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Related papers: Magnetically induced phonon splitting in ACr$_2$O$…

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The splitting of magnetic resonance induced by a linearly polarized frequency comb is presented for Hanle experimental configuration. The experiment is carried out with thermal Rubidium atoms in an anti-relaxation coated glass cell. The…

Atomic Physics · Physics 2022-02-01 Rita Behera , Swarupananda Pradhan

In order to explore the consequences of spin-orbit coupling on spin-phonon interactions in a set of chemically-similar mixed metal oxides, we measured the infrared vibrational properties of Co$_4B_2$O$_9$ ($B$ = Nb, Ta) as a function of…

Materials Science · Physics 2023-05-26 K. Park , J. Kim , S. Choi , S. Fan , C. Kim , D. G. Oh , N. Lee , S. -W. Cheong , V. Kiryukhin , Y. J. Choi , D. Vanderbilt , J. H. Lee , J. L. Musfeldt

We propose a mechanism to obtain chiral phonon-like excitations from the bond-dependent magnetoelastic couplings in the absence of out-of-plane magnetization and magnetic fields. By mapping the hybrid excitation to its phononic analog, we…

Mesoscale and Nanoscale Physics · Physics 2025-01-03 Bowen Ma , Z. D. Wang , Gang V. Chen

Spin-phonon coupling originated from spin-lattice correlation depends upon different exchange interactions in transition metal oxides containing 3d magnetic ions. Spin-lattice coupling can influence the coupling mechanism in magnetoelectric…

Strongly Correlated Electrons · Physics 2021-09-09 P. Pal , Shalini Badola , P. K. Biswas , Ranjana R. Das , Surajit Saha , S. D. Kaushik , P. N. Vishwakarma , A. K. Singh

Microscopic coupling between the electron spin and the lattice vibration is responsible for an array of exotic properties from morphic effects in simple magnets to magnetodielectric coupling in multiferroic spinels and hematites.…

Materials Science · Physics 2022-07-22 Mingqiang Gu , Y. H. Bai , G. P. Zhang , Thomas F. George

We show that 1:1 ordering of A$'$ and A$''$ cations in A$'_{1/2}$A$''_{1/2}$B$_2$X$_4$ magnetic spinels results in appearance of magnetoelectric properties. Possible value of magnetically induced electric polarization is calculated using…

Strongly Correlated Electrons · Physics 2014-05-15 N. V. Ter-Oganessian

Magnon-polarons, a type of hybridized excitations between magnons and phonons, were first reported in yttrium iron garnet as anomalies in the spin Seebeck effect responses. Here we report an observation of antiferromagnetic (AFM)…

Correlated materials with competing spin-orbit and crystal-field interactions can host composite spin-orbital magnons that are highly susceptible to structural and electronic perturbations, enabling the control of magnetic dynamics beyond…

We investigated the magnetic and magnetoelastic properties of MnSc$_2$Se$_4$ single crystals at low temperature under a magnetic field directed along the crystallographic [111] axis. The magnetization data at low temperature show a linear…

Strongly Correlated Electrons · Physics 2024-10-29 J. Sourd , Y. Skourski , L. Prodan , V. Tsurkan , A. Miyata , J. Wosnitza , S. Zherlitsyn

Spinel structured compounds, $AB_2O_4$, are special because of their exotic multiferroic properties. In $ACr_2O_4$ ($A$=$Co$, $Mn$,$Fe$), a switchable polarization has been observed experimentally due to a non-collinear magnetic spin order.…

Materials Science · Physics 2020-02-07 Debashish Das , Aftab Alam

A magneto-optical survey was conducted for HgCr$_2$O$_4$ powder samples under pulsed high magnetic fields of up to 55 T. Intensity changes in magnetic fields observed for the exciton-magnon-phonon optical transition spectra coincide well…

Materials Science · Physics 2015-05-14 Daisuke Nakamura , Atsuhiko Miyata , Hiroaki Ueda , Shojiro Takeyama

Quantum tunneling of the magnetization is a major obstacle to the use of single-molecule magnets (SMMs) as basic constituents of next-generation storage devices. In this context, phonons are often only considered (perturbatively) as…

Strongly Correlated Electrons · Physics 2020-08-12 K. Irländer , J. Schnack

Spin-phonon interaction plays an important role in 2D magnetic materials and motivates the development of next-generation spin- and charge-dependent microelectronic devices. Understanding the spin-phonon interaction by tuning the growth…

Two-dimensional (2D) magnetic systems possess versatile magnetic order and can host tunable magnons carrying spin angular momenta. Recent advances show angular momentum can also be carried by lattice vibrations in the form of chiral…

Polar phonons of HgCr2S4 and CdCr2S4 are studied by far-infrared spectroscopy as a function of temperature and external magnetic field. Eigenfrequencies, damping constants, effective plasma frequencies and Lyddane-Sachs-Teller relations,…

Strongly Correlated Electrons · Physics 2008-06-26 T. Rudolf , Ch. Kant , F. Mayr , J. Hemberger , V. Tsurkan , A. Loidl

Recent neutron scattering experiments suggested that frustrated magnetic interactions give rise to antiferromagnetic spiral and fractional skyrmion lattice phases in MnSc$_2$S$_4$. Here, to trace the signatures of these modulated phases, we…

Strongly Correlated Electrons · Physics 2022-06-30 B. Tóth , K. Amelin , T. Rõõm , U. Nagel , V. Tsurkan , L. Prodan , I. Kézsmárki , S. Bordács

We present an elaborate electron-spin resonance study of the low-energy dynamics and magnetization in the ordered phase of the magnetically frustrated spinel ZnCr$_2$O$_4$. We observe several resonance modes corresponding to different…

Strongly Correlated Electrons · Physics 2010-11-29 V. N. Glazkov , A. M. Farutin , V. Tsurkan , H. -A. Krug von Nidda , A. Loidl

Spin-phonon interactions in 2D magnetic materials are crucial in advancing next-generation spintronic devices. Therefore, identifying new materials with significant spin-phonon interactions is of great importance. In this context, MnSe,…

Materials Science · Physics 2025-02-27 Suman Kalyan Pradhan , Arnab Bera , Soham Das , Yongli Yu , Jicheng Wang , Rui Wu

Conventional ab initio methods fail to describe the emergence of chiral phonons driven by electronic ordering. Here, we develop an ab initio framework, grounded in molecular Berry curvature (MBC), that captures electronic-order-driven…

Materials Science · Physics 2025-11-25 Shuai Zhang , Mengqi Wang , Tiantian Zhang

The possibility of non-s-wave superconductivity induced by phonons is investigated using a simple model that is inspired by Sr$_2$RuO$_4$. The model assumes a two-dimensional electronic structure, a two-dimensional spin-fluctuation…

Superconductivity · Physics 2009-11-11 I. Schnell , I. I. Mazin , Amy Y. Liu