Resistivity Minimum in Antiferromagnetic <Cr>___--Fe Alloys
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概要
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The electrical resistivity of Cr-Fe alloys containing up to 2.6 at. % Fe is meas-ured in detail over the temperature range 0.5 K-340 K. The resistivity of thealloys containing less than 0.6 at. % Fe shows a constant value below about 1.8 K,decreases with increasing temperature in proportion to T' and exhibits a minimum.The temperature of the minimum depends on c"', where c is the concentrationof Fe. The resistivity of more concentrated alloys exhibits a minimum and amaximum. The magnetic susceptibility of the alloy containing l.5at.'l3 Feshows a sharp peak just below the temperature where the resistivity maximumtakes place. These results suggest that the resistivity minimum in antiferromagneticCr -Fe alloys is due to the Kondo effect caused by localized magnetic momentson Fe atoms. The Kondo temperature T, of the alloy containing 0.6 at. '3 Fe isestimated at about 140 K.
- 社団法人日本物理学会の論文
- 1979-04-15
著者
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Katano Susumu
Department Of Physics Japan Atomic Energy Research Institute
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Katano Susumu
Department Of Physics Faculty Of Science Hokkaido University
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