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Hexagonal HoMnO3, a two-dimensional Heisenberg antiferromagnet, has been studied via inelastic neutron scattering. A simple Heisenberg model with a single-ion anisotropy describes most features of the spin-wave dispersion curves. However,…

Strongly Correlated Electrons · Physics 2018-05-29 Taehun Kim , Jonathan C. Leiner , Kisoo Park , Joosung Oh , Hasung Sim , Kazuki Iida , Kazuya Kamazawa , Je-Geun Park

In magnetic heterostructures with broken inversion symmetry, the Rashba effect gives rise to a gradient-free interaction between magnons and phonons, which we term interfacial spin-lattice coupling. Here, we investigate the dynamic…

Mesoscale and Nanoscale Physics · Physics 2026-03-23 Gyungchoon Go , Se Kwon Kim

We consider spin injection driven by nonequilibrium chiral phonons from a chiral insulator into an adjacent metal. Phonon-spin conversion arises from the coupling of the electron spin with the microrotation associated with chiral phonons.…

Mesoscale and Nanoscale Physics · Physics 2024-11-05 Takumi Funato , Mamoru Matsuo , Takeo Kato

We report a comprehensive study of the tuning with electric fields of the resonant magneto-exciton optical phonon coupling in gated graphene. For magnetic fields around $B \sim 25$ T which correspond to the range of the fundamental…

Mesoscale and Nanoscale Physics · Physics 2014-05-14 P. Leszczynski , Z. Han , A. A. L. Nicolet , B. A. Piot , P. Kossacki , M. Orlita , V. Bouchiat , D. M. Basko , M. Potemski , C. Faugeras

Interaction between quasiparticles of a different nature, such as magnons and phonons in a magnetic medium, leads to the mixing of their properties and the formation of hybrid states in the areas of intersection of individual spectral…

Mesoscale and Nanoscale Physics · Physics 2023-11-01 Pascal Frey , Dmytro A. Bozhko , Victor S. L'vov , Burkard Hillebrands , Alexander A. Serga

Recent advances in magnon spintronics have ignited interest in the interactions between the spin and elastic subsystems of magnetic materials. These interactions suggest a dynamic connection between collective excitations of spins,…

We experimentally and theoretically demonstrate that nonlinear spin-wave dynamics can induce an effective resonant interaction between non-resonant magnon modes in a yttrium iron garnet disk. Under strong pumping near the ferromagnetic…

Spin-phonon coupling and magnetodielectric effects of ZnCr2Se4 were investigated by means of infrared (IR) spectroscopy as a function of temperature and magnetic field. ZnCr2Se4 is dominated by ferromagnetic exchange but undergoes…

Strongly Correlated Electrons · Physics 2007-07-05 T. Rudolf , Ch. Kant , F. Mayr , J. Hemberger , V. Tsurkan , A. Loidl

Nonlinear frequency conversion by optical rectification, as well as difference- and sum-frequency generation are fundamental processes for producing electromagnetic radiation at different frequencies. Here, we demonstrate that coherently…

We present experimental results on the conversion of a spin current into a charge current by spin pumping into the Dirac cone with helical spin polarization of the elemental topological insulator (TI) {\alpha}-Sn[1-3]. By angle-resolved…

We study the hybrid excitations due to the coupling between surface optical phonons of a polar insulator substrate and plasmons in the valley-spin-polarized metal phase of silicene under an exchange field. We perform the calculations within…

Mesoscale and Nanoscale Physics · Physics 2018-11-30 M. Mirzaei , T. Vazifehshenas , T. Salavati-fard , M. Farmanbar , B. Tanatar

Strengthening magnetoacoustic coupling is crucial to the improvement of the surface acoustic wave (SAW)-driven spintronics devices. A key challenge in enhancing magnetoacoustic coupling is minimizing the phonon and magnon dissipation of the…

Applied Physics · Physics 2025-04-03 Shuting Cui , Fa Chen , Liyang Liao , Jiacheng Lu , Rui Xiong , Xiaofei Yang , Yoshichika Otani , Yue Zhang , Wei Luo

Due to the spin-orbit coupling (SOC) an electric current flowing in a normal metal or semiconductor can induce a bulk magnetic moment. This effect is known as the Edelstein (EE) or magneto-electric effect. Similarly, in a bulk…

Mesoscale and Nanoscale Physics · Physics 2016-08-08 François Konschelle , Ilya V. Tokatly , F. Sebastián Bergeret

Just as electronic shot noise in driven conductors results from the granularity of charge and the statistical variation in the arrival times of charge carriers, there are predictions for fundamental noise in magnon currents due to angular…

Mesoscale and Nanoscale Physics · Physics 2024-03-18 Renjie Luo , Xuanhan Zhao , Tanner J. Legvold , Liyang Chen , Changjiang Liu , Deshun Hong , Anand Bhattacharya , Douglas Natelson

A magnonic spin current crossing a ferromagnet-metal interface is accompanied by spin current shot noise arising from the discrete quanta of spin carried by magnons. In thin films, e.g., the spin of so-called squeezed magnons have been…

Mesoscale and Nanoscale Physics · Physics 2023-10-20 Luise Siegl , Michaela Lammel , Akashdeep Kamra , Hans Huebl , Wolfgang Belzig , Sebastian T. B. Goennenwein

We present a methodology to address, from first principles, charge-spin interconversion in two-dimensional materials with spin-orbit coupling. Our study relies on an implementation of density functional theory based quantum transport…

Mesoscale and Nanoscale Physics · Physics 2022-01-05 Maedeh Rassekh , Hernán Santos , Andrea Latge , Leonor Chico , Saber Farjami Shayesteh , Juan Jose Palacios

In this work, the spin pumping technique was employed to investigate the anomalous inverse spin Hall effect in BIG/NiO/Fe samples where BIG[(Bi,Tm)3(Fe,Ga)5O12] exhibits perpendicular magnetic anisotropy. Our results reveal an intriguing…

Mesoscale and Nanoscale Physics · Physics 2023-12-13 J. E. Abrão , A. R. Rodrigues , H. F. Ding , S. Bedanta , A. Azevedo

Recent experiments [1],[2] which measured the spectrum of the Goldstone collective mode of coherently precessing state in 3He-B are discussed using the presentation of the coherent spin precession in terms of the Bose-Einstein condensation…

Other Condensed Matter · Physics 2008-07-24 G. E. Volovik

Conversion of traveling magnons into an electron carried spin current is demonstrated in a time resolved experiment using a spatially separated inductive spin-wave source and an inverse spin Hall effect (ISHE) detector. A short spin-wave…

Mesoscale and Nanoscale Physics · Physics 2013-09-26 A. V. Chumak , A. A. Serga , M. B. Jungfleisch , R. Neb , D. A. Bozhko , V. S. Tiberkevich , B. Hillebrands

The angular momentum interconversion between electron spin and other type of angular momenta is useful to develop new spintronic functionalities. The conversions from the angular momentum of photon and mechanical rotation to ferromagnetic…

Mesoscale and Nanoscale Physics · Physics 2021-06-09 R. Sasaki , Y. Nii , Y. Onose
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