Effect of gap distortion on the field splitting of collective modes in superfluid /sup 3/He-B

Journal Article · Mon Apr 04 04:00:00 EST 1983 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.50.1066· OSTI ID:6033615

Schopohl, N; Warnke, M; Tewordt, L

The field splitting of the real squashing, J = 2, mode in /sup 3/He-B is shown to become highly nonlinear at large fields as a result of the ellipsoidal deformation of the energy gap. This leads to crossings of the J/sub z/ = +1 and J/sub z/ = 0 levels with the J/sub z/ = +2 level. The crossing points depend sensitively on the couplings between the J = 2, 1, and 0 modes. The theory is in good agreement with the observed field evolution and level crossing as measured recently by Shivaram et al.

• Research Organization: Institut fuer Fest- p koerperforschung der Kernforschungsanlage Juelich, D-5170 Juelich, West Germany
• OSTI ID: 6033615
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 50:14; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COLLECTIVE EXCITATIONS
COUPLING
DEFORMATION
ENERGY GAP
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXCITATION
HELIUM 3
HELIUM 3 B
HELIUM ISOTOPES
ISOTOPES
LIGHT NUCLEI
NONLINEAR PROBLEMS
NUCLEI
STABLE ISOTOPES
SUPERFLUIDITY
ZEEMAN EFFECT