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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Synthesis, structure and ferromagnetic properties of Ni-doped ZnO nanoparticles
TL;DR: In this article, Ni-doped ZnO particles were synthesized by rheological phase reaction-precursor method and the thermal decomposition of oxalate precursors was studied by thermogravimetry and differential thermal analysis in air atmosphere.
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Room-temperature ferromagnetism in well-aligned Zn1−xCoxO nanorods
TL;DR: In this article, the transparence of the Zn1−xCoxO nanorod in the visible region has been examined by UV-visible absorption, and it was shown that the fundamental absorptions of the nanorods estimated from the absorption spectra do not reveal pronounced difference from that of pure ZnO nanors.
Journal ArticleDOI
Room-temperature magnetism in Cr-doped AlN semiconductor films
TL;DR: In this article, the synthesis and characterization of magnetic semiconductors Al1−xCrxN, in which the atomic fraction of chromium x is up to 0.357, are reported.
Journal ArticleDOI
Oxygen vacancies in N doped anatase TiO2: Experiment and first-principles calculations
Abdul K. Rumaiz,J. C. Woicik,Eric Cockayne,Horng-Ban Lin,G. Hassnain Jaffari,Syed Ismat Shah +5 more
TL;DR: In this paper, the electronic and atomic structure of N doped TiO2 was determined using a combination of hard x-ray photoelectron spectroscopy and first-principles density functional theory calculations.
Journal ArticleDOI
Zinc oxide nanowires
TL;DR: In this paper, the fundamental aspects of ZnO nanowires are reviewed and highlighted for future applications, including the synthesis and patterned growth, the challenge for p-type doping, basic properties of NN, and their potential applications.
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.
Journal ArticleDOI
(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.