SPIN-PEIERLS INSTABILITY IN PER(2) [M(MNT)2] COMPOUNDS PROBED BY SPECIFIC-HEAT

被引:11
作者
BONFAIT, G
MATOS, MJ
HENRIQUES, RT
ALMEIDA, M
机构
[1] ICEN, Sacavem
来源
JOURNAL DE PHYSIQUE IV | 1993年 / 3卷 / C2期
关键词
D O I
10.1051/jp4:1993250
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Specific heat measurements on Per2[M(mnt)2] compounds with M=Pt and Au are reported. An anomaly was found in the Pt compound, ascribed to the magnetic ordering of the Pt(mnt)2 chains as in the Spin-Peierls transition. The comparison of the two compounds enabled a precise determination of the magnetic specific heat. Results above the transition temperature are better fitted by the Ising model rather by the Bonner-Fisher calculations on the Heisenberg model.
引用
收藏
页码:251 / 254
页数:4
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