THERMAL-BEHAVIOR OF POSITRON LIFETIME IN METAL SUBSTITUTED OXIDE SUPERCONDUCTORS YBA2(CU1-XFEX)3O7-Y, YBA2(CU1-XNIX)3O7Y

被引：1

作者：

ISHIBASHI, S

YAMAMOTO, R

DOYAMA, M

MATSUMOTO, T

机构：

[1] NISHI TOKYO UNIV,DEPT MAT ENGN,UENOHARA,YAMANASHI 40901,JAPAN

[2] NATL RES INST MET,MEGURO KU,TOKYO 153,JAPAN

来源：

JOURNAL OF THE LESS-COMMON METALS | 1990年 / 164卷

关键词：

D O I：

10.1016/0022-5088(90)90525-O

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Positron lifetime spectra were measured on YBa2(Cu1-x Mx)3O7 - y(M = Fe, Ni) as a function of temperature between 20 K and room temperature. The positron lifetime and its thermal behavior strongly depend on the iron concentration while are less affected with the nickel substitution. Effects of heat treatments were also examined for the iron substituted specimens. The results were analyzed by the trapping model and the variation of electron distribution at the trapping center is discussed. © 1990.

引用

页码：1113 / 1120

页数：8

共 28 条

[1]

[Anonymous], 1983, POSITRON SOLID STATE

[2] POSSIBLE HIGH-TC SUPERCONDUCTIVITY IN THE BA-LA-CU-O SYSTEM [J].

BEDNORZ, JG ;

MULLER, KA .

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 64 (02) :189-193

[3] A STUDY OF POSITRON DISTRIBUTION AND ANNIHILATION CHARACTERISTICS IN YBA2CU3O7-X [J].

BHARATHI, A ;

SUNDAR, CS ;

HARIHARAN, Y .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (08) :1467-1474

[4] INHIBITION OF POSITRON TRAPPING BY CHARGE-TRANSFER IN CERAMIC SUPERCONDUCTORS [J].

BRUSA, RS ;

GRISENTI, R ;

LIU, S ;

OSS, S ;

PILLA, O ;

ZECCA, A ;

DUPASQUIER, A ;

MATACOTTA, FA .

PHYSICA C, 1988, 156 (01) :65-68

[5] POSITRON-ANNIHILATION AT DEFECTS IN SINTERED HIGH-TC PEROVSKITE SUPERCONDUCTORS [J].

CORBEL, C ;

BERNEDE, P ;

PASCARD, H ;

RULLIERALBENQUE, F ;

KORMAN, R ;

MARUCCO, JF .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 1989, 48 (04) :335-341

[6]

DORIKENSVANPRAE.L, 1989, POSITRON ANNIHILATON

[7]

HAUTORJAVI P, 1979, POSITRON SOLIDS

[8] MICRODOMAIN STRUCTURE IN YBA2(CU1-XFEX)3O7-Y OBSERVED BY ELECTRON-MICROSCOPY [J].

HIROI, Z ;

TAKANO, M ;

TAKEDA, Y ;

KANNO, R ;

BANDO, Y .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1988, 27 (04) :L580-L583

[9] POSITRON-ANNIHILATION STUDIES OF THE IRON-SUBSTITUTED OXIDE SUPERCONDUCTOR YBA2(CU1-XFEX)3O7-Y [J].

ISHIBASHI, S ;

SUENAGA, K ;

YAMAMOTO, R ;

DOYAMA, M ;

MATSUMOTO, T .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (15) :3691-3696

[10] STUDY OF SUPERCONDUCTORS WITH HIGH TRANSITION-TEMPERATURE BY POSITRON-ANNIHILATION [J].

ISHIBASHI, S ;

YAMAGUCHI, A ;

SUZUKI, Y ;

DOYAMA, M ;

KUMAKURA, H ;

TOGANO, K .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1987, 26 (05) :L688-L689

← 1 2 3 →