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Related papers: Weak ferromagnetism in cobalt oxalate crystals

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New Zn1.5Co1.5B7O13Br boracite crystals were grown by chemical transport reactions in quartz ampoules, at a temperature of 1173 K. The crystal structure was characterized by X-ray diffraction. The crystals present an orthorhombic structure…

Transport property is investigated in [Ca$_{2}$CoO$_{3-\delta}$]$_{0.62}$[CoO$_{2}$] single crystals obtained by varying annealing conditions. The $\rho_{ab}(T)$ exhibits a resistivity minimum, and the temperature corresponding to this…

Strongly Correlated Electrons · Physics 2007-05-23 X. G. Luo , X. H. Chen , G. Y. Wang , C. H. Wang , Y. M. Xiong , H. B. Song , H. Li , X. X. Lu

Anatase Ti0.96Co0.04O2 films were grown epitaxially on SrTiO3 (001) substrates by using plused laser deposition with in-situ reflection high-energy electron diffraction. The oxygen partial pressure, PO2, during the growth was systematically…

Materials Science · Physics 2009-11-07 D. H. Kim , J. S. Yang , K. W. Lee , S. D. Bu , T. W. Noh , S. -J. Oh , Y. -W. Kim , J. -S. Chung , H. Tanaka , H. Y. Lee , T. Kawai

The observed correlation of oxygen vacancies and room temperature ferromagnetic ordering in Co doped ZnO1-o nanoparticles reported earlier (Naeem et al Nanotechnology 17, 2675-2680) has been further explored by transport and optical…

Materials Science · Physics 2007-12-10 M. Naeem , S. K. Hasanain , A. Mumtaz

Single crystals of the new ternary compound Ce2Ga12Pt were prepared by the self-flux technique. The crystal structure with the space group P4/nbm was established from single-crystal X-ray diffraction data and presents a derivative of the…

Strongly Correlated Electrons · Physics 2012-06-12 Olga Sichevych , Cornelius Krellner , Yuri Prots , Yuri Grin , Frank Steglich

The possibility of using exchange bias in ferromagnetic-antiferromagnetic system to over come the effect of superparamagnetism in small cobalt nanoparticles is explored. We have prepared Co-Cr2O3 nanocomposite powders using a chemical…

Materials Science · Physics 2009-11-11 P Anil Kumar , K Mandal

A promising approach in designing composite materials with unusual physical behavior combines solid nanostructures and orientationally ordered soft matter at the mesoscale. Such composites not only inherit properties of their constituents…

Soft Condensed Matter · Physics 2017-01-19 Andrew J. Hess , Qingkun Liu , Ivan I. Smalyukh

We present magnetic detection of a single, 2 {\mu}m diameter cobalt microparticle using an atomic magnetometer based on a microfabricated vapor cell. These results represent an improvement by a factor of 105 in terms of the detected…

This paper reports effect of thermally induced disorder on the magnetic properties of LaSrCoRuO6 double perovskite. While the ordered sample is antiferromagnetic, the disordered sample exhibits negative values of magnetization measured in…

Strongly Correlated Electrons · Physics 2010-08-10 P. S. R. Murthy , K. R. Priolkar , P. A. Bhobe , A. Das , P. R. Sarode , A. K. Nigam

We develop a model for high-Tc superconductors based on an electronic phase separation where low-and high-density domains are formed. At low temperatures this system may act as a granular superconductor forming an array of Josephson…

Superconductivity · Physics 2014-09-12 E. V. L. de Mello , David Möckli

Detailed magnetization and magneto-transport measurements studies are carried out to unearth the anomalous magnetism of Pr in PrCoAsO compound. The studied PrCoAsO sample is single phase and crystallized in the tetragonal structure with…

Superconductivity · Physics 2014-01-21 Brajesh Tiwari , Anand Pal , V. P. S. Awana

The magnetic properties and magnetocaloric effect of an intermetallic compound $\mathrm{Er_2Rh_3Si}$ was investigated by performing temperature dependence of dc- and ac-magnetic susceptibility and isothermal magnetizations. Polycrystalline…

Strongly Correlated Electrons · Physics 2021-09-21 Baidyanath Sahu , Andre M. Strydom

We report the effects of cobalt doping on the magnetic properties of two-dimensional van der Waals ferromagnet Fe3GeTe2. Single crystals of (Fe{1-x}Cox)3GeTe2 with x=0-0.78 were successfully synthesized and characterized with x-ray…

Materials Science · Physics 2020-03-06 Cong-Kuan Tian , Cong Wang , Wei Ji , Jin-Chen Wang , Tian-Long Xia , Le Wang , Juan-Juan Liu , Hong-Xia Zhang , Peng Cheng

The magnetic glassy state is a fascinating phenomenon, which results from the kinetic arrest of the first order magnetic phase transition. Interesting properties, such as metastable magnetization and nonequilibrium magnetic phases, are…

We demonstrate a layer- and time-resolved measurement of ferromagnetic resonance (FMR) in a Ni81Fe19 / Cu / Co93Zr7 trilayer structure. Time-resolved x-ray magnetic circular dichroism has been developed in transmission, with resonant field…

Materials Science · Physics 2009-11-11 D. A. Arena , E. Vescovo , C. -C. Kao , Y. Guan , W. E. Bailey

We show that it is possible to tune the N\'eel temperature of nickel(II)-cobalt(II) oxide films by changing the Ni to Co ratio. We grow single crystalline micrometric triangular islands with tens of nanometers thickness on a Ru(0001)…

We present a thorough $^{77}$Se NMR study of a single crystal of the magnetoelectric compound Cu$_2$OSeO$_3$. The temperature dependence of the local electronic moments extracted from the NMR data is fully consistent with a magnetic phase…

Strongly Correlated Electrons · Physics 2010-09-17 M. Belesi , I. Rousochatzakis , H. C. Wu , H. Berger , I. V. Shvets , F. Mila , J. P. Ansermet

By studying numerically the phase-ordering kinetics of a two-dimensional ferromagnetic Ising model with quenched disorder -- either random bonds or random fields -- we show that a critical percolation structure forms in an early stage and…

Statistical Mechanics · Physics 2017-02-06 Federico Corberi , Leticia F. Cugliandolo , Ferdinando Insalata , Marco Picco

In this paper we report low-temperature magnetic properties of the rare-earth perovskite material YbAlO$_3$. Results of elastic and inelastic neutron scattering experiment, magnetization measurements along with the crystalline electrical…

Strongly Correlated Electrons · Physics 2019-05-10 L. S. Wu , S. E. Nikitin , M. Brando , L. Vasylechko , G. Ehlers , M. Frontzek , A. T. Savici , G. Sala , A. D. Christianson , M. D. Lumsden , A. Podlesnyak

We report extensive measurements on a new compound (Yb0.24Sn0.76)Ru that crystallizes in the cubic CsCl structure. Valence band photoemission and L3 x-ray absorption show no divalent component in the 4f configuration of Yb. Inelastic…

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