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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Ferromagnetic properties of Zn1−xMnxO epitaxial thin films
TL;DR: In this paper, the properties of Zn1−xMnxO (x=0.1 and 0.3) thin films grown on Al2O3(00⋅1) substrates using laser molecular-beam epitaxy were investigated.
Journal ArticleDOI
Semiconductor spintronics
Hiro Akinaga,H. Ohno +1 more
TL;DR: In this article, the authors review recent progress made in the field of semiconductor spintronics, a branch of the semiconductor electronics where both charge and spin degrees of freedom play an important role in realizing unique functionalities.
Journal ArticleDOI
Transition metal-doped TiO2 and ZnO?present status of the field
TL;DR: In this paper, the authors summarize the current status of oxide-based diluted magnetic semiconductors, and discuss the influence of growth method, substrate choice, and temperature on the microstructure and subsequent magnetic properties of thin films.
Journal ArticleDOI
The Quantum Anomalous Hall Effect: Theory and Experiment
TL;DR: The quantum anomalous Hall effect as mentioned in this paper is defined as a quantized Hall effect realized in a system without an external magnetic field and is a novel manifestation of topological structure in many-electron systems and may have potential applications in future electronic devices.
Journal ArticleDOI
On the origin of high-temperature ferromagnetism in the low-temperature-processed Mn-Zn-O system.
Darshan C. Kundaliya,Satishchandra Ogale,Samuel E. Lofland,Sankar Dhar,C. J. Metting,S. R. Shinde,Z. Ma,B. Varughese,Kandalam V. Ramanujachary,Lourdes Salamanca-Riba,Thirumalai Venkatesan +10 more
TL;DR: The results strongly suggest that the observed ferromagnetic phase is oxygen-vacancy-stabilized Mn2−xZnxO3−δ, rather than by carrier-induced interaction between separated Mn atoms in ZnO.
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.
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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.