OBSERVATION OF A TOPOLOGICAL TRANSITION IN THE HE-3-A VORTICES

被引：22

作者：

PEKOLA, JP ^{[1
]}

TORIZUKA, K ^{[1
]}

MANNINEN, AJ ^{[1
]}

KYYNARAINEN, JM ^{[1
]}

VOLOVIK, GE ^{[1
]}

机构：

[1] LD LANDAU INST THEORET PHYS,MOSCOW 117334,USSR

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.65.3293

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Vortices in He-3-A in low magnetic fields (H less-than-or-equal-to 20 mT) have been studied by ultrasonics. A first-order phase change between two vortex types, with dissimilar sound absorption, has been found. The magnetic field at the transition is on the order of the dipolar field H(d). The observed change occurs between continuous vortex textures with different topological charges in the d field (where d is the magnetic anisotropy vector).

引用

页码：3293 / 3296

页数：4

共 9 条

[1] TEXTURES IN ROTATING SUPERFLUID HE-3-A [J].