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We synthesize MoS$_{2}$ atomic layer flakes at different growth conditions to tailor S-terminated and Mo-terminated edge defect states that are investigated for their ferromagnetic response. We leverage quantum weak measurement principles…

The asymmetric magnetization reversal in exchange biased Fe/MnF$_{2}$ involves coherent (Stoner-Wohlfarth) magnetization rotation into an intermediate, stable state perpendicular to the applied field. We provide here experimentally tested…

Materials Science · Physics 2016-08-16 A. Tillmanns , S. Oertker , B. Beschoten , G. Güntherodt , C. Leighton , Ivan K. Schuller , J. Nogues

Quantum geometry provides an intrinsic framework for characterizing the geometric structure of quantum states. It highlights its relevance to various aspects of fundamental physics. However, its direct implications for magnetic phenomena…

Mesoscale and Nanoscale Physics · Physics 2026-02-04 Xuan Qian , Xiao-Bin Qiang , Wenkai Zhu , Yuqing Huang , Yiyuan Chen , Hai-Zhou Lu , Yang Ji , Kaiyou Wang

We have studied the magneto-optical spectra of ultrathin magnetic films deposited on Si substrates coated with an oxide layer (SiOx). We find that the Kerr rotation angle and the ellipticity of ~1 nm thick CoFeB thin films, almost…

Mesoscale and Nanoscale Physics · Physics 2018-01-18 Satoshi Sumi , Hiroyuki Awano , Masamitsu Hayashi

Magnetic/non-magnetic/heterostructured ultra-thin films' characterisation is highly demanding due to the emerging diverse applications of such films. Diverse measurements are usually performed on such systems to infer their electrical,…

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

Utilizing the first-principles density functional theory calculations together with group theory analyses, we systematically investigate the spin order-dependent magneto-optical effect (MOE), anomalous Hall effect (AHE), and anomalous…

Materials Science · Physics 2021-01-25 Xiuxian Yang , Xiaodong Zhou , Wanxiang Feng , Yugui Yao

First principles calculations of the magnetic properties and the magneto-optical Kerr effect (MOKE) of iron thin films epitaxially grown on the [001] surface of paramagnetic metals: copper, silver, gold, palladium, and platinum are…

Condensed Matter · Physics 2016-08-31 A. Debernardi , I. Galanakis , M. Alouani , H. Dreysse

Antiferromagnetic (AFM) materials offer a promising platform for exploring novel couplings between altermagnetic (AM) spin-splitting and magneto-optical Kerr effect (MOKE), with potential applications in next-generation quantum…

Nonlinear magneto-optics is a very sensitive fingerprint of the electronic, magnetic, and atomic structure of surfaces, interfaces, and thin ferromagnetic films. Analyzing theoretically the nonlinear magneto-optical Kerr effect for thin…

Condensed Matter · Physics 2009-10-28 U. Pustogowa , T. A. Luce , W. Hubner , K. H. Bennemann

Electric field control of magnetism is the key to many next generation spintronics applications1. Ferroelectric control of spin polarization2,3 followed by the electrically driven repeatable magnetization reversal in the absence of applied…

Materials Science · Physics 2016-01-14 Gaurav Vats , Ashok Kumar , Ram S. Katiyar , Nora Ortega

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

Spin current generated by spin Hall effect in the heavy metal would diffuse up and down to adjacent ferromagnetic layers and exert torque on their magnetization, called spin-orbit torque. Antiferromagnetically coupled trilayers, namely the…

Materials Science · Physics 2017-04-05 G. Y. Shi , C. H. Wan , Y. S. Chang , F. Li , X. J. Zhou , P. X. Zhang , J. W. Cai , X. F. Han , F. Pan , C. Song

Enhancement and tailoring of the transverse magneto-optical Kerr effect (TMOKE) in hybrid metasurfaces comprising rectangular silicon nanowires coupled with a nickel substrate are demonstrated. The excitation of Mie modes of different…

A microscopic model of non-reciprocal optical effects in antiferromagnets is developed by considering the case of Cr_2O_3 where such effects have been observed. These effects are due to a direct coupling between light and the…

Condensed Matter · Physics 2009-10-28 V. N. Muthukumar , Roser Valenti , Claudius Gros

We carried out magneto-optical Kerr effect (MOKE) and magnetization measurements on a single crystal of Ni2.00Mn1.16Ga0.84 in a longitudinal geometry. While there had been reports of polar geometry measurements so far, we show that -…

Materials Science · Physics 2017-07-11 Fikáček Jan , Kopecký Vít , Kaštil Jiří , Heczko Oleg , Honolka Jan

It is demonstrated both theoretically and experimentally that the spin chirality associated with a noncoplanar spin configuration produces a magneto-optical effect. Numerical study of the two-band Hubbard model on a triangle cluster shows…

Strongly Correlated Electrons · Physics 2016-08-16 I. Kézsmárki , S. Onoda , Y. Taguchi , T. Ogasawara , M. Matsubara , S. Iguchi , N. Hanasaki , N. Nagaosa , Y. Tokura

In the non-collinear antiferromagnet Mn$_3$Sn, we compare simultaneous measurements of the anomalous Hall effect (AHE) and the magneto-optical Kerr effect (MOKE) through two magnetic phase transitions: the high-temperature…

Mesoscale and Nanoscale Physics · Physics 2019-01-24 A. L. Balk , N. H. Sung , S. M. Thomas , P. F. S. Rosa , R. D. McDonald , J. D. Thompson , E. D. Bauer , F. Ronning , S. A. Crooker

Recent advances in nanophotonics have demonstrated that various optical resonances in nanostructures can achieve strong field confinement with substantially suppressed scattering. This study investigates the optical Kerr effect (OKE)…

Optics · Physics 2025-10-10 Andrey V. Panov

The Heusler compound Co$_2$MnSi provides a crystallographic transition from B2 to L2$_1$ structure with increasing annealing temperature $T_a$, being a model system for investigating the influence of crystallographic ordering on structural,…

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