Equal-Spin Pairing State of Superfluid ${}^3$He in Aerogel

Abstract

The equal-spin pairing (ESP) state, the so-called A-like phase, of superfluid ${}^3$He in aerogels is studied theoretically in the Ginzburg-Landau (GL) region by examining thermodynamics, and the resulting equilibrium phase diagram is mapped out. We find that, among the ABM, planar, and robust pairing states, the ABM state with presumably quasi long-ranged superfluid order is the best candidate of the A-like phase with a strange lowering of the polycritical point (PCP) observed experimentally.

arXiv comment4 pages, 1 figure, one reference added, accepted for publication in Phys. Rev. B

References in corpus (7)

• Elastic theory of flux lattices in presence of weak disorder
• Models for Superfluid ${}^3$He in Aerogel
• Quasi-long-range order in nematics confined in random porous media
• Glass state of superfluid 3He-A in aerogel
• Spin-Glass Phase in the Random Temperature Ising Ferromagnet
• Order parameter of A-like phase of ${}^3$He in aerogel
• Strong-Coupling Effects in "Dirty" Superfluid ${}^{3}He$

Cited by in corpus (9)

• On Larkin-Imry-Ma State of 3He-A in Aerogel
• Pairing States of Superfluid 3He in Uniaxially Anisotropic Aerogel
• Anisotropic Strong Coupling Effects on Superfluid 3He in Aerogels - Conventional Spin-Fluctuation Approach -
• Stripe order in superfluid 3He confined in narrow cylinders
• The Effect of Magnetic Impurities on Superfluid ${}^3$He in Aerogel
• Superfluid ${}^3$He in globally isotropic random media
• Surface scattering effect and the stripe order in films of the superfluid ${}^3$He B phase
• Ultrasound attenuation and a P-B-T phase diagram of superfluid 3He in 98% aerogel
• Strong Coupling Correction in Superfluid ${}^3$He in Aerogel