Large magnetic perturbation and solitons in superfluid /sup 3/He-A

Journal Article · Sun Aug 01 04:00:00 EDT 1982 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.26.1182· OSTI ID:6704607

Kharadze, G A; Maki, K

Two experiments on solitons in superfluid /sup 3/He-A are considered. First, a sudden change in the strength of the applied magnetic field ..delta..H>>..cap omega../..gamma.., where ..cap omega.. is the Leggett frequency, is shown to send away the d texture associated with the composite soliton, generating a pair of magnetic pulses traveling in the opposite directions with spin-wave velocities. Second, a tipping experiment in the presence of the composite soliton is considered. In particular, limiting to the case of the twist soliton, the shift in the magnetization precession frequency is calculated as a function of the tipping angle, theta. The theoretical results seem to describe the observed theta dependence quite well if a necessary change to go from the twist soliton to the splay soliton is incorporated. Furthermore, the soliton becomes intrinsically unstable for theta> or =1/2.

• Research Organization: Institute of Physics of the Georgian Academy of Sciences, Tbilissi 380077, Union of Soviet Socialist Republics
• OSTI ID: 6704607
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 26:3; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

640450* -- Fluid Physics-- Superfluidity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
EVEN-ODD NUCLEI
HELIUM 3
HELIUM 3 A
HELIUM ISOTOPES
INSTABILITY
ISOTOPES
LIGHT NUCLEI
MAGNETIC FIELDS
NUCLEI
PULSES
QUASI PARTICLES
SOLITONS
SPIN WAVES
STABLE ISOTOPES
SUPERFLUIDITY