Magnetic resonance within vortex cores in the B phase of superfluid He-3

Article

关键词: SCANNING-TUNNELING-MICROSCOPE;    BOUND FERMION STATES;    MUTUAL FRICTION;    II SUPERCONDUCTORS;    QUANTIZED VORTICES;    LOW-TEMPERATURES;    DYNAMICS;    FLOW;   

DOI  :  10.1103/PhysRevB.82.094507

来源: SCIE

【 摘 要 】

We investigate a magnetic susceptibility of vortices in the B phase of multicomponent triplet superfluid He-3 focusing on a contribution of bound fermionic states localized within vortex cores. Several order-parameter configurations relevant to different types of quantized vortices in He-3 B are considered. It is shown quite generally that an ac magnetic susceptibility has a sharp peak at the frequency corresponding to the energy of interlevel spacing in the spectrum of bound fermions. We suggest that measuring of a magnetic resonance within vortex cores can provide a direct probe of a discrete spectrum of bound vortex-core excitations.

【 授权许可】

Free