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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Nonvolatile resistive switching in spinel ZnMn2O4 and ilmenite ZnMnO3
Haiyang Peng,Tom Wu +1 more
TL;DR: In this article, spinel and ilmenite ZnMnO3 have been shown to have excellent unipolar resistive switching behaviors, with ON/OFF ratios larger than 104.
Journal ArticleDOI
Epitaxial electrodeposition of ZnO on Au(111) from alkaline solution: exploiting amphoterism in Zn(II).
TL;DR: The amphoteric nature of ZnO is used to produce the material from strongly alkaline solution, which grows with a sea urchin-like nanostructure, whereas the electrodeposited films have a columnar structure.
Journal ArticleDOI
Room-temperature ferromagnetism in manganese doped reduced rutile titanium dioxide thin films
TL;DR: In this article, the properties of single phase and reduced rutile-type thin films were investigated and it was shown that they are single-phase and reduced-rutile type.
Journal ArticleDOI
Cathodoluminescence and room temperature ferromagnetism of Mn-doped ZnO nanorod arrays grown by chemical vapor deposition
TL;DR: In this paper, the appearance of room temperature ferromagnetism in Mn-doped ZnO nanorods was investigated. But the results showed that oxygen vacancies played an important role in their appearance.
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A Gate-tunable Polarized Phase of Two-Dimensional Electrons at the LaAlO$_{3}$/SrTiO$_{3}$ Interface
TL;DR: In this article, the existence of unconventional electronic phases in the LaAlO3/SrTiO3 system pointing to an underlying tunable coupling between itinerant electrons and localized moments.
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.
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.