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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Journal ArticleDOI
Ferromagnetism in Transition-Metal Doped ZnO
Stephen J. Pearton,David P. Norton,M. Ivill,Arthur F. Hebard,John Zavada,Weimin Chen,Irina Buyanova +6 more
TL;DR: In this article, the authors review experimental results on transition-metal doping of ZnO and the current state of theories for ferromagnetic second phases in the material and conclude that the spin device appears to have no advantage relative to the conventional charge-control electronic analog.
Journal ArticleDOI
Magnetic and optical properties of Co-doped ZnO nanocrystalline particles
M. Shatnawi,Abdel Alsmadi,Abdel Alsmadi,Ibrahim Bsoul,B. Salameh,B. Salameh,G. Alna'Washi,Feras M. Aldweri,F. El Akkad +8 more
TL;DR: In this article, the effect of Co doping on the structural, magnetic and optical properties of ZnO nanocrystalline particles, using X-ray diffraction, x-ray photoelectron spectroscopy (XPS), Quantum Design PPMS-9 magnetometry, and Ultra Violet-Visible (UVVisible) spectroglobalization, was carried out.
Journal ArticleDOI
Ferromagnetism in two-dimensionalTi0.8Co0.2O2nanosheets
Minoru Osada,Y. Ebina,Katsutoshi Fukuda,Kanta Ono,Kazunori Takada,Kazunari Yamaura,E. Takayama-Muromachi,Takayoshi Sasaki +7 more
TL;DR: In this paper, the magnetic and magneto-optical properties of two-dimensional (2D) nanosized titanium oxide derived from layered titanates by exfoliation were investigated.
Journal ArticleDOI
Structure and properties of the Mn doped CeO2 thin film grown on LaAlO3 (0 0 1) via a modified sol–gel spin-coating technique
Waleed E. Mahmoud,Waleed E. Mahmoud,Attieh A. Al-Ghamdi,F.A. Al-Agel,Esam Al-Arfaj,F.S. Shokr,S.A. Al-Gahtany,Ahmed Alshahrie,M. Hafez,M. Hafez,Lyudmila M. Bronstein,Lyudmila M. Bronstein,Gary W. Beall,Gary W. Beall +13 more
TL;DR: In this article, Mn doped cerium oxide films were prepared on the LaAlO3 (0,0,1) substrate via an ethylene glycol modified sol-gel spin coating technique and evaluation of their properties as diluted magnetic semiconductors.
Journal ArticleDOI
Magnetism origin of Mn-doped ZnO nanoclusters
TL;DR: In this article, the structural and magnetic properties of ZnMnO nanoclusters were investigated using the sol-gel method and the XRD and XPS analyses proved that ferromagnetic ordering arises from Znmn2O4 in all probability.
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.