coercive force

…The magnetization (OM) at this point is called residual magnetization. If a magnetic field in the opposite direction is applied and the strength of the magnetic field is increased, the magnetization becomes zero at a certain magnetic field strength, and the magnetic field (OC) at this point is called coercive force. As the magnetic field strength increases, it saturates in the opposite direction, and if the magnetic field strength is then reduced and a magnetic field is applied again in the original direction, it will again show saturation magnetization. …

*Some terminology explanations that mention "coercive force" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…このときの磁化(OM)を残留磁化residual magnetizationと呼ぶ。さらに逆向きの磁場を加え，磁場の大きさを増加させるとある磁場の大きさで磁化が0になり，このときの磁場(OC)を保磁力coercive forceという。磁場の大きさの増加とともに逆向きに飽和し，以後，磁場の大きさを減らし，再び最初の方向に磁場を加えると，また飽和磁化を示す。…

※「coercive force」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