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Related papers: Magneto-optical Kerr effect in an A-type antiferro…

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We propose a theoretical design of a structure combining a diluted magnetic semiconductor (DMS) layer with one-dimensional photonic crystal and show that it allows for a sizable (a few-fold) enhancement of the magneto-optical Kerr effect…

Materials Science · Physics 2013-06-04 M. Koba , J. Suffczyński

Ultrafast magnetization dynamics in metallic heterostructures consists of a combination of local demagnetization in the ferromagnetic constituent and spin-dependent transport contributions within and in between the constituents. Separation…

Sagnac interferometry can provide a significant improvement in signal-to-noise ratio compared to conventional magnetic imaging based on the magneto-optical Kerr effect (MOKE). We show that this improvement is sufficient to allow…

Mesoscale and Nanoscale Physics · Physics 2023-07-24 Saba Karimeddiny , Thow Min Jerald Cham , Orion Smedley , Daniel C. Ralph , Yunqiu Kelly Luo

Here we present a magnetic thin film with a weak ferrimagnetic (FIM) phase above the N\'eel temperature ($T_{N}$ = 240 K) and a non-collinear antiferromagnetic (AFM) phase below, exhibiting a small net magnetisation due to strain-associated…

Strongly Correlated Electrons · Physics 2023-08-21 F. Johnson , J. Zázvorka , L. Beran , D. Boldrin , L. F. Cohen , J. Zemen , M. Veis

In conventional Kerr- and Faraday microscopy the sample is illuminated with plane-polarised light and a magnetic domain contrast is generated by an analyser making use of the Kerr- or Faraday rotation. In this paper we demonstrate…

Materials Science · Physics 2021-07-14 R. Schäfer , Peter M. Oppeneer , Alexey Ognev , Alexander Samardak , Ivan V. Soldatov

Magneto-optic Kerr effect can probe the process of magnetization reversal in ferromagnetic thin films and thus be used as an alternative to magnetometry. Kerr effect is wavelength-dependent and the Kerr rotation can reverse sign, vanishing…

Materials Science · Physics 2022-11-04 Jörg Schöpf , Paul H. M. van Loosdrecht , Ionela Lindfors-Vrejoiu

We present a comprehensive experimental and numerical study of magnetization dynamics triggered in a thin metallic film by single-cycle terahertz pulses of $\sim20$ MV/m electric field amplitude and $\sim1$ ps duration. The experimental…

A large nonlinear magneto-optical effect is observed in a non-centrosymmetric Fe/AlGaAs (001) heterostructure. This effect is a direct consequence of interference between second-harmonic optical waves of magnetic and crystallographic…

Materials Science · Physics 2007-05-23 Haibin Zhao , Diyar Talbayev , Gunter Luepke , Aubrey Hanbicki , Connie Li , Berend Jonker

Antiferromagnets are a promising platform for next-generation spintronics due to their ultrafast spin dynamics and robustness to external fields. All-optical control of antiferromagnetic order is essential to fully exploit their potential…

Ultrafast spin dynamics in ferromagnetic half-metallic compound Sr_2FeMoO_6 is investigated by pump-probe measurements of magneto-optical Kerr effect. Half-metallic nature of this material gives rise to anomalous thermal insulation between…

Strongly Correlated Electrons · Physics 2009-10-31 T. Kise , T. Ogasawara , M. Ashida , Y. Tomioka , Y. Tokura , M. Kuwata-Gonokami

Measurements of spin-orbit torques in a ferromagnetic/nonmagnetic multilayer are typically based on an assumption that the entire ferromagnetic layer uniformly responds to the spin-orbit torque. This assumption breaks down when the…

Applied Physics · Physics 2022-07-22 Ryan W. Greening , Xin Fan

In this manuscript time-resolved magneto-optical Kerr effect experiments on structured CoFeB films are presented. The geometries considered are two dimensional square lattices of micrometer-sized antidots, fabricated by a focused ion beam.…

Materials Science · Physics 2012-01-05 Henning Ulrichs , Benjamin Lenk , Markus Münzenberg

The anomalous Hall effect and magneto-optical Kerr effect have traditionally been associated with ferromagnets, but recent studies reveal their presence in noncollinear antiferromagnets due to nonzero Berry curvature despite negligible net…

Strongly Correlated Electrons · Physics 2025-10-23 Camron Farhang , Weihang Lu , Yuchuan Yao , Pratap Pal , Shaofeng Han , Jian-Guo Zheng , Hua Chen , Chang-Beom Eom , Jing Xia

Antiferromagnets (AFMs) are presently considered as promising materials for applications in spintronics and random access memories due to the robustness of information stored in AFM state against perturbing magnetic fields (P. Wadley et…

Electrodynamic responses from three-dimensional (3D) topological insulators (TIs) are characterized by the universal magnetoelectric $E\cdot B$ term constituent of the Lagrangian formalism. The quantized magnetoelectric coupling, which is…

Mesoscale and Nanoscale Physics · Physics 2016-03-15 K. N. Okada , Y. Takahashi , M. Mogi , R. Yoshimi , A. Tsukazaki , K. S. Takahashi , N. Ogawa , M. Kawasaki , Y. Tokura

To date, magnetic proximity effect (MPE) has only been conclusively observed in ferromagnet (FM) based systems. We report the observation of anomalous Hall effect and anisotropic magnetoresistance in angular dependent magnetoresistance…

Materials Science · Physics 2022-08-10 Yang Cheng , Sisheng Yu , Adam S. Ahmed , Menglin Zhu , Jinwoo Hwang , Fengyuan Yang

Anomalous Hall effect (AHE), a protocol of various low-power dissipation quantum phenomena and a fundamental precursor of intriguing topological phases of matter, is usually observed in ferromagnetic materials with orthogonal configuration…

Mesoscale and Nanoscale Physics · Physics 2023-04-27 Jin Cao , Wei Jiang , Xiao-Ping Li , Daifeng Tu , Jiadong Zhou , Jianhui Zhou , Yugui Yao

Heterostructures comprising ferromagnet (FM) and heavy metals (HM) with perpendicular magnetic anisotropy (PMA) and interfacial Dzyaloshinskii-Moriya interaction (iDMI) can host chiral domain walls and topological spin textures, making them…

In their Comment, Kimling and Kuschel (hereafter the commenters) challenge our original interpretation of the magneto-optical Kerr effect (MOKE) measurements using ultrasensitive Sagnac interferometer, claiming that the transverse…

Materials Science · Physics 2019-03-27 R. McLaughlin , D. Sun , C. Zhang , M. Groesbeck , Z. Valy Vardeny

Antiferromagnets are emerging as promising alternatives to ferromagnets in spintronics applications. A key feature of antiferromagnets is their anisotropic magnetoresistance (AMR), which has the potential to serve as a sensitive marker for…