Journal ArticleDOI
Ferromagnetism in metal oxide systems: interfaces, dopants, and defects
TLDR
A review of the developments in this field by late 2011 and 2012 can be found in this paper, where a number of techniques are applied to bring out materials issues that are critical to the precise understanding of the origin of magnetism in certain cases.Abstract:
Ferromagnetism in metal oxide systems has always attracted scientific attention in view of the intriguing and interesting interplay of spin, charge, orbital and lattice degrees of freedom that such systems display. This trend appears to be continuing with enhanced focus on interface systems, multiferroics, diluted magnetic semiconducting oxides (DMSOs) and nanomaterial magnetism. Newer techniques are being applied to bring out materials issues that are critical to the precise understanding of the origin of magnetism in certain cases. Interest is also beginning to grow in exploring application potential of some such systems. In this article we review the developments in this field by late 2011 and 2012.read more
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Recent progress in resistive random access memories: Materials, switching mechanisms, and performance
TL;DR: A comprehensive review of the recent progress in the so-called resistive random access memories (RRAMs) can be found in this article, where a brief introduction is presented to describe the construction and development of RRAMs, their potential for broad applications in the fields of nonvolatile memory, unconventional computing and logic devices, and the focus of research concerning RRAMS over the past decade.
Journal ArticleDOI
Negative permittivity behavior and magnetic performance of perovskite La1−xSrxMnO3 at high-frequency
TL;DR: In this article, an interesting negative permittivity behavior of single-phase perovskite La1−xSrxMnO3 (LSMO) was found, where the LSMO bulks with an x value of 0.2 or 0.5 were prepared by a solgel/sintering process.
Journal ArticleDOI
Investigating thermal stability of structural defects and its effect on d0 ferromagnetism in undoped SnO2
TL;DR: In this paper, the effect of annealing on structural defects and d(0) ferromagnetism in SnO2 nanoparticles prepared by solution combustion method is investigated.
Journal ArticleDOI
Effect of structural defects, surface roughness on sensing properties of Al doped ZnO thin films deposited by chemical spray pyrolysis technique
Manjeet Kumar,Manjeet Kumar,B. V. Singh,Pankaj Yadav,Vishwa Bhatt,Manoj Kumar,Kulwinder Singh,Ashutosh C. Abhyankar,Akshay Kumar,Ju-Hyung Yun +9 more
TL;DR: In this article, the gas sensing properties of Al-doped ZnO thin films have been reported where the nanocrystalline znO based thin films were well deposited by a simple and inexpensive chemical spray pyrolysis (CSP) technique.
Journal ArticleDOI
Investigation of the physical properties of Fe:TiO2-diluted magnetic semiconductor nanoparticles
TL;DR: The structural, optical, magnetic, and electrical properties of sol-gel-derived Ti1−xFexO2 (0.00 ≤ x ≤ 0.05) nanoparticles were investigated in this paper.
References
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Journal ArticleDOI
Ionized zinc vacancy mediated ferromagnetism in copper doped ZnO thin films
TL;DR: In this paper, the origin of ferromagnetism in Cu-doped ZnO thin films was reported, and a quasi-indirect exchange model (via ionized zinc vacancy) was proposed.
Journal ArticleDOI
Epitaxial Magnetic Oxide Nanocrystals Via Phase Decomposition of Bismuth Perovskite Precursors
Kashinath A. Bogle,Jeffrey Cheung,Yong Lun Chen,Sheng Chieh Liao,Chih Hung Lai,Ying-Hao Chu,J. M. Gregg,Satishchandra Ogale,Nagarajan Valanoor +8 more
TL;DR: The phase instability of bismuth perovskite (BiMO 3 ), where M is a ferromagnetic cation, is exploited to create self-assembled magnetic oxide nanocrystal arrays on oxide supports as discussed by the authors.
Journal ArticleDOI
Dual Antiferromagnetic Coupling at La 0.67 Sr 0.33 MnO 3 /SrRuO 3 Interfaces
A. Solignac,Ruben Guerrero,P. Gogol,Thomas Maroutian,Frédéric Ott,Ludovic Largeau,Ph. Lecoeur,Myriam Pannetier-Lecoeur +7 more
TL;DR: In this article, the authors studied the magnetic hysteresis cycle of antiferromagnetic coupled bilayers, by magnetometry and polarized neutron reflectometry, and they found an unusual asymmetry on the magnetic reversal process.
Journal ArticleDOI
Dual Antiferromagnetic Coupling atLa0.67Sr0.33MnO3/SrRuO3Interfaces
A. Solignac,Ruben Guerrero,P. Gogol,Thomas Maroutian,Frédéric Ott,Ludovic Largeau,Ph. Lecoeur,M. Pannetier-Lecoeur +7 more
TL;DR: Experimental evidence is given that an unusual asymmetry observed on the magnetic reversal process of the La0.67Sr0.33MnO3/SrRuO3 layer originates from two different but well-defined antiferromagnetic coupling strengths at the interface between the two magnetic oxides.