Hyperfine Structure of Divalent and Trivalent Fe 57 in Cobalt Oxide
Hyperfine Structure of Divalent and Trivalent Fe 57 in Cobalt Oxide
复制标题
氧化钴中二价和三价 Fe 57 的超精细结构
DOI：
10.1103/physrev.124.764
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发表时间：
1961
期刊：
影响因子：
--
通讯作者：
G. Wertheim
中科院分区：
文献类型：
--
作者：
G. Wertheim
The hyperfine structure of divalent and trivalent iron in CoO has been obtained from the M\"ossbauer effect of ${\mathrm{Fe}}^{57}$ produced by the electron-capture decay of ${\mathrm{Co}}^{57}$. The two valence states are obtained respectively by x ray and Auger effect de-excitation of the $K$-shell hole resulting from electron capture in divalent ${\mathrm{Co}}^{57}$. Higher valence states which could be produced by multiple Auger de-excitation are not observed, indicating that their lifetimes are short. The magnetic field at a divalent iron nucleus at low temperature is 2.0\ifmmode\times\else\texttimes\fi{}${10}^{5}$ oe while that at a trivalent one is 5.6\ifmmode\times\else\texttimes\fi{}${10}^{5}$ oe. The quadrupole coupling in this almost cubic environment is less than 1.0 Mc/sec.
The hyperfine structure of divalent and trivalent iron in CoO has been obtained from the M\"ossbauer effect of ${\mathrm{Fe}}^{57}$ produced by the electron-capture decay of ${\mathrm{Co}}^{57}$. The two valence states are obtained respectively by x ray and Auger effect de-excitation of the $K$-shell hole resulting from electron capture in divalent ${\mathrm{Co}}^{57}$. Higher valence states which could be produced by multiple Auger de-excitation are not observed, indicating that their lifetimes are short. The magnetic field at a divalent iron nucleus at low temperature is 2.0\ifmmode\times\else\texttimes\fi{}${10}^{5}$ oe while that at a trivalent one is 5.6\ifmmode\times\else\texttimes\fi{}${10}^{5}$ oe. The quadrupole coupling in this almost cubic environment is less than 1.0 Mc/sec.