ITINERANT ANTIFERROMAGNETISM IN FRUSTRATED LATTICES

被引：0
作者：
LACROIX, C
机构：
[1] Laboratoire Louis Néel, C.N.R.S., Grenoble-Cedex 9, 38042
来源：
PHYSICA SCRIPTA | 1993年 / T49A卷
关键词：
D O I：
10.1088/0031-8949/1993/T49A/048
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study some effects due to frustration in itinerant systems: we show that new ordered magnetic phases, in which magnetic and non-magnetic sites are present, can be stabilized in frustrated systems close to the magnetic-nonmagnetic instability; simple examples of such phases on the triangular lattice have been studied within the Hubbard model. In the paramagnetic phase we show that large values of the specific heat coefficient are obtained due to enhancement of the spin fluctuations. Comparison with experimental results on the RMn(2) compounds is presented.
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页码：274 / 277
页数：4
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