SPECIFIC-HEAT OF X2MNSN (X = CO, NI, PD, CU), X2MNIN (X = NI, PD) AND NI2MNSB HEUSLER COMPOUNDS

被引：35

作者：

FRAGA, GLF ^{[1
]}

BRANDAO, DE ^{[1
]}

SERENI, JG ^{[1
]}

机构：

[1] CNEA, CTR ATOM BARILOCHE, RA-8400 BARILOCHE, ARGENTINA

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1991年 / 102卷 / 1-2期

关键词：

D O I：

10.1016/0304-8853(91)90287-K

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Results of low-temperature specific heat measurements (1.5-8.0 K) on X2MnSn (X = Co, Ni, Pd, Cu), X2Mnln (X = Ni, Pd) and Ni2MnSb Heusler compounds are presented. All the compounds, except the cobalt based one, exibit a lattice spectrum anomaly described by an Einstein's term (soft-phonons). For all but one compound, the experimental values of the electronic specific heat coefficients are, at least, twice as big as the theoretical estimates. For two compounds it was possible to determine the magnetic effective field on Mn nuclei.

引用

页码：199 / 207

页数：9

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