Jul, 1998
Theory of metamagnetism in the heavy fermion compound CeRu2Si2
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
- Volume
- 67
- Number
- 7
- First page
- 2197
- Last page
- 2200
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1143/JPSJ.67.2197
- Publisher
- PHYSICAL SOC JAPAN
Metamagnetism of heavy fermions is investigated using the Anderson lattice model in which the anisotropy of the hybridization matrix element, together with electron-lattice coupling, is taken into account. Within the leading-order approximation in the 1/N-expansion, it is found that the incoherent part of the f electron becomes relevant above a critical field H-M, while it is irrelevant below H-M. Consequently, both magnetization and magnetostriction show abrupt increases with increasing H at H-M. The results are in good agreement with the experimental data of CeRu2Si2.
- Link information
- ID information
-
- DOI : 10.1143/JPSJ.67.2197
- ISSN : 0031-9015
- Web of Science ID : WOS:000075035400013