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Magnetoelectric coupling in multiferroic materials opens new routes to control the propagation of light. The new effects arise due to dynamic magnetoelectric susceptibility that cross-couples the electric and magnetic fields of light and…

Materials Science · Physics 2019-10-14 D. Szaller , A. Shuvaev , A. A. Mukhin , A. M. Kuzmenko , A. Pimenov

Intense radiation field can modify plasma properties, the corresponding refractive index, and lead to such nonlinear propagation effects as self-focusing. We estimate the corresponding effects in pair plasma, both in unmagnetized and…

High Energy Astrophysical Phenomena · Physics 2020-07-29 Maxim Lyutikov

Experimentally observed ultrafast all-optical magnetization reversal in ferrimagnetic metals and heterostructures based on antiferromagnetically coupled ferromagnetic $d-$ and $f-$metallic layers relies on intricate energy and angular…

Strongly Correlated Electrons · Physics 2016-03-02 Alexandra Kalashnikova , Veniamin Kozub

We have studied magnetization dynamics of a single Bi-YIG thin film by means of the high frequency power response induced by a slot line waveguide. Multiple absorption peaks that correspond to excitement states in magnetization dynamics…

Applied Physics · Physics 2020-04-22 Tetsunori Koda , Sho Muroga , Yasushi Endo

We show that the magnetization of a thin ferromagnetic (Ga,Mn)As layer can be modulated by picosecond acoustic pulses. In this approach a picosecond strain pulse injected into the structure induces a tilt of the magnetization vector M,…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 A. V. Scherbakov , A. S. Salasyuk , A. V. Akimov , X. Liu , M. Bombeck , C. Brüggemann , D. R. Yakovlev , V. F. Sapega , J. K. Furdyna , M. Bayer

We investigate spin-rectification phenomena in canted antiferromagnets, closely connected to the family of altermagnetic materials. Our results show that excitation efficiency is significantly enhanced by the Dzyaloshinskii-Moriya…

Mesoscale and Nanoscale Physics · Physics 2024-10-11 A. El Kanj , S. Mantion , I. Boventer , P. Bortolotti , V. Cros , A. Anane , O. Gomonay , R. Lebrun

Aiming at studying the mechanism of photo-excited precession of magnetization in ferromagnetic (Ga,Mn)As, magneto-optical (MO) and differential reflectivity (DR) temporal profiles are studied at relatively long and ultra-short time scales…

Materials Science · Physics 2016-02-17 T. Matsuda , H. Munekata

Femtosecond laser excitation of materials that exhibit magnetic spin textures promises advanced magnetic control via the generation of ultrafast and non-equilibrium spin dynamics. We explore such possibilities in ferrimagnetic [Fe(0.35…

The resonant interaction of electrically excited travelling surface acoustic waves and magnetization has been hitherto probed through the acoustic component. In this work it is investigated using time-resolved magneto-optical detection of…

Inspired by a recent pressure experiment in fcc Ni, we propose a simple method to use pressure to investigate the laser-induced femtosecond magnetism. Since the pressure effect on the electronic and magnetic properties can be well…

Materials Science · Physics 2015-12-15 M. S. Si , J. Y. Li , D. S. Xue , G. P. Zhang

We observe magnetization dynamics induced by spin momentum transfer in the noise spectra of current perpendicular to the plane giant magnetoresistance spin valves. The dynamics are observable only for those combinations of current direction…

Materials Science · Physics 2009-11-10 M. Covington , M. AlHajDarwish , Y. Ding , N. J. Gokemeijer , M. A. Seigler

We uncover and identify the regime for a magnetically and ferroelectrically controllable negative refraction of light traversing multiferroic, oxide-based metastructure consisting of alternating nanoscopic ferroelectric (SrTiO$_2$) and…

Optics · Physics 2017-11-01 R. Khomeriki , Levan Chotorlishvili , Igor Tralle , Jamal Berakdar

The spin transfer torque is a phenomenon in which angular momentum of a spin polarized electrical current entering a ferromagnet is transferred to the magnetization. The effect has opened a new research field of electrically driven…

Materials Science · Physics 2012-05-07 P. Nemec , E. Rozkotova , N. Tesarova , F. Trojanek , E. De Ranieri , K. Olejnik , J. Zemen , V. Novak , M. Cukr , P. Maly , T. Jungwirth

The practical difficulty in distinguishing the impact of magnetic circular dichroism and the inverse Faraday effect fuels intense debates over which mechanism predominantly drives the process of helicity dependent all-optical switching of…

We report single-color, time resolved magneto-optical measurements in ferromagnetic semiconductor (Ga,Mn)As. We demonstrate coherent optical control of the magnetization precession by applying two successive ultrashort laser pulses. The…

Materials Science · Physics 2009-11-13 E. Rozkotova , P. Nemec , N. Tesarova , P. Maly , V. Novak , K. Olejnik , M. Cukr , T. Jungwirth

We present a theory for the coherent magnetization dynamics induced by a focused ultrafast laser beam in magnetic films, taking into account nonthermal (inverse Faraday effect) and thermal (heating) actuation. The dynamic conversion between…

Mesoscale and Nanoscale Physics · Physics 2015-11-06 Ka Shen , Gerrit E. W. Bauer

We propose a nonlinear orbital magnetoelectric effect, which generates orbital magnetization quadratically in centrosymmetric materials where the linear orbital magnetoelectric effect is strictly forbidden. Using extended semiclassical…

Mesoscale and Nanoscale Physics · Physics 2026-05-19 Jinxiong Jia , Zhenhua Qiao , Jian Wang

Magnetic friction is a form of non-contact friction arising from the dissipation of energy in a magnet due to spin reorientation in a magnetic field. In this paper we study magnetic friction in the context of micromagnetics, using our…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 Ilari Rissanen , Lasse Laurson

First-principles calculation of nonlinear magneto-optical effects has become an indispensable tool to reveal the geometric and topological nature of electronic states and to understand light-matter interactions. While intriguingly rich…

Materials Science · Physics 2022-02-23 Haowei Chen , Meng Ye , Nianlong Zou , Bing-lin Gu , Yong Xu , Wenhui Duan

We compute the magnetization of graphene in a magnetic field, taking into account for generality the possibility of a mass gap. We concentrate on the physical regime where quantum oscillations are not observed due to the effect of the…

Mesoscale and Nanoscale Physics · Physics 2012-10-01 Sergey Slizovskiy , Joseph Betouras
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