TDPAC of γ-Rays Emitted from ^<111>Cd(←^111In) in Fe_3O_4
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概要
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The supertransferred hyperfine magnetic field, H...., at "'Cd(="'In) on thetetrahedral site of Fe,0. was measured by means of the time differential perturbedangular correlation (TDPAC) between 85 and 300 K. Each TDPAC spectrum has awell-defined hyperfine frequency component above the Verwey temperature,T.(= 120 K), whereas remarkably distributed one below this temperature. The valueof H3... at low temperatures is -F- 121 k0e in average, which shows the covalence inCd"-0' bonds is considerably smaller than that in In"-O' bonds in spinel typeoxides. The apparent distribution of the hyperfine frequencies below T. is qualitative-ly explained by a distribution of H.... at "'Cd due to fluctuation of the relativepopulations of Fe" and Fe" ions in the neighboring octahedral sites, or a smallamount of electric field gradient acting on "'Cd in addition to H.....
- 社団法人日本物理学会の論文
- 1985-11-15
著者
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Okada Takuya
The Institute Of Physical And Chemical Research
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Asai Kichizo
The Institute Of Physical And Chemical Research (riken)
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Asai Kichizo
The Institute Of Physical And Chemical Research
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SEKIZAWA Hisashi
The Institute of Physical and Chemical Research
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Sekizawa Hisashi
The Institute Of Physical And Chemical Research (riken)
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Sekizawa Hisashi
The Institute Of Physic And Chemical Research
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Okada Takuya
The Institute For Physical And Chemical Research
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Okada Takuya
The Institute Of Physical And Chemical Research (riken)
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