Supersolid order from disorder: Hard-core bosons on the triangular lattice

被引：219

作者：

Melko, RG ^{[1
]}

Paramekanti, A

Burkov, AA

Vishwanath, A

Sheng, DN

Balents, L

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[3] Calif State Univ Northridge, Dept Phys & Astron, Northridge, CA 91330 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 12期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.95.127207

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the interplay of Mott localization, geometric frustration, and superfluidity for hard-core bosons with nearest-neighbor repulsion on the triangular lattice. For this model at half filling, we demonstrate that superfluidity survives for arbitrarily large repulsion, and that diagonal solid order emerges in the strongly correlated regime from an order-by-disorder mechanism. This is thus an unusual example of a stable supersolid phase of hard-core lattice bosons at a commensurate filling.

引用

页数：4

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