THERMAL-EXPANSION DERIVED LATTICE INSTABILITIES NEAR MAXIMUM TC IN HIGH-TC CUPRATES

被引：2

作者：

LANG, M

KURSCH, R

STEGLICH, F

WOLF, T

MAENO, Y

KUMAGAI, K

HIDAKA, Y

机构：

[1] KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH, W-7500 KARLSRUHE 1, GERMANY

[2] HIROSHIMA UNIV, HIROSHIMA 730, JAPAN

[3] HOKKAIDO UNIV, SAPPORO, HOKKAIDO 060, JAPAN

[4] NIPPON TELEGRAPH & TEL PUBL CORP, IBARAKI ELECT COMMUN LABS, TOKAI, IBARAKI 31911, JAPAN

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1991年 / 185卷 / pt 2期

关键词：

D O I：

10.1016/0921-4534(91)91897-D

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

For the "214" cuprates, La2CuO4+delta, La2-xMxCuO4 (M = Sr, Ba) and Nd1.85Ce0.15CuO3.998, thermal expansion measurements reveal lattice instabilities at T1 = 31K and T2 = 36K. T2 coincides with T(c)max found upon 15 at% Sr doping. For YBa2Cu3O6.5 (T(c) = 49K) a lattice instability occurs at T = 90K, again close to T(c)max.

引用

页码：1347 / 1348

页数：2

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