Magnetic resonance within vortex cores in the B phase of superfluid ${}^3$He

Abstract

We investigate a magnetic susceptibility of vortices in the B phase of multicomponent triplet superfluid ${}^3$He focusing on a contribution of bound fermionic states localized within vortex cores. Several order parameter configurations relevant to different types of quantized vortices in ${}^3$He 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.

References in corpus (4)

• Superconducting density of states and vortex cores of 2H-NbS2
• Fusion rules and vortices in $p_x+i{p}_y$ superconductors
• Spectrum of bound fermion states on vortices in ${}^3$He-B
• Electronic structure of edge and vortex states in chiral mesoscopic superconductor

Cited by in corpus (1)

• Microscopic description of axisymmetric vortices in ${}^3{P}_2$ superfluids