Quantum-disordered antiferromagnets on random lattices

被引：0
|
作者：
Roscilde, Tommaso [1 ]
Yu, Rong [1 ]
Haas, Stephan [1 ]
机构：
[1] Univ Southern Calif, Dept Phys & Astron, Los Angeles, CA 90089 USA
来源：
LOW TEMPERATURE PHYSICS, PTS A AND B | 2006年 / 850卷
关键词：
quantum magnets; percolation; spin liquids; localization;
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
We report on the non-trivial interplay between geometric randomess and quantum fluctuations in two-dimensional S = 1/2 Heisenberg antiferromagnets (AFs), studied by quantum Monte Carlo. The case of the inhomogeneously bond-diluted square lattice AF in zero field and of the site-diluted bilayer AF in a finite magnetic field are emblematic examples of randomness-induced quantum-disordered phases on percolated lattices. These phases display unconventional properties, being gapless but with a finite correlation length.
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页码：1073 / +
页数：2
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