NOVEL MAGNETIC-STRUCTURE OF A VORTEX LATTICE IN ADSORBED HE-3 FILMS

被引：24

作者：

MACHIDA, K

FUJITA, M

机构：

[1] KYOTO UNIV,DEPT PHYS,KYOTO 606,JAPAN

[2] UNIV TSUKUBA,INST MAT SCI,TSUKUBA 305,JAPAN

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 04期

关键词：

D O I：

10.1103/PhysRevB.42.2673

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Stimulated by a recent finding of a sharp specific-heat anomaly at 2.5 mK in a second layer of He3 adsorbed on Grafoil by Greywall et al., we studied a lattice-gas model or Hubbard model on a triangular lattice. We found a novel type of magnetic ordering of a vortex lattice, which is noncollinear with triple Q wave vectors and holds threefold symmetry, for nearly half fillings. The size of the unit cell varies with He3 coverages. This is a generic periodic pattern for neatly accommodating defects always present in an experiment. © 1990 The American Physical Society.

引用

页码：2673 / 2676

页数：4

共 21 条

[1]

ABRAHAM F, UNPUB

[2] CALCULATION OF EXCHANGE FREQUENCIES IN BCC HE-3 WITH THE PATH-INTEGRAL MONTE-CARLO METHOD [J].