Magnetic Scattering in Germanium Tunnel Diode
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概要
- 論文の詳細を見る
Differential conductance of tunnel diodes, prepared by alloying arsenic doped germanium, was measured at low temperatures (1.6∼30K). Zero bias anomaly (Z.B.A)is a conductance maximum type, characteristic to the magnetic Kondo scattering. Using Nagaoka's result the Kondo temperature T_k is determined; T_k=4.4±0.5K for N_d=5×10^<18>cm^<-3> and 9.5±1.3K for N_d=1.5×10^<19>cm^<-3>. Introduction of Mn atoms into the junction increased the Z.B.A, indicating that Mn is magnetic in germanium, and the antiferromagnetic coupling constant J(<0) seems to be smaller than that for the localized magnetic moment regarded as the origin of the negative magnetoresistance in heavily doped germanium.
- 社団法人日本物理学会の論文
- 1972-09-05
著者
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Sawaki Nobuhiko
Department Of Electronics Faculty Of Engineering Nagoya University
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Arizumi Tetsuya
Department Of Electronic Engineering Faculty Of Engineering Nagoya University
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Sawaki Nobuhiko
Department of Electrical and Electronic Engineering, Aichi Institute of Technology, Toyota, Aichi 470-0392, Japan
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