OXYGEN ISOTOPE EFFECT IN ND1.85CE0.15CUO4

被引：16

作者：

BATLOGG, B ^{[1
]}

CHEONG, SW ^{[1
]}

THOMAS, GA ^{[1
]}

COOPER, SL ^{[1
]}

RUPP, LW ^{[1
]}

RAPKINE, DH ^{[1
]}

COOPER, AS ^{[1
]}

机构：

[1] UNIV ILLINOIS,CHAMPAIGN,IL 61820

来源：

PHYSICA C | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)91916-R

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Starting from high quality Nd1.85Ce0.15CuO4 polycrystalline samples with a T(c) of 24K, we have exchanged approximately 85% of O-16 by O-18. The magnetically measured T(c) was found to change by less than 0.1K, equivalent to an oxygen-isotope exponent o-alpha less-than-or-equal-to 0.05. Thus, the isotope effect is small for all classes of cuprate superconductors when T(c) is optimized, irrespective of Cu-O coordination and conduction type.

引用

页码：1385 / 1386

页数：2

共 6 条

[1] NONZERO ISOTOPE EFFECT IN LA1.85SR0.15CUO4 [J].

BATLOGG, B ;

KOUROUKLIS, G ;

WEBER, W ;

CAVA, RJ ;

JAYARAMAN, A ;

WHITE, AE ;

SHORT, KT ;

RUPP, LW ;

RIETMAN, EA .

PHYSICAL REVIEW LETTERS, 1987, 59 (08) :912-914

[2] OXYGEN ISOTOPE EFFECT AND STRUCTURAL PHASE-TRANSITIONS IN LA2CUO4-BASED SUPERCONDUCTORS [J].

CRAWFORD, MK ;

FARNETH, WE ;

MCCARRON, EM ;

HARLOW, RL ;

MOUDDEN, AH .

SCIENCE, 1990, 250 (4986) :1390-1394

[3] OBSERVATION OF AN OXYGEN ISOTOPE SHIFT IN THE SUPERCONDUCTING TRANSITION-TEMPERATURE OF LA1.85SR0.15CUO4 [J].

FALTENS, TA ;

HAM, WK ;

KELLER, SW ;

LEARY, KJ ;

MICHAELS, JN ;

STACY, AM ;

LOYE, HCZ ;

MORRIS, DE ;

BARBEE, TW ;

BOURNE, LC ;

COHEN, ML ;

HOEN, S ;

ZETTL, A .

PHYSICAL REVIEW LETTERS, 1987, 59 (08) :915-918

[4]

FRANCK JP, 1991, PHYSICA B, V169

[5]

MULLER KA, 1990, Z PHYSIK

[6]

SCHWARZ RB, 1991, STUDIES HIGH TEMPERA, V8

← 1 →