Substitution experiments on superconducting La2C2X2 (X=Cl, Br, I)

被引：7

作者：

Ahn, K ^{[1
]}

Mattausch, H ^{[1
]}

Simon, A ^{[1
]}

机构：

[1] MAX PLANCK INST FESTKORPERFORSCH,D-70569 STUTTGART,GERMANY

来源：

ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE | 1997年 / 623卷 / 04期

关键词：

superconductivity; rare earth metal carbide halides; susceptibility; CARBIDE;

D O I：

10.1002/zaac.19976230197

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The layered carbide bromide La2C2Br2 becomes superconducting at 6.2 K. We studied the matrix effect on T-c due to (isoelectronic) halogen substitution. T-c increases with the amount of substitution by chlorine to a maximum value of 7.2 K, and it decreases when Br- is partially substituted by I-. La2C2I2 itself is non-superconducting down to 2 K. However, substitution of I- by 10% Cl- leads to superconductivity at 2.2 K.

引用

页码：619 / 622

页数：4

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