Effect of Orbital Degeneracy and Intra-Atomic Exchange on the Occurrence of Ferromagnetism
-
- Inagaki Satoru
- Department of Physics, University of Tokyo
書誌事項
- タイトル別名
-
- Effect of Orbital Degeneracy and Intra
- 公開日
- 1975
- DOI
-
- 10.1143/jpsj.39.596
- 公開者
- 一般社団法人 日本物理学会
この論文をさがす
説明
The role of orbital degeneracy and intra-atomic exchange for the possible origin of ferromagnetism in transition metals is investigated assuming doubly degenerate bands with intra-atomic Coulomb and exchange interactions. Roth showed in the narrow band limit with one electron per atom that the ground state is ferromagnetic with a superlattice ordering with respect to the orbital states. It is found here that there exist two phase transitions at finite temperatures. At the higher transition temperature only the superlattice ordering of the orbital states appears. The spin susceptibility, which obeys at higher temperatures the antiferromagnetic Curie-Weiss law, is modified by the appearance of this orbital ordering and finally it goes over into a ferromagnetic behavior with the help of intra-atomic exchange. Ferromagnetism thus occurs at the lower transition temperature. This conclusion is suggested in a two-atom system and is confirmed within a molecular field approximation.
収録刊行物
-
- Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ
-
Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ｐｈｙｓｉｃａｌ Ｓｏｃｉｅｔｙ ｏｆ Ｊａｐａｎ 39 (3), 596-604, 1975
一般社団法人 日本物理学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001204190836736
-
- NII論文ID
- 210000085445
- 110001974994
- 130003894581
-
- NII書誌ID
- AA00704814
-
- BIBCODE
- 1975JPSJ...39..596I
-
- COI
- 1:CAS:528:DyaE2MXlsFKqtbs%3D
-
- ISSN
- 13474073
- 00319015
-
- NDL書誌ID
- 1617563
-
- 本文言語コード
- en
-
- データソース種別
-
- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
- OpenAIRE
-
- 抄録ライセンスフラグ
- 使用不可
