Nature of the spin-singlet ground state in CaCuGe2O6 -: art. no. 054426

被引：26

作者：

Valentí, R ^{[1
]}

Saha-Dasgupta, T

Gros, C

机构：

[1] Univ Saarland, Fak 7, D-66041 Saarbrucken, Germany

[2] SN Bose Natl Ctr Basic Sci, Salt Lake City 700098, Kolkata, India

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.66.054426

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate by means of ab initio electronic structure analysis and quantum Monte Carlo calculations the scenario where longer-ranged magnetic interactions dominate over short-ranged interactions in the physical description of compounds. This question is discussed, in particular, for the case of CaCuGe2O6 which shows a spin-singlet behavior induced by third-nearest-neighbor copper pairs.

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页码：544261 / 544264

页数：4

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