Journal ArticleDOI
Zener Model Description of Ferromagnetism in Zinc-Blende Magnetic Semiconductors
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TLDR
Zener's model of ferromagnetism, originally proposed for transition metals in 1950, can explain T(C) of Ga(1-)(x)Mn(x)As and that of its II-VI counterpart Zn(1)-Mn (x)Te and is used to predict materials with T (C) exceeding room temperature, an important step toward semiconductor electronics that use both charge and spin.Abstract:
Ferromagnetism in manganese compound semiconductors not only opens prospects for tailoring magnetic and spin-related phenomena in semiconductors with a precision specific to III-V compounds but also addresses a question about the origin of the magnetic interactions that lead to a Curie temperature (T(C)) as high as 110 K for a manganese concentration of just 5%. Zener's model of ferromagnetism, originally proposed for transition metals in 1950, can explain T(C) of Ga(1-)(x)Mn(x)As and that of its II-VI counterpart Zn(1-)(x)Mn(x)Te and is used to predict materials with T(C) exceeding room temperature, an important step toward semiconductor electronics that use both charge and spin.read more
Citations
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Spin dynamics in semiconductors
TL;DR: In this paper, the current status of spin dynamics in semiconductors is reviewed and a fully microscopic many-body investigation on spin dynamics based on the kinetic spin Bloch equation approach is comprehensively reviewed.
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Recent progress in voltage control of magnetism: Materials, mechanisms, and performance
TL;DR: In this paper, the authors provide a comprehensive review of recent progress in voltage control of magnetism in different thin films and discuss the challenges and future prospects of VCM, which will inspire more in-depth research and advance the practical applications of this field.
Journal ArticleDOI
65 years of ZnO research – old and very recent results
Claus F. Klingshirn,J. Fallert,Huijuan Zhou,Janos Sartor,Cornelius Thiele,Florian Maier-Flaig,Daniel Schneider,Heinz Kalt +7 more
TL;DR: In this paper, a didactical review of optical properties of ZnO has been presented, focusing mainly on optical properties but presenting shortly also a few aspects of other fields like transport or magnetic properties.
Journal ArticleDOI
Dirac-fermion-mediated ferromagnetism in a topological insulator
TL;DR: In this paper, it was shown that decreasing the concentration of Dirac fermions in a Mn-doped topological insulator with an electric field increases the strength of its magnetic properties.
Journal ArticleDOI
Prospects for high temperature ferromagnetism in (Ga,Mn)As semiconductors
Tomas Jungwirth,Kaiyou Wang,J. Mašek,K. W. Edmonds,Jürgen König,Jairo Sinova,Marco Polini,N. A. Goncharuk,Allan H. MacDonald,Maciej Sawicki,A. W. Rushforth,R. P. Campion,Lixia Zhao,C. T. Foxon,B. L. Gallagher +14 more
TL;DR: In this paper, the authors report on a comprehensive combined experimental and theoretical study of Curie temperature trends in (Ga,Mn)As ferromagnetic semiconductors, and they conclude that the number of uncompensated local moments in high-quality metallic samples increases linearly with number of acceptors with no sign of saturation.
References
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Journal ArticleDOI
Making Nonmagnetic Semiconductors Ferromagnetic
TL;DR: The magnetic coupling in all semiconductor ferromagnetic/nonmagnetic layered structures, together with the possibility of spin filtering in RTDs, shows the potential of the present material system for exploring new physics and for developing new functionality toward future electronics.
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Diluted magnetic semiconductors
TL;DR: In this paper, the physical properties of diluted magnetic semiconductors (DMS) of the type AII1−xMnxBVI (e.g., Cd1−mnxSe, Hg 1−mnsTe) were reviewed.
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(Ga,Mn)As: A new diluted magnetic semiconductor based on GaAs
Hideo Ohno,Aidong Shen,Fumihiro Matsukura,Akira Oiwa,Akira Endo,Shingo Katsumoto,Yasuhiro Iye +6 more
TL;DR: In this article, a new GaAs-based diluted magnetic semiconductor, (Ga,Mn)As, was prepared by molecular beam epitaxy and the lattice constant was determined by x-ray diffraction and shown to increase with the increase of Mn composition, x.
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Interaction Between the d Shells in the Transition Metals
TL;DR: In this paper, it is shown that the spin coupling between the incomplete $d$ shells and the conduction electrons leads to a tendency for a ferromagnetic alignment of $d $ spins.