Magnetic excitations in superfluid /sup 3/He

Journal Article · Sat May 01 04:00:00 EDT 1976 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00116926· OSTI ID:7263258

Maki, K; Ebisawa, H

Localized magnetic excitations (solitons) in superfluid /sup 3/He are studied theoretically. In the A phase, a calculation is made of the dispersion of solitons in both the longitudinal and the transversal configurations, in the B phase we limit ourselves to the longitudinal soliton in the Leggett configuration. In the wall pinned configuration of the B phase we show that the magnetic perturbation propagates as spin wave. The effects of the spin-diffusion term on solitons as well as spin waves are considered. The soliton velocity decreases exponentially in time owing to the spin-diffusion term with a characteristic time GAMMA/sup -1/(identical with (3)(c/sup 2//D..cap omega../sup 2/)), where D is the spin-diffusion constant, ..cap omega.. is the Leggett frequency, and c is the spin-wave velocity.

• Research Organization: Univ. of Southern California, Los Angeles
• OSTI ID: 7263258
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 23:3/4; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIFFUSION
EVEN-ODD NUCLEI
HELIUM 3
HELIUM 3 A
HELIUM 3 B
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC PROPERTIES
NUCLEI
ONE-DIMENSIONAL CALCULATIONS
PHYSICAL PROPERTIES
QUASI PARTICLES
SOLITONS
SPIN WAVES
STABLE ISOTOPES
VELOCITY