Onset of ferromagnetic exchange in adsorbed [sup 3]He films

Journal Article · Tue Nov 01 04:00:00 EST 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.50.13069· OSTI ID:6903637

Siqueira, M; Nyeki, J; Lusher, C P; Cowan, B P; Saunders, J ^[1]

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1. Millikelvin Laboratory, Department of Physics, Royal Holloway University of London, Egham, Surrey, TW200EX (United Kingdom)

Nuclear magnetic resonance experiments are reported on multilayer [sup 3]He films adsorbed on the surface of graphite. Initially the second layer exhibits antiferromagnetic exchange, which has been measured as a function of coverage. Measurements of the nuclear magnetic susceptibility and resonant frequency for coverages around the third layer promotion precisely identify the onset of ferromagnetic exchange in the film. The evolution of the structure of the film is discussed in the light of these results and previous heat-capacity and NMR data.

• OSTI ID: 6903637
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 50:17; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

665430* -- Other Topics in Quantum Fluids & Solids-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ADSORPTION
EVEN-ODD NUCLEI
EXCHANGE INTERACTIONS
FILMS
HELIUM 3
HELIUM ISOTOPES
INTERACTIONS
ISOTOPES
LIGHT NUCLEI
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
NMR SPECTRA
NUCLEI
PHYSICAL PROPERTIES
SORPTION
SPECTRA
STABLE ISOTOPES
TEMPERATURE DEPENDENCE
THIN FILMS