This refers to magnetic resonance due to electron spin. It was first demonstrated in 1945 by Evgeny Konstantinovich Zavoisky (1907-1976) of the Soviet Union. Magnetic resonance occurs when an electron with spin s (magnetic moment μ) is placed in a magnetic field H and an electromagnetic wave with a frequency ν that satisfies the following condition is applied: ν=(μ/ sh ) H ( h is Planck's constant) [Junkichi Ito] "New Physics Series 20: Electron Spin Resonance" by Muneyuki Date (1978, Baifukan Publishing) " "Electron Spin Resonance - Micro Characterization of Materials" by Hiroaki Oya and Jun Yamauchi (1989, Kodansha) " "ESR Microscopy - New Developments in Measurement Using Electron Spin Resonance" by Mototsugu Ikeya and Toshikatsu Miki (1992, Springer-Verlag Tokyo)" [Reference] | |Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
電子スピンによる磁気共鳴のこと。1945年にソ連のザボイスキーEvgeny Konstantinovich Zavoisky(1907―1976)によって初めて行われた。スピンsの電子(磁気モーメントμ)を磁界Hの中に置いて次の条件を満たす周波数νの電磁波を加えると磁気共鳴がおこる。 ν=(μ/sh)H (hはプランク定数) [伊藤順吉] 『伊達宗行著『新物理学シリーズ20 電子スピン共鳴』(1978・培風館)』▽『大矢博昭・山内淳著『電子スピン共鳴――素材のミクロキャラクタリゼーション』(1989・講談社)』▽『池谷元伺・三木俊克著『ESR顕微鏡――電子スピン共鳴応用計測の新たな展開』(1992・シュプリンガー・フェアラーク東京)』 [参照項目] | |出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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