Theoretical Study on Spin Polarization of III-V Compound Tips
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概要
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We investigate spin electronic structures of GaN probes, using first principles molecular orbital calculations. It is found that at the pyramidal heads of the probes with the axes parallel to the crystallographic axes [100] amtd [111] in the zincblende GaN, electron spins are polarized at the lowest energy states. Nearly 8%〜16% of electrons in the valence band are spin-polarized at the proximity of the head depending upon the sort of the atom on the apex and the crystallographic axis of the probe. It is observed that spin polarizability depends on the difference of electronegativities of the elements in a compound and on a highly symmetric nanostructure of the probe. It is due to Jahn-Teller effect of the tip configuration.
- 社団法人日本磁気学会の論文
- 1999-01-20
著者
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Mukasa Koichi
Crest Jst Nanoelectronics Laboratory Graduate School Of Engineering Hokkaido University : Nanoelectr
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Sawamura Makoto
Crest
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Sawamura Makoto
Crest Japan Science And Technilogy Corporation.:nanoelectronics Faculty Of Engineering Hokkaido Univ
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Mukasa Koichi
Crest Japan Science And Technilogy Corporation.:nanoelectronics Faculty Of Engineering Hokkaido Univ
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Maruyama Tomohide
Faculty of Engineering, Hikkaido Tokai University
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Maruyama Tomohide
Faculty Of Engineering Hikkaido Tokai University
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