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We report the observation of a magnetic polarization of the O\,$2p$-states in YMn$_2$O$_5$ through the use of soft X-ray resonant scattering at the oxygen $K$-edge. Remarkably, we find that the temperature dependence of the integrated…

Strongly Correlated Electrons · Physics 2015-03-19 S. Partzsch , S. B. Wilkins , J. P. Hill , E. Schierle , E. Weschke , D. Souptel , B. Büchner , J. Geck

We study the behavior of the magnetization and the magnetic susceptibility of molecular magnets with complex bridging structure. Our computations are based on a post-Hartree-Fock method accounting for the intricate network of interatomic…

Strongly Correlated Electrons · Physics 2020-03-30 M. Georgiev , H. Chamati

The complete magnetic and multiferroic phase diagram of Mn$_{1-x}$Co$_{x}$WO$_4$ single crystals is investigated by means of magnetic, heat capacity, and polarization experiments. We show that the ferroelectric polarization…

Strongly Correlated Electrons · Physics 2012-07-13 K. -C. Liang , Y. Q. Wang , Y. Y. Sun , B. Lorenz , F. Ye , J. A. Fernandez-Baca , H. A. Mook , C. W. Chu

Orthorhombic HoMnO3 is a multiferroic in which Mn antiferromagnetic order induces ferroelectricity. A second transition occurs within the multiferroic phase, in which a strong enhancement of the ferroelectric polarization occurs…

Strongly Correlated Electrons · Physics 2021-01-04 Y. W. Windsor , M. Ramakrishnan , L. Rettig , A. Alberca , T. Lippert , C. W. Schneider , U. Staub

Here, we report the catalytic degradation of organic compounds by exploiting the magnetoelectric (ME) nature of cobalt ferrite-bismuth ferrite (CFO-BFO) core-shell nanoparticles. The combination of magnetostrictive CFO with the multiferroic…

The layered material Mn$_3$Si$_2$Te$_6$, with alternating stacking honeycomb and triangular layers, is attracting considerable attention due to its rich physical properties. Here, using density functional theory and classical Monte Carlo…

Strongly Correlated Electrons · Physics 2023-02-23 Yang Zhang , Ling-Fang Lin , Adriana Moreo , Elbio Dagotto

We report terahertz spectroscopic measurements of quantum spin dynamics in the spin-1/2 honeycomb magnet Na$_2$Co$_2$TeO$_6$ as a function of applied magnetic field with different terahertz polarizations. Distinct field dependencies of the…

Strongly Correlated Electrons · Physics 2023-10-12 Patrick Pilch , Laur Peedu , Anup Kumar Bera , S. M. Yusuf , Urmas Nagel , Toomas Rõõm , Zhe Wang

With a combined ab initio density functional and model Hamiltonian approach we establish that in the recently discovered multiferroic phase of the manganite Sr$_{1/2}$Ba$_{1/2}$MnO$_{3}$ the polar distortion of Mn and O ions is stabilized…

Materials Science · Physics 2015-03-09 Gianluca Giovannetti , Sanjeev Kumar , Carmine Ortix , Massimo Capone , Jeroen van den Brink

Understanding the role of spin-orbit coupling (SOC) has been crucial to controlling magnetic anisotropy in magnetic multilayer films. It has been shown that electronic structure can be altered via interface SOC by varying the superlattice…

Strongly Correlated Electrons · Physics 2017-01-04 Alexander C. Bornstein , Benjamin J. Chapman , Nirmal J. Ghimire , David G. Mandrus , David S. Parker , Minhyea Lee

The control of magnetization via the application of an electric field, known as magnetoelectric coupling, is among the most fascinating and active research areas today. In addition to fundamental scientific interest, magnetoelectric effects…

Materials Science · Physics 2009-11-16 J. D. Burton , E. Y. Tsymbal

Magnetoelectric (ME) effect refers to the coupling between electric and magnetic fields in a medium resulting in electric polarization induced by magnetic fields and magnetization induced by electric fields. The linear ME effect in certain…

Atomic Physics · Physics 2021-03-16 Sushree S. Sahoo , Soumya R. Mishra , G. Rajalakshmi , Ashok K. Mohapatra

The magnetic field induced rearrangement of the cycloidal spin structure in ferroelectric mono-domain single crystals of the room-temperature multiferroic BiFeO$_3$ is studied using small-angle neutron scattering (SANS). The cycloid…

Strongly Correlated Electrons · Physics 2018-04-11 S. Bordács , D. G. Farkas , J. S. White , R. Cubitt , L. DeBeer-Schmitt , T. Ito , I. Kézsmárki

The kamiokite, Fe$_2$Mo$_3$O$_8$, is regarded as a promising material exhibiting giant magnetoelectric (ME) effect at the relatively high temperature $T$. Here, we explore this phenomenon on the basis of first-principles electronic…

Materials Science · Physics 2019-11-13 I. V. Solovyev , S. V. Streltsov

The magneto-electric (ME) coupling on spin-wave resonances in single-crystal Cu2OSeO3 was studied by a novel technique using electron spin resonance combined with electric field modulation. An external electric field E induces a magnetic…

Strongly Correlated Electrons · Physics 2015-06-04 A. Maisuradze , A. Shengelaya , H. Berger , D. M. Djokić , H. Keller

The chiral components in the magnetic order in multiferroic MnWO4 have been studied by neutron diffraction using spherical polarization analysis as a function of temperature and of external electric field. We show that sufficiently close to…

Strongly Correlated Electrons · Physics 2009-07-31 T. Finger , D. Senff , K. Schmalzl , W. Schmidt , L. P. Regnault , P. Becker , L. Bohaty , M. Braden

The magnetic, thermodynamic, and pyroelectric properties of LiFeP$_2$O$_7$ single crystals are investigated with emphasis on the magnetoelectric interaction of the electrical polarization with the magnetic order parameter. The magnetic…

Strongly Correlated Electrons · Physics 2012-09-13 K. -C. Liang , W. Zhang , B. Lorenz , Y. Y. Sun , P. S. Halasyamani , C. W. Chu

We investigate a large variation in a diagonal component of the linear magnetoelectric (ME) susceptibility in a polar ferrimagnet Mn2Mo3O8 while changing the magnetic-ion site from orbital-quenched Mn2+ to Fe2+ with strong uniaxial…

Strongly Correlated Electrons · Physics 2017-01-30 T. Kurumaji , S. Ishiwata , Y. Tokura

We theoretically study electrically tunable magnetoplasmons in a monolayer of silicene or germanene. We derive the dynamical response function and take into account the effects of strong spin-orbit coupling (SOC) and of an external electric…

Mesoscale and Nanoscale Physics · Physics 2015-04-22 M. Tahir , P. Vasilopoulos

The correlation between static magnetoelectric coupling and magnetic structure was investigated in $TbMn_{0.98}Fe_{0.02}O_{3}$ with magnetic field up to 8 T and down to 2 K. Single-crystal neutron diffraction experiments reveal a…

We propose a microscopic theory for magnetic switching of electric polarization (P) in the spin-spiral multiferroics by taking TbMnO3 and DyMnO3 as examples. We reproduce their phase diagrams under a magnetic field H_ex by Monte-Carlo…

Strongly Correlated Electrons · Physics 2010-10-29 Masahito Mochizuki , Nobuo Furukawa
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