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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Preparation, structure and magnetic characterization of Ni doped ZnO nano-particles
TL;DR: In this paper, the properties of Ni-doped ZnO nano-particles were investigated using X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and Vibrating Sample Magnetometer (VSM).
Journal ArticleDOI
Appearance of Ferromagnetism in Co-Doped CeO2 Diluted Magnetic Semiconductors Prepared by Solid-State Reaction
A. Bouaine,Robert J. Green,Silviu Colis,Paul Bazylewski,Gap Soo Chang,Alexander Moewes,Ernst Z. Kurmaev,Aziz Dinia +7 more
TL;DR: In this article, the magnetic and electronic properties of Co-doped CeO2 oxides prepared by a solid-state reaction were investigated using soft X-ray absorption and emission spectroscopy.
Journal ArticleDOI
Colloidal cobalt-doped ZnO nanorods: synthesis, structural, and magnetic properties
Thomas Büsgen,Michael Hilgendorff,Stephan Irsen,F. Wilhelm,A. Rogalev,Dagmar Goll,Michael Giersig +6 more
TL;DR: In this paper, the synthesis of ZnO:Co nanorods in alcoholic solutions and their structural, optical, and magnetic properties are presented; they exhibit diameters of about 20 nm and lengths up to 150 nm.
Journal ArticleDOI
The structural and magnetic properties of (In1-xFex)2O3 (0.0 <= x <= 0.25) system : prepared by gel combustion method
O. D. Jayakumar,I. K. Gopalakrishnan,Shailendra K. Kulshreshtha,Amita Gupta,K. N. V. Rao,Dmitri V. Louzguine,Akihisa Inoue,Per-Anders Glans,Jinghua Guo,Kousik Samanta,M. K. Singh,Ram S. Katiyar +11 more
TL;DR: In this article, the formation of single phase cubic bixbyite structure without any parasitic phases was confirmed by high resolution transmission electron microscopy (HRTEM) imaging, and indexing of the selected-area electron diffraction (SAED) patterns, X-ray Absorption Spectroscopy (XAS) and Raman Spectroscope.
Journal ArticleDOI
Ferromagnetism of Mn-doped TiO2 nanorods synthesized by hydrothermal method
TL;DR: In this paper, the authors used X-ray diffraction and Raman spectral data to estimate the two parameters, magnetization (MS) and coercivity (HC), for 5% Mn-doped TiO2 nanorods.
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.