Weiss, Pierre (English spelling) WeissPierre

Japanese: Weiss,Pierre(英語表記)WeissPierre
Weiss, Pierre (English spelling) WeissPierre

...Because magnetism originates from the magnetic moment based on the motion of electrons, understanding of magnetism had to await the development of quantum mechanics. Previous classical research on magnetism includes Curie's law, which states that paramagnetic susceptibility is inversely proportional to absolute temperature, and the introduction in 1907 of the concept of molecular magnetic field (also called molecular field or mean field) by Pierre Weiss (1865-1940) to explain ferromagnetism. This molecular field is a magnetic field that acts on the magnetic moment of each electron and is proportional to the magnetization of the material, and this concept was the key to understanding typical phenomena in condensed matter physics called cooperative phenomena, including ferromagnetism. ...

*Some of the terminology explanations that mention "Weiss, Pierre" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…磁性の起源は電子の運動に基づく磁気モーメントであるから,磁性の理解も量子力学の展開を待たねばならなかった。それ以前の古典的な磁性研究としては,常磁性磁化率が絶対温度に反比例するというキュリーの法則,1907年のワイスPierre Weiss(1865‐1940)による強磁性を説明するための分子磁場(分子場,平均場ともいう)の概念の導入が挙げられる。この分子場というのは,個々の電子の磁気モーメントに働く,その物質の磁化に比例した磁場であり,この考え方は強磁性を含めて協同現象と呼ばれる物性物理学における典型的な現象を理解する鍵となるものであった。…

※「Weiss,Pierre」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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