Comment on the coupling of zero sound to the J = 1[sup [minus]] modes of [sup 3]He-B

Journal Article · Mon Mar 01 04:00:00 EST 1993 · Journal of Low Temperature Physics; (United States)

DOI:https://doi.org/10.1007/BF00681885· OSTI ID:6604210

McKenzie, R H; Sauls, J A ^[1]

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1. Northwestern Univ., Evanston, IL (United States)

Features in the zero sound attenuation near the pair-breaking edge in superfluid [sup 3]He-B have been observed in large magnetic fields. Schopohl and Tewordt claim that the J = 1[sup [minus]], M = [+-] 1 orderparameter collective modes couple to zero sound as a result of the distortion of the equilibrium order parameter by a magnetic field; they identify the new features with these modes. However, the authors show that, when the effect of gap distortion on the collective modes is properly taken into account, the collective modes equations of Schopohl and Tewordt yield no direct coupling of zero sound to the J = 1[sup [minus]] modes. Thus, the identification of the absorption features reported by Ling, Saunders, and Dobbs near the pair-breaking edge with the J = 1[sup [minus]] modes is not clearly established.

• OSTI ID: 6604210
• Journal Information: Journal of Low Temperature Physics; (United States), Journal Name: Journal of Low Temperature Physics; (United States) Vol. 90:5-6; ISSN JLTPAC; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

665420* -- Superfluidity-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
ATTENUATION
COUPLING
ENERGY-LEVEL TRANSITIONS
EQUILIBRIUM
EVEN-ODD NUCLEI
EXCITATION
HELIUM 3
HELIUM 3 B
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC FIELDS
NUCLEI
SORPTION
STABLE ISOTOPES
SUPERFLUIDITY
WAVE PROPAGATION
ZERO SOUND