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
Magnetic and transport characteristics on high Curie temperature ferromagnet of Mn-doped GaN
Takahiko Sasaki,Saki Sonoda,Yoshiyuki Yamamoto,Ken-ichi Suga,Saburo Shimizu,Kouichi Kindo,Hidenobu Hori +6 more
TL;DR: In this paper, the temperature dependencies of electrical resistance and carrier concentration were measured to investigate the relation between the ferromagnetism and transport property, showing coexistence of ferromagnetic and paramagnetic phases.
Journal Article
Magnetic anisotropy of Co2+ as signature of intrinsic ferrromagnetism in ZnO:Co
P. Sati,Roland Hayn,R. O. Kuzian,S. Shäfer,S. Régnier,A. Stepanov,Christian Morhain,Christiane Deparis,M. Laügt,Michel Goiran,Z. Golacki +10 more
Journal ArticleDOI
Magnetic properties of Mn doped ZnO tetrapod structures
Vellaisamy A. L. Roy,Aleksandra B. Djurišić,Hui Liu,Xu-Xiang Zhang,Yu Hang Leung,Maohai Xie,Ju Gao,H. F. Lui,Charles Surya +8 more
TL;DR: ZnO tetrapod nanostructures were prepared by evaporating Zn metal under humid argon flow, and diffusion doping was performed at two different temperatures (600 and 800 °C) as mentioned in this paper.
Journal ArticleDOI
Laser ablation of Co:ZnO films deposited from Zn and Co metal targets on (0001) Al2O3 substrates
TL;DR: In this paper, the synthesis of high-quality Co-doped ZnO thin films using the pulsed laser deposition technique on (0001)-Al2O3 substrates performed in an oxidizing atmosphere, using Zn and Co metallic targets.
Journal ArticleDOI
Aqueous Synthesis of Mn- and Co-Doped ZnO Nanorods
TL;DR: In this article, the optical and magnetic properties of Mn-and Co-doped ZnO nanorods fabricated via a simple one-step aqueous-based chemical method were reported.
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.