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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Structure and magnetic properties of diluted magnetic metal oxides based on Cu-doped CeO2 nanopowders
F.A. Al-Agel,Esam Al-Arfaj,Ahmed A. Al-Ghamdi,Barry D. Stein,Yaroslav Losovyj,Lyudmila M. Bronstein,Lyudmila M. Bronstein,F.S. Shokr,Waleed E. Mahmoud,Waleed E. Mahmoud +9 more
TL;DR: In this paper, a hexamethylene triperoxide diamine assisted solvothermal method was used to synthesize Ce 1− x Cu x O nanostructures.
Journal ArticleDOI
Doping effects of Co2+ ions on structural and magnetic properties of ZnO nanoparticles
TL;DR: In this paper, the synthesis of Zn 1− x Co x O (0.0,⩽ ǫ 0.10) nanoparticles by an auto-combustion method using glycine as a fuel was reported.
Journal ArticleDOI
Structure and Magnetic Properties of Monodisperse Fe3+-doped CeO2 Nanospheres
TL;DR: In this paper, the structure and magnetic properties of undoped and Fe-doped CeO2 (Ce1 xFexO2, 0.01 � x � 0.07) nanospheres with diameters of 100�200 nm prepared by hydrothermal method using polyvinylpyrrolidone as surfactant.
Journal ArticleDOI
High-Tc ferromagnetism in diluted magnetic semiconducting GaN: Mn films
Hidenobu Hori,Saki Sonoda,T. Sasaki,Yoshiyuki Yamamoto,Saburo Shimizu,Ken-ichi Suga,Koichi Kindo +6 more
TL;DR: In this paper, the double exchange mechanism of the Mn-impurity band is presented as a possible model for the high-TC ferromagnetism in GaN:Mn.
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.
Journal ArticleDOI
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.