Published 1975
| Version v1
Book
Four-spin exchange in bcc 3He
Creators
- 1. Cornell Univ., Ithaca, N.Y. (USA). Lab. of Atomic and Solid State Physics
Description
The results of a Monte-Carlo calculation using self-consistent phonons indicates that a significant four-spin term must be added to the Heisenberg exchange Hamiltonian. The predictions of the mean-field approximation are sketched in which the exchange Hamiltonian reduces to a Heisenberg nearest-neighbour Hamiltonian with a temperature-dependent exchange frequency J(T) depending on a thermal average of the scalar product of the nearest-neighbour spins. (Auth.)
Additional details
Publishing Information
- Publisher
- North Holland Publishing Company.
- Imprint Place
- Amsterdam, The Netherlands
- ISBN
- 0720493021
- Imprint Title
- Low temperature physics
- Imprint Pagination
- v. 1 p. 507-508.
Conference
- Title
- 14. international conference on low temperature physics.
- Dates
- 14 Aug 1975.
- Place
- Otaniemi, Finland.
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 7235407
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BCC LATTICES; HAMILTONIANS; HEISENBERG MODEL; HELIUM 3; PHONONS; SOLIDS; SPIN EXCHANGE; TEMPERATURE DEPENDENCE; ULTRALOW TEMPERATURE
- Descriptors DEC
- CRYSTAL LATTICES; CRYSTAL MODELS; CRYSTAL STRUCTURE; CUBIC LATTICES; EVEN-ODD NUCLEI; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; NUCLEI; QUANTUM OPERATORS; QUASI PARTICLES; STABLE ISOTOPES