Texture of superfluid 3He probed by a Wigner solid.
The resistivity of the Wigner solid floating on the free surface of superfluid 3He has been measured in both the A and B phases down to 200 microK in the magnetic field. The resistivity in the A phase shows the asymptotic behavior to the temperature-square dependence at low temperatures. The temperature dependence is successfully explained by the uniform l[over] texture oriented normal to the surface and by the specular scattering of quasiparticles excited along l[over] vector. In the B phase, the resistivity exhibits the exponential decrease at low temperatures. The steep increase of the resistivity observed at high magnetic field is attributable to the nonuniform texture of the field-distorted order parameter induced near the surface.
Ikegami
Hiroki
H
Low Temperature Physics Laboratory, RIKEN, Hirosawa 2-1, Wako, Saitama, Japan. hikegami@riken.jp
Kono
Kimitoshi
K