Strong Anisotropy in Spin Susceptibility of Superfluid3He-B Film Caused by Surface Bound States

Yasushi Nagato, Seiji Higashitani, Katsuhiko Nagai
2009 Journal of the Physical Society of Japan  
Spin susceptibility of superfluid 3He-B film with specular surfaces is calculated. It is shown that, when the magnetic field is applied in a direction perpendiculr to the film, the suseptibility is significantly enhanced by the contribution from the surface bound states. No such enhancement is found for the magnetic field parallel to the film. A simplified model with spatially constant order parameter is used to elucidate the magnetic properties of the surface bound states. The Majorana nature of the zero energy bound state is also mentioned.
doi:10.1143/jpsj.78.123603 fatcat:xga3jmadpvbtxfhw2zy4vecihe