Orbital-flop transition of superfluid ³He in anisotropic silica aerogel.

ABSTRACT: Superfluid ³He is a paradigm for odd-parity Cooper pairing, ranging from neutron stars to uranium-based superconducting compounds. Recently it has been shown that ³He, imbibed in anisotropic silica aerogel with either positive or negative strain, preferentially selects either the chiral A-phase or the time-reversal-symmetric B-phase. This control over basic order parameter symmetry provides a useful model for understanding imperfect unconventional superconductors. For both phases, the orbital quantization axis is fixed by the direction of strain. Unexpectedly, at a specific temperature T_x, the orbital axis flops by 90^∘, but in reverse order for A and B-phases. Aided by diffusion limited cluster aggregation simulations of anisotropic aerogel and s

SUBMITTER: Nguyen MD 

PROVIDER: S-EPMC10764773 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature