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Related papers: Nitrogen-induced Ferromagnetism in BaO

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Using first-principles modelling based on density functional theory we show that oxides implanted with transition metal can act as support for Au single atoms, which are stable against agglomeration. In our previous work we have shown that…

Materials Science · Physics 2020-10-01 Debolina Misra , Satyesh K. Yadav

We address the possibility of non-magnetic doping induced magnetism, in Li doped SnO2 nano-particles. The compounds have been prepared by solid state route at equilibrium and were found to be crystallized in single rutile phase. The…

Materials Science · Physics 2013-02-21 S. K. Srivastava , P. Lejay , A. Hadj-Azzem , G. Bouzerar

We investigated the magnetic properties of (La$_{1-x}$Ba$_{x}$)(Zn$_{1-x}$Mn$_{x}$)AsO with $x$ varying from 0.005 to 0.05 at an external magnetic field of 1000 Oe. For doping levels of $x$ $\leq$ 0.01, the system remains paramagnetic down…

Strongly Correlated Electrons · Physics 2018-12-04 Guoxiang Zhi , Kai Wang , Haojie Zhang , Cui Ding , Shengli Guo , Yilun Gu , Licheng Fu , F. L. Ning

The electronic and magnetic properties of TiO$_2$, TiO$_{1.75}$, TiO$_{1.75}$N$_{0.25}$, and TiO$_{1.75}$F$_{0.25}$ compounds have been studied by using \emph{ab initio} electronic structure calculations. TiO$_2$ is found to evolve from a…

Strongly Correlated Electrons · Physics 2011-06-24 Sudhir K. Pandey , R. J. Choudhary

The first-principles full-potential linearized augmented plane-wave method based on density functional theory is used to investigate electronic structure and magnetic properties of hypothetical binary compounds of I$^{A}$ subgroup elements…

Materials Science · Physics 2008-09-14 Krzysztof Zberecki , Leszek Adamowicz , Michał Wierzbicki

Experimental studies of Zn1-xCoxO as thin films or nanocrystals have found ferromagnetism and Curie temperatures above room temperature and that p- or n-type doping of Zn1-xCoxO can change its magnetic state. Bulk Zn1-xCoxO with a low…

Materials Science · Physics 2013-05-29 Charles H. Patterson

The effect of additional doping of charge impurities was investigated in a ferromagnetic semiconductor Zn$_{1-x}$Cr$_{x}$Te. It was found that the doping of iodine, which is expected to act as an n-type dopant in ZnTe, brought about a…

Materials Science · Physics 2009-11-11 Nobuhiko Ozaki , Nozomi Nishizawa , Stephane Marcet , Shinji Kuroda , Osamu Eryu , Koki Takita

A GaN film doped with 8.2 % Mn was grown by the molecular-beam-epitaxy technique. Magnetization measurements show that this highly Mn-doped GaN film exhibits ferromagnetism above room temperature. It is also revealed that the…

Strongly Correlated Electrons · Physics 2009-11-11 S. Yoshii , S. Sonoda , T. Yamamoto , T. Kashiwagi , M. Hagiwara , Y. Yamamoto , Y. Akasaka , K. Kindo , H. Hori

Ferromagnetism and accompanying large negative magnetoresistance in Pb-substituted Bi-Sr-Co-O misfit-layer compound are investigated in detail. Recent structural analysis of (Bi,Pb)${}_2$Sr${}_{3}$Co${}_2$O${}_9$, which has been believed to…

Strongly Correlated Electrons · Physics 2009-10-31 I. Tsukada , T. Yamamoto , M. Takagi , T. Tsubone , S. Konno , K. Uchinokura

We report room temperature ferromagnetism in Ni doped CeO2 nanoparticles using X-ray diffraction (XRD), high resolution transmission electron microscopy (HR-TEM), and dc magnetization measurements. Nanoparticles of Ce1-xNixO2 (0.0 \leq x…

Mesoscale and Nanoscale Physics · Physics 2011-01-31 Shalendra Kumar , Young. Joo. Kim , B. H. Koo , C. G. Lee

We carry out a first-principles investigation on magnetism, electronic structure, magneto-optical effects and topological property of newly grown cubic double perovskite Ba2NiOsO6 and its (111) (Ba2NiOsO6)/(BaTiO3)10 superlattice, based on…

Strongly Correlated Electrons · Physics 2019-10-02 Hai-Shuang Lu , Guang-Yu Guo

The appearance of static magnetism, nanoscopically coexisting with superconductivity, is shown to be a general feature of optimally electron-doped LnFe(1-x)Ru(x)AsO(1-y)F(y) superconductor (Ln - lanthanide ion) upon isovalent substitution…

Superconductivity · Physics 2013-04-29 S. Sanna , P. Carretta , R. De Renzi , G. Prando , P. Bonfà , M. Mazzani , G. Lamura , T. Shiroka , Y. Kobayashi , M. Sato

Ferromagnetic ordering is reported in the post-annealed samples of Co doped n-GaN formed by Co+ implantation. A maximum Curie temperature ~ 250K is recorded for the sample with 8 atomic percent Co. Particle induced x-ray emission-channeling…

Conventional magnetism occurs in systems which contain transition metals or rare earth ions with partially filled $d$ or $f$ shells. It is theoretically predicted that compounds of groups IA and IIA with IV and V, in some structural phases,…

Materials Science · Physics 2017-03-28 Seyed Mojtaba Rezaei Sani , Omid Khakpour

Molecule oxygen resembles 3d and 4f metals in exhibiting long-range spin ordering and electron strong correlated behaviors in compounds. The ferromagnetic spin ordering and half-metallicity, however, are quite elusive and have not been well…

Materials Science · Physics 2020-07-14 Jun Deng , Jiangang Guo , Xiaolong Chen

Ion implantation of Mn ions into hole-doped GaP has been used to induce ferromagnetic behavior above room temperature for optimized Mn concentrations near 3 at.%. The magnetism is suppressed when the Mn dose is increased or decreased away…

Magneto-optic studies of ZnO doped with transition metals Co, Mn, V and Ti indicate a significant magnetic circular dichroism (MCD) at the ZnO band edge at room temperature, together with an associated dispersive Faraday rotation. Similar…

Strongly Correlated Electrons · Physics 2009-11-11 JR Neal , AJ Behan , RM Ibrahim , H J Blythe , M Ziese , AM Fox , GA Gehring

We present the results of a computational study of ZnO in the presence of Co and Mn substitutional impurities. The goal of our work is to identify potential ferromagnetic ground states within the (Zn,Co)O or (Zn,Mn)O material systems that…

Materials Science · Physics 2021-03-09 Nicola A. Spaldin

We studied structural, electronic and magnetic properties of a cubic perovskite BaFeO$_{3-\delta}$ ($0 \le \delta \le 0.5$) within the density functional theory using a generalized gradient approximation and a GGA+U method. According to our…

Materials Science · Physics 2016-01-20 I. V. Maznichenko , S. Ostanin , L. V. Bekenov , V. N. Antonov , I. Mertig , A. Ernst

We report the structural and magnetic properties of ZnO single crystals implanted at 623 K with up to 10 at. % of Ni. As revealed by X-ray diffraction, crystalline fcc-Ni nanoparticles were formed inside ZnO. The magnetic behavior…

Materials Science · Physics 2007-05-23 Shengqiang Zhou , K. Potzger , Gufei Zhang , F. Eichhorn , W. Skorupa , M. Helm , J. Fassbender