Singular Vortex in Narrow Cylinders of Superfluid 3He-A Phase
Singular Vortex in Narrow Cylinders of Superfluid 3He-A Phase
复制标题
超流 3He-A 相窄圆柱体内的奇异涡旋
DOI:
10.1143/jpsj.78.114606
复制
发表时间:
2009
影响因子:
1.7
通讯作者:
K. Machida
中科院分区:
文献类型:
--
作者:
Y. Tsutsumi;K. Machida
Motivated by the on-going rotating cryostat experiments in ISSP, University of Tokyo, we explore the textures and vortices in superfluid 3 He-A phase confined in narrow cylinders, whose radii are R =50 µm and 115 µm. The calculations are based on the Ginzburg–Landau (GL) framework, which fully takes into account the orbital ( l -vector) and spin ( d -vector) degrees of freedom for chiral p -wave pairing superfluid. The GL free energy functional is solved numerically by using best known GL parameters appropriate for the actual experimental situations at P =3.2 MPa and H =21.6 mT. We identify the ground state l -vector configuration as radial disgyration (RD) texture with the polar core both at rest and low rotations and associated d -vector textures for both narrow cylinder systems under high magnetic fields. The RD which has a singularity at center changes into Mermin–Ho texture above the critical rotation speed. This is determined precisely. The consequences are compared with experimental results.
DOI:
--
发表时间:
2005
期刊:
J.Phys.Chem.Solids (in press)
影响因子:
--
作者:
Kamide;Y. 他;H.Beidenkopf;勝又紘一;T.Takagi
通讯作者:
T.Takagi
DOI:
--
发表时间:
2002
期刊:
Phys.Rev.Let 89
影响因子:
--
作者:
T.Mizushima;K.Machida;T.Kita
通讯作者:
T.Kita
DOI:
--
发表时间:
2002
期刊:
Physical Review B 66
影响因子:
--
作者:
T.Kita;T.Mizushima;K.Machida;T.Kita
通讯作者:
T.Kita