Journal ArticleDOI
Zener Model Description of Ferromagnetism in Zinc-Blende Magnetic Semiconductors
Reads0
Chats0
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
More filters
Journal ArticleDOI
Ferromagnetism in Fe-doped ZnO bulk samples
TL;DR: In this article, polycrystalline bulk samples with a nominal composition Zn 1− x Fe x O (x = 0-3%) were prepared by a coprecipitation method.
Journal ArticleDOI
Hidden Kekule ordering of adatoms on graphene
TL;DR: In this article, the Friedel oscillations of the electron density in Graphene are modelled as a hidden Kekule mosaic order, and it is shown that dilute adatoms on graphene may have a tendency towards a spatially correlated state with a hidden kekule order.
Journal ArticleDOI
Room-temperature ferromagnetism of Cu-implanted GaN
Jong-Han Lee,In-Hoon Choi,Sangwon Shin,Sunggoo Lee,J. Lee,C. N. Whang,Seung-Cheol Lee,Kwang-Ryeol Lee,Jong-Hyeob Baek,Keun Hwa Chae,Jonghan Song +10 more
TL;DR: In this article, a 1.1MeV Cu2+ ion was implanted into GaN with a dose of 1×1017cm−2 at room temperature, and the samples were subsequently performed by rapid thermal annealing at 700, 800, and 900°C for 5min.
Journal ArticleDOI
Synthesis and magnetic properties of Zn1−xCoxO nanorods
TL;DR: In this paper, the magnetic Zn1−xCoxO nanorods were fabricated via direct hydrothermal synthesis and the magnetic field dependence of magnetization (M-H curves) measured at 300K showed their ferromagnetic characteristics.
Journal ArticleDOI
Structural and Optical Properties of Co-Doped ZnO Thin Films
Y. Z. Peng,Y. Z. Peng,Thomas Liew,Thomas Liew,W. D. Song,Chengwu An,Kie Leong Teo,Tow Chong Chong,Tow Chong Chong +8 more
TL;DR: In this paper, Co-doped zinc oxide thin films (Zn1−xCoxO) have been deposited on c-plane sapphire substrates by dual-beam pulsed laser deposition.
References
More filters
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.
Journal ArticleDOI
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.