Topics in physics of superfluid /sup 3/He films

Thesis/Dissertation · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5613562

Tesanovic, Z B

A study was made of the dipolar and magnetic orientational effects in two-dimensional superfluid /sup 3/He films. The stable phases are found and the continuous-wave nuclear magnetic resonance spectrum (cw NMR) was calculated for these phases. Two thickness regimes are considered: thickness comparable to the interparticle separation, and thickness much larger than the interparticle separation but smaller than the superfluid coherence length. The form of the dipole Hamiltonian is found to be similar for both regimes, but numerical differences in coefficients of various terms in some cases lead to qualitatively different results. Remarkable differences exist in the NMR spectrum of the two phases of interest (Anderson-Brinkman-Morel and Balian-Werthamer types of states) and two thickness regimes. From the results of the calculation it follows that the cw NMR is an excellent diagnostic tool for the pairing state in films, as it is in the bulk. Quantum size effects in thin (thickness less than the coherence length but much larger than the interparticle separation) films of superfluid /sup 3/He were studied also.

• Research Organization: Minnesota Univ., Minneapolis (USA)
• OSTI ID: 5613562
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COHERENCE LENGTH
DIMENSIONS
EVEN-ODD NUCLEI
FILMS
FUNCTIONS
HAMILTONIAN FUNCTION
HELIUM 3
HELIUM ISOTOPES
ISOTOPES
LENGTH
LIGHT NUCLEI
NMR SPECTRA
NUCLEI
PHASE STUDIES
SPECTRA
STABLE ISOTOPES
SUPERFLUIDITY