUCTURE AND CRYSTAL-CHEMISTRY OF THE HIGH-TC SUPERCONDUCTOR YBA2CU3O7-X [J].

DAVID, WIF ;

HARRISON, WTA ;

GUNN, JMF ;

MOZE, O ;

SOPER, AK ;

DAY, P ;

JORGENSEN, JD ;

HINKS, DG ;

BENO, MA ;

SODERHOLM, L ;

CAPONE, DW ;

SCHULLER, IK ;

SEGRE, CU ;

ZHANG, K ;

GRACE, JD .

NATURE, 1987, 327 (6120) :310-312

[7] CRYSTALLOGRAPHIC DESCRIPTION OF PHASES IN THE Y-BA-CU-O SUPERCONDUCTOR [J].

HAZEN, RM ;

FINGER, LW ;

ANGEL, RJ ;

PREWITT, CT ;

ROSS, NL ;

MAO, HK ;

HADIDIACOS, CG ;

HOR, PH ;

MENG, RL ;

CHU, CW .

PHYSICAL REVIEW B, 1987, 35 (13) :7238-7241

[8]

HERMAN F, IBM RES REPORT

[9] HIGH TRANSITION-TEMPERATURE SUPERCONDUCTOR - Y-BA-CU OXIDE [J].

HIKAMI, S ;

HIRAI, T ;

KAGOSHIMA, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1987, 26 (04) :L314-L315

[10] CORRELATION OF LAYERED STRUCTURE AND SUPERCONDUCTIVITY IN (LA, Y)-BA-CU-O SYSTEM [J].

IWAZUMI, T ;

YOSHIZAKI, R ;

SAWADA, H ;

SAITO, Y ;

IKEDA, H ;

ABE, Y ;

MATSUURA, E .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1987, 26 :1065-1066

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