Heavy-fermion behavior of the spinel-based transition-metal oxide LiV2O4
Heavy-fermion behavior of the spinel-based transition-metal oxide LiV2O4
复制标题
尖晶石基过渡金属氧化物LiV2O4的重费米子行为
DOI:
10.1103/physrevb.67.033105
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发表时间:
2002
影响因子:
3.7
通讯作者:
Erwin Müller
中科院分区:
文献类型:
--
作者:
M. Laad;L. Craco;Erwin Müller
Motivated by the heavy-fermion Fermi-liquid (HFFL) features observed at low T in the spinel LiV 2 O 4 , we consider a material-specific model that includes aspects of the local quantum chemistry, the geometrically frustrated lattice structure, and strong correlations in a single approach. In particular, we show how geometrical frustration (GF) gives rise to a crossover scale, T*«J, the intersite (AF) exchange, below which the metallic system shows HFFL features. Our scenario is a specific realization of the importance of GF effects in driving HFFL behavior in LiV 2 O 4 , and provides a natural understanding of various puzzling features observed experimentally.
影响因子:
2.7
作者:
Anisimov, VI;Poteryaev, AI;Kotliar, G
通讯作者:
Kotliar, G