2010 Fiscal Year Final Research Report
Control of the physical properties of ferromagnetic semiconductors and its application to spin-polarized electron source
| Project Area | Creation and control of spin current |
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| Project/Area Number |
19048011
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| Research Category |
Grant-in-Aid for Scientific Research on Priority Areas
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| Allocation Type | Single-year Grants |
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| Review Section |
Science and Engineering
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| Research Institution | University of Tsukuba |
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Principal Investigator |
KURODA Shinji University of Tsukuba, 大学院・数理物質科学研究科, 教授 (40221949)
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| Co-Investigator(Kenkyū-buntansha) |
KANAZAWA Ken 筑波大学, 大学院・数理物質科学研究科, 助教 (60455920)
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| Project Period (FY) |
2007 – 2010
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| Keywords | スピントロニクス |
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| Research Abstract |
Aiming at realization of the source of spin injection into semiconductors, we have performed studies for material search of magnetic semiconductors based on II-VI compounds and control and improvement of ferromagnetic properties. Taking the Cr aggregation in (Zn,Cr)Te as a target of our study, we have tried to control the details of Cr aggregation and magnetic properties by changing various conditions of the crystal growth. As a result, we have succeeded in controlling the formation of Cr-aggregated regions by the growth temperature. In addition, we have studied a binary compound CrTe and a quaternary compound (Cd,Mn,Cr)Te and have observed ferromagnetic behaviors in these materials.
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[Journal Article] Effect of co-doping of donor and acceptor impurities in the ferromagnetic semiconductor Zn_<1-x>Cr_xTe studied by soft x-ray magnetic circular dichroism2011
Author(s)
Y.Yamazaki, T.Kataoka, V.R.Singh, A.Fujimori, F.-H.Chang, D.-J.Huang, H.-J.Lin, C.T.Chen, K.Ishikawa, K.Zhang, S.Kuroda
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Journal Title
Journal of Physics : Condensed Matter 23
Pages: 176002,1-4
Peer Reviewed
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[Journal Article] Reversible ferromagnetic spin ordering governed by hydrogen in Co-doped ZnO semiconductor2009
Author(s)
Y.C.Cho, S.J.Kim, S.Lee, S.J.Kim, C.R. Cho, H.H.Nahm, C.H.Park, I.K.Jeong, S.Park, T.E.Hogn, S.Kuroda, S.Y.Jeong
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Journal Title
Applied Physics Letters 95
Pages: 172514,1-3
Peer Reviewed
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[Journal Article] AIP Conference Proceedings2007
Author(s)
F.Takano, T.Nishizawa, H.Kinjo, J.W.Lee, S.Kuroda, H.Ofuchi, Y.Imanaka, T.Takamasu, G.Kido, K.Takita, H.Akinaga
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Journal Title
Physics of Semiconductors : 28th International Conference on the Physics Semiconductors -ICPS 2006 vol.893
Pages: 1193-1194
Peer Reviewed
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