Results 51 to 60 of about 11,487,667 (208)

Spin Transport Across Interfaces With the Non‐Collinear Antiferromagnet Mn3Sn

Advanced Materials, EarlyView.
We study spin transport with Mn3Sn|Metal${\rm Mn}_3{\rm Sn}\vert{\rm Metal}$ heterostructures. For Mn3Sn|Pt${\rm Mn}_3{\rm Sn}\vert{\rm Pt}$ heterostructures, ultrafast spin current generation by optical pumping of Mn3Sn${\rm Mn}_3{\rm Sn}$ is explored, while for Mn3Sn|NiFe${\rm Mn}_3{\rm Sn}\vert{\rm NiFe}$ heterostructures, we probe the spin–charge ...
Paul A. Marschall, Wolfgang Hoppe, Prajwal Rigvedi, Börge Göbel, Franziska Ziolkowski, Samir Lounis, Banabir Pal, Stuart S. P. Parkin, Georg Woltersdorf   +8 more
wiley   +1 more source

Fundamentals of Magneto-Optical Spectroscopy

Frontiers in Physics, 2022
This paper provides a comprehensive review of magneto-optical (MO) spectroscopy. In the first place, different methods of MO measurements such as the Faraday effect, MO Kerr effect, and Cotton-Mouton effect are briefly introduced.
Katsuaki Sato, Takayuki Ishibashi
doaj   +1 more source

Unconventional specular optical rotation in the charge ordered state of Kagome metal CsV3Sb5

Nature Communications, 2023
Kagome metals AV3Sb5 (A = K, Cs, Rb) provide a rich platform for intertwined orders, where evidence for time-reversal symmetry breaking, likely due to the long-sought loop currents, has emerged in STM and muon spin relaxation experiments.
Camron Farhang, Jingyuan Wang, Brenden R. Ortiz, Stephen D. Wilson, Jing Xia   +4 more
doaj   +1 more source

Giant Anisotropic Spin Absorption in Chiral Hybrid Semiconductors

Advanced Materials, EarlyView.
Researchers uncover that chiral hybrid organic–inorganic semiconductors absorb spin differently depending on its polarization direction. This anisotropic spin absorption is primarily driven by the local symmetry breaking within the layered structure.
Cong Yang, Rui Sun, Mingwei Ge, Shehzad Khan, Subhrangsu Mukherjee, Matthew P. Hautzinger, Tianyou Lu, Harald Ade, Pius M. Theiler, Matthew C. Beard, Dali Sun, Mengxia Liu, Jun Liu   +12 more
wiley   +1 more source

Structure-dependent polar kerr rotation in CoPt/AlN layered films

Applied Surface Science Advances
Polar magneto-optical Kerr effect (P-MOKE) has found extensive applications in magnetic storage, magneto-optical sensors, and spintronic devices. In this study, we investigate the P-MOKE response of multilayer films composed of cobalt platinum (CoPt ...
Kejia Zhang, Zhenghe Wang, Kai Chen, Jundong Song, Takumi Sannomiya, Zhengjun Zhang, Takashi Harumoto, Ji Shi   +7 more
doaj   +1 more source

Exploring the structural, electronic, magnetic, and magneto-optical properties of double perovskites Ca_2TMIrO_6 (TM = Fe, Co) through first principles study

Condensed Matter Physics, 2023
This study is aimed at exploring the electronic, magnetic, and magneto-optical properties of double perovskites Ca_2FeIrO_6 and Ca_2CoIrO_6 with monoclinic structure (space group P21/c) in order to examine their potential applications in spintronic and ...
I. Touaibia, A. Bouguerra, W. Guenez, F. Chemam   +3 more
doaj   +1 more source

Helicity‐Dependent All‐Optical Switching in Bi,Ga‐Substituted Rare‐Earth Iron Garnet Films Driven by Orbital Magnetic Moment

Advanced Optical Materials, EarlyView.
Helicity‐dependent all‐optical magnetization switching was demonstrated for the Bi‐ and Ga‐substituted rare‐earth (R) iron garnet crystal thin films (Bi,Ga:RIG; R = Eu3+, Nd3+, and Y3+). The efficiency followed the order EIG > NIG > YIG. These results show the correlation between 4f orbital moment (4f〈L〉) of R3+ and helicity‐dependent optical ...
Ayumu Hata, Ryuichiro Asatani, Saiki Suzuki, Md Abdullah Al Masud, Hotaka Sakaguchi, Jun Okabayashi, Shinji Isogami, Takayuki Ishibashi   +7 more
wiley   +1 more source

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

Topological magneto-optical effect from skyrmion lattice

Nature Communications, 2023
The magnetic skyrmion is a spin-swirling topological object characterized by its nontrivial winding number, holding potential for next-generation spintronic devices. While optical readout has become increasingly important towards the high integration and
Yoshihiro D. Kato, Yoshihiro Okamura, Max Hirschberger, Yoshinori Tokura, Youtarou Takahashi   +4 more
doaj   +1 more source

Enhanced magneto-optical Kerr effect at Fe/insulator interfaces [PDF]

Physical Review B, 2017
Using density functional theory calculations, we have found an enhanced magneto-optical Kerr effect in Fe/insulator interfaces. The results of our study indicate that interfacial Fe atoms in the Fe films have a low-dimensional nature, which causes the following two effects: (i) The diagonal component $σ_{xx}$ of the optical conductivity decreases ...
Gu, Bo, Takahashi, Saburo, Maekawa, Sadamichi   +2 more
openaire   +2 more sources