Nonhydrodynamic spin transport in superfluid sup 3 He

Journal Article · Mon Aug 13 04:00:00 EDT 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.65.867· OSTI ID:6506136

Bunkov, Y M; Dmitriev, V V; Markelov, A V; Mukharskii, Y M ^[1]; Einzel, D ^[2]

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1. Institute for Physical Problems, Academy of Sciences of the U.S.S.R., Moscow (USSR)
2. Walther-Meissner-Institut fuer Tieftemperaturforschung, Garching (Federal Republic of Germany)

We report the observation of two kinds of novel nonhydrodynamic spin-transport phenomena of quasiparticles in superfluid {sup 3}He-{ital B}. We find a drastic low-temperature depression of the transverse quasiparticle spin-diffusion coefficient. In addition, we have done the first measurements of the Leggett-Takagi spin-relaxation time far outside the hydrodynamic regime. The observations of spin diffusion are shown to be in quantitative agreement with a kinetic-equation approach to quasiparticle spin dynamics.

• OSTI ID: 6506136
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 65:7; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
CORRELATIONS
DATA
DIFFUSION
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HELIUM 3
HELIUM ISOTOPES
INFORMATION
ISOTOPES
LIGHT NUCLEI
NUCLEI
NUMERICAL DATA
PARTICLE PROPERTIES
PRESSURE DEPENDENCE
QUASI PARTICLES
RELAXATION
SELF-DIFFUSION
SPIN
STABLE ISOTOPES
SUPERFLUIDITY
TEMPERATURE DEPENDENCE