Effect of gap distortion on collective modes in /sup 3/He-B

Journal Article · Mon Oct 01 04:00:00 EDT 1984 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.30.4060· OSTI ID:6297980

Brusov, P N; Popov, V N

We investigate the influence of gap distortion, caused by the dipole interaction or by magnetic or electric fields, on the order-parameter collective modes in /sup 3/He-B by the method of continual integration. The dipole-interaction-induced gap distortion splits the pair breaking, squashing, and real squashing modes at zero momentum q. Furthermore, a branch crossing of these modes with different J/sub z/ appears at nonzero q. Electric and magnetic fields also produce gap distortion with similar consequences.

• Research Organization: Low Temperature Laboratory, Helsinki University of Technology, SF-02150 Espoo 15, Finland
• OSTI ID: 6297980
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 30:7; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COLLECTIVE EXCITATIONS
COUPLING
DIPOLES
ELECTRIC FIELDS
ENERGY-LEVEL TRANSITIONS
EVEN-ODD NUCLEI
EXCITATION
HELIUM 3
HELIUM 3 B
HELIUM ISOTOPES
INTEGRALS
ISOTOPES
LIGHT NUCLEI
MAGNETIC FIELDS
MULTIPOLES
NUCLEI
ORDER PARAMETERS
STABLE ISOTOPES
SUPERFLUIDITY