Indirect exchange interaction

Japanese: 間接交換相互作用 - かんせつこうかんそうごさよう
Indirect exchange interaction

…Research into magnetism in localized magnetic electron systems, such as compounds of iron-group transition metals, in which the electrons responsible for magnetism are localized on each magnetic atom, progressed significantly after World War II, and detailed research was also conducted on exchange interactions. In addition to the so-called direct exchange interaction explained above, it was revealed that more complex interactions, called superexchange interactions and indirect exchange interactions, are actually at work. Among these complex exchange interactions, there is one that exerts a force that makes the directions of two spins antiparallel, and it was shown that magnetism is expressed in which the spin directions of the electrons on the magnetic atoms change to alternate directions along the crystal lattice, as opposed to ferromagnetism, in which all the spins are aligned. …

*Some of the terminology explanations that mention "indirect exchange interaction" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…鉄族遷移金属の化合物などのように,磁性を担う電子が各磁性原子に局在している局在磁性電子系についての磁性の研究は第2次世界大戦後おおいに進み,交換相互作用についても詳しい研究がなされた。上に説明をした直接交換相互作用と呼ばれるもののほかに,超交換相互作用,間接交換相互作用と名付けられる,もっと複雑なものが実際に働いていることが明らかにされた。これらの複雑な交換相互作用の中には二つのスピンの向きを反平行にする力を与えるものがあり,すべてのスピンの向きがそろっている強磁性に対して,磁性原子の上の電子のスピンの向きが結晶格子に沿って互い違いに変わるような磁性が発現することが示された。…

※「間接交換相互作用」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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