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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Room-temperature ferromagnetic Co-doped ZnO nanoneedle array prepared by pulsed laser deposition
TL;DR: A Co-doped ZnO nanoneedle array with room-temperature ferromagnetic properties was successfully fabricated by pulsed laser deposition (PLD) method as discussed by the authors.
Journal ArticleDOI
MAGNETO-TRANSPORT AND MAGNETO-OPTICAL PROPERTIES OF FERROMAGNETIC (III,Mn)V SEMICONDUCTORS: A REVIEW
TL;DR: In this paper, a review of the main developments and current understanding of the bulk properties of these systems within the metallic regime, focusing principally on the magneto-transport and magnetooptical properties.
Journal ArticleDOI
Effect of annealing on the structural, electrical and magnetic properties of Gd-implanted ZnO thin films
Peter P. Murmu,Peter P. Murmu,Peter P. Murmu,John Kennedy,John Kennedy,Ben J. Ruck,Ben J. Ruck,Grant V. M. Williams,Grant V. M. Williams,Andreas Markwitz,Andreas Markwitz,Sergey Rubanov,Alexandra Suvorova +12 more
TL;DR: In this paper, structural, electrical and magnetic measurements on Gd-implanted ion beam deposited zinc oxide (ZnO) films were performed using high-resolution and energy-filtered transmission electron microscopy.
Journal ArticleDOI
Structural, optical and magnetic properties of Co-doped ZnO nanorods prepared by hydrothermal method
TL;DR: In this article, the effect of Co doping on the morphology, crystalline structure, optical and magnetic properties of ZnO nanorods has been investigated based on the results of X-ray diffraction and Raman spectra.
Journal ArticleDOI
Trapping of Ce electrons in band gap and room temperature ferromagnetism of Ce4+ doped ZnO nanowires
TL;DR: In this article, rare earth (Ce) metal doped ZnO nanowires have been fabricated through a simple, quick, and versatile low temperature soft chemical method.
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.