TEMPERATURE-DEPENDENCE OF THE SAMARIUM OXIDATION-STATE IN SMB6 AND SM1-XLAXB6

被引：65

作者：

TARASCON, JM ^{[1
]}

ISIKAWA, Y ^{[1
]}

CHEVALIER, B ^{[1
]}

ETOURNEAU, J ^{[1
]}

HAGENMULLER, P ^{[1
]}

KASAYA, M ^{[1
]}

机构：

[1] TOHOKU UNIV,FAC SCI,DEPT PHYS,SENDAI,MIYAGI 980,JAPAN

来源：

JOURNAL DE PHYSIQUE | 1980年 / 41卷 / 10期

关键词：

D O I：

10.1051/jphys:0198000410100114100

中图分类号：

学科分类号：

摘要：

The cubic lattice parameter temperature dependence of SmB//6 between 300 K and 4. 2 K as well as the X-ray absorption at the L//I//I//I edge measured in the same temperature range, give direct evidence of the average samarium valence change which goes from 2. 60 at 300 K to 2. 53 at 4. 2 K. Previous work claimed that the Sm**2** plus :Sm**3** plus ratio was temperature independent in SmB//6. As for SmB//6 a samarium valence change has been observed with decreasing temperature below 300 K in the Sm//0//. //7//5La//0//. //2//5B//6 solid solution.

引用

页码：1141 / 1145

页数：5

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