Electric-field control of ferromagnetism in (Ga,Mn)As
Electric-field control of ferromagnetism in (Ga,Mn)As
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DOI:
10.1063/1.2362971
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发表时间:
2006-10-16
影响因子:
4
通讯作者:
Ohno, H.
中科院分区:
文献类型:
--
作者:
Chiba, D.;Matsukura, F.;Ohno, H.
The authors show modulation of Curie temperature T-C and coercivity mu H-0(c) by applying external electric fields E in a ferromagnetic semiconductor (Ga,Mn)As, where a field-effect transistor structure with an Al2O3 gate insulator is utilized. Application of E=+5 (-5) MV/cm decreases (increases) T-C of the channel layer. mu H-0(c) also decreases (increases) with increasing (decreasing) E below T-C. The mechanism of the modulation of mu H-0(c) by E is discussed.