๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Spin-lattice models for the solid3He magnet

โœ Scribed by F. X. Canning; R. A. Guyer

Publisher
Springer US
Year
1980
Tongue
English
Weight
528 KB
Volume
39
Category
Article
ISSN
0022-2291

No coin nor oath required. For personal study only.

โœฆ Synopsis

A model for 3He near its magnetic ordering temperature proposed by Papoular is discussed. Using the transfer integral formalism, we calculate the thermodynamic properties and in particular the temperature dependence of the entropy. These are compared with the properties calculated from a Schr6dinger-like equation approximation to the transfer integral equation. The relation between the entropy and the potential energy which drives the order parameter is examined. Modifications to the potential necessary to give the experimentally observed entropy are described.

๐Ÿ“œ SIMILAR VOLUMES

A model for the solid3He magnet?
A model for the solid3He magnet?
โœ R. A. Guyer; Pradeep Kumar ๐Ÿ“‚ Article ๐Ÿ“… 1982 ๐Ÿ› Springer US ๐ŸŒ English โš– 334 KB
Magnetic ordering in solid3He: A lattice
Magnetic ordering in solid3He: A lattice-dynamical approach
โœ M. Papoular ๐Ÿ“‚ Article ๐Ÿ“… 1978 ๐Ÿ› Springer US ๐ŸŒ English โš– 343 KB

A simple phenomenological, nonlinear lattice-dynamical representation of magnetic ordering in solid 3He is proposed and discussed. It appears to support the idea that low-energy spin-wave-like excitations are absent, due to the self-consistent coupling between spin and lattice variables. The model,