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We have studied a nearly stoichiometric insulating Y$_{0.97(2)}$Cr$_{0.98(2)}$O$_{3.00(2)}$ single crystal by performing measurements of magnetization, heat capacity, and neutron diffraction. Albeit that the YCrO$_3$ compound behaviors like…

Strongly Correlated Electrons · Physics 2020-09-23 Yinghao Zhu , Ying Fu , Bao Tu , Tao Li , Jun Miao , Qian Zhao , Si Wu , Junchao Xia , Pengfei Zhou , Ashfia Huq , Wolfgang Schmidt , Zikang Tang , Zhubing He , Hai-Feng Li

The first observation of microwave magnetoelectric (ME) interactions through ferromagnetic resonance (FMR) in bilayers of single crystal ferromagnetic-piezoelectric oxides and a theoretical model for the effect are presented. An electric…

Materials Science · Physics 2009-11-10 S. Shastry , G. Srinivasan , M. I. Bichurin , V. M. Petrov , A. S. Tatarenko

In order to probe the magnetic ground state, we have carried out temperature dependent magnetic Compton scattering experiments on an oriented single crystal of magnetite (Fe$_3$O$_4$), together with the corresponding first-principles band…

Strongly Correlated Electrons · Physics 2007-10-11 Yinwan Li , P. A. Montano , B. Barbiellini , P. E. Mijnarends , S. Kaprzyk , A. Bansil

We report results of the Raman measurements for SrRu$_2$O$_6$ having extraordinary high N$\acute{\textrm{e}}$el temperature for a layered material. No additional phonon modes were detected at the temperature of magnetic transition thus…

Materials Science · Physics 2019-02-13 Yu. S. Ponosov , E. V. Komleva , D. A. Zamyatin , R. I. Walton , S. V. Streltsov

We present the Raman scattering results on layered 2D semiconducting ferromagnetic compound CrSiTe$_3$. Four Raman active modes, predicted by symmetry, have been observed and assigned. The experimental results are supported by DFT…

Materials Science · Physics 2018-10-16 A. Milosavljević , A. Šolajić , J. Pešić , Yu Liu , C. Petrovic , N. Lazarević , Z. V. Popović

A sigma-phase Fe65.9V34.1 alloy was investigated with the AC magnetic susceptibility as a function of temperature, frequency and external magnetic field. An evidence was found that its magnetism shows features characteristic of a reentrant…

Strongly Correlated Electrons · Physics 2015-12-31 Maria Balanda , Stanislaw M. Dubiel

The temperature dependence of the electrical resistivity and magnetoresistance of Xe-ion beam sputtered Fe-Cr multilayers has been investigated. The electrical resistivity between 5 and 300 K in the fully ferromagnetic state, obtained by…

Materials Science · Physics 2009-11-07 A. K. Majumdar , A. F. Hebard , Avinash Singh , D. Temple

We report on neutron diffraction, thermal expansion, magnetostriction, dielectric, and specific heat measurements on polycrystalline FeCr2S4 in external magnetic fields. The ferrimagnetic ordering temperatures $T_{\mathrm{C}}\approx 170$ K…

We investigated the evolution of magnetism in the UIr1-xRhxGe system by the systematic study of high-quality single crystals. Lattice parameters of both parent compounds are very similar resulting in almost identical nearest interatomic…

We report a soft x-ray resonant magnetic scattering study of the spin configuration in multiferroic thin films of Co$_{0.975}$Ge$_{0.025}$Cr$_2$O$_4$ (Ge-CCO) and CoCr$_2$O$_4$ (CCO), under low- and high-magnetic fields, from 0.2 T up to…

Strongly Correlated Electrons · Physics 2021-02-24 N Ortiz Hernandez , S Parchenko , J R L Mardegan , M Porer , E Schierle , E Weschke , M Ramakrishnan , M Radovic , J A Heuver , B Noheda , N Daffe , J Dreiser , H. Ueda , U Staub

The electrical resistance of CeFeAsO$_{1-x}$F$_x$ (x = 0.06 and 0.08) has been measured in a magnetic field up to 40T. At zero field, the sample with x = 0.06 shows a structural phase transition around T$_S$~100K, followed by a…

Superconductivity · Physics 2013-07-16 T. Shang , L. Jiao , J. Dai , F. F. Balakirev , W. Z. Hu , N. L. Wang , H. Q. Yuan

We report on the microwave, terahertz (THz), infrared and Raman spectroscopic studies of $BiMn_{7}O_{12}$ ceramics, shedding more light into the nature of two structural phase transitions and their possible relation with ferroelectricity in…

Materials Science · Physics 2024-01-08 A. Maia , M. Kempa , V. Bovtun , R. Vilarinho , C. Kadlec , J. Agostinho Moreira , A. A. Belik , P. Proschek , S. Kamba

We study the magnetocapacitance (MC) effect and magnetoelectric (ME) coupling in spin-flop driven antiferromagnet Co4Ta2O9. The magnetocapacitance data at high magnetic fields are analyzed by phenomenological Ginzburg-landau theory of…

Materials Science · Physics 2017-07-12 S. Chaudhary , P. Srivastava , S. Patnaik

By means of symmetry analysis, density functional theory calculations, and Monte Carlo simulations we show that goethite, $\alpha$-FeOOH, is a linear magnetoelectric below its N\'{e}el temperature $T_{\rm N}=400$ K. The experimentally…

Strongly Correlated Electrons · Physics 2017-11-28 N. V. Ter-Oganessian , A. A. Guda , V. P. Sakhnenko

We present a systematic study of the structure and lattice dynamics at room temperature, and the phonon behavior at low temperatures in orthorhombic Gd$_{1-x}$Y$_{x}$MnO$_{3}$ manganites, with 0 $\leq$ x $\leq$ 0.4, using powder x-ray…

Strongly Correlated Electrons · Physics 2014-12-31 R. Vilarinho , E. C. Queirós , A. Almeida , P. B. Tavares , J. Agostinho Moreira

We report a correlation between structural phase stability and magnetic properties of Co2FeO4 spinel oxide. We employed mechanical alloying and subsequent annealing to obtain the desired samples. The particle size of the samples changes…

Materials Science · Physics 2008-10-03 I. Panneer Muthuselvam , R. N. Bhowmik

We demonstrate room temperature ferroelectricity in the epitaxial thin films of magnetoelectric GaFeO3. Piezo-force measurements show a 180o phase shift of piezoresponse upon switching the electric field indicating nanoscale…

Materials Science · Physics 2015-06-15 Somdutta Mukherjee , Amritendu Roy , Sushil Auluck , Rajendra Prasad , Rajeev Gupta , Ashish Garg

The observation of strongly coupled lattice and spin dynamics in altermagnet CoF$_2$ is reported. On the background of the expected spin-phonon interaction leading to renormalization of all phonons at the Neel temperature an additional…

Materials Science · Physics 2024-05-14 M. A. Prosnikov , M. Bal , R. V. Pisarev , P. C. M. Christianen , A. M. Kalashnikova

Lattice stability in a model of antiferromagnetic ring coupled to adiabatic phonons is investigated for different values of the spin and numbers of magnetic sites. The magneto-elastic transition is shown to be heavily affected by the spin…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 L. Spanu , A. Parola

We report experimental and theoretical studies on the magnetoelastic interactions in MnPS$_3$. Raman scattering response measured as a function of temperature shows a blue shift of the Raman active modes at 120.2 and 155.1 cm$^{-1}$, when…