Stability of helical textures in /sup 3/He-A

Journal Article · Sun Jul 01 04:00:00 EDT 1979 · Phys. Rev., B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.20.303· OSTI ID:6092129

Fetter, A L

In the presence of weak uniform superflow, bulk /sup 3/He-A near T/sub c/ assumes a uniform texture with l parallel to v/sub s/. Below a characteristic temperature T/sub h/, however, the temperature dependence of the hydrodynamic free energy can induce a helical deformation. The equilibrium configuration of such helices is investigated, using Cross's weak-coupling gas model with Fermi-liquid corrections to evaluate the hydrodynamic parameters. This model predicts T/sub h/ approx. = 0.82T/sub c/ and that helical textures can be stable at all T < T/sub h/ with suitable adjustment of the apex angle and pitch.

• Research Organization: Institute of Theoretical Physics, Physics Department, Stanford University, Stanford, California 94305
• OSTI ID: 6092129
• Journal Information: Phys. Rev., B: Condens. Matter; (United States), Journal Name: Phys. Rev., B: Condens. Matter; (United States) Vol. 20:1; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CRITICAL TEMPERATURE
ENERGY
EVEN-ODD NUCLEI
FREE ENERGY
HELIUM 3
HELIUM 3 A
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NUCLEI
PHYSICAL PROPERTIES
STABLE ISOTOPES
SUPERFLUIDITY
TEMPERATURE DEPENDENCE
TEXTURE
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE