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Two-dimensional (2D) van der Waals (vdW) magnets represent one of the most promising horizons for energy-efficient spintronic applications because their broad range of electronic, magnetic and topological properties. Of particular interest…

Tunable nonlinearity facilitates the creation of reconfigurable nonlinear metasurfaces, enabling innovative applications in signal processing, light switching, and sensing. This paper presents a novel approach to electrically modulate SHG…

Curved magnetic architectures are key enablers of the prospective magnetic devices with respect to size, functionality and speed. By exploring geometry-governed magnetic interactions, curvilinear magnetism offers a number of intriguing…

Strongly Correlated Electrons · Physics 2023-04-05 Kostiantyn V. Yershov , Denis D. Sheka

We use lithographically induced strain relaxation to periodically modulate the magnetic anisotropy in a single (Ga,Mn)As layer. This results in a lateral magnetoresistance device where two non-volatile magnetic states exist at zero external…

Mesoscale and Nanoscale Physics · Physics 2009-01-22 R. G. Dengel , C. Gould , J. Wenisch , K. Brunner , G. Schmidt , L. W. Molenkamp

In spite of the fact that there are different techniques in the creation of the high-quality liquid crystals (LCs) alignment by means of various surfaces, the azimuthal and polar anchoring energies as well as the pre-tilt angle are…

Self-assembling novel ordered structures with nanoparticles has recently received much attention. Here we use computer simulations to study a two-dimensional model system characterized by a simple isotropic interaction that could be…

Soft Condensed Matter · Physics 2015-03-18 Michael Engel

Photonic metasurfaces are ultrathin electromagnetic wave-molding metamaterials providing the missing link for the integration of nanophotonic chips with nanoelectronic circuits. An extra twist in this field originates from spin-optical…

We investigate theoretically the spin torque and magnetization dynamic in a thin ferromagnetic (FM) layer with spatially varying magnetization. The FM layer is deposited on the surface of a topological insulator (TI). In the limit of the…

Mesoscale and Nanoscale Physics · Physics 2013-03-29 Ji Chen , Mansoor Bin Abdul Jalil , Seng Ghee Tan

The control of magnetic fields underpins a wide variety of cutting-edge technologies, ranging from the guiding of micro-robots for medical applications to the trapping of atoms for quantum experiments. Relying on different arrangements of…

Classical Physics · Physics 2020-10-28 Rosa Mach-Batlle , Mark G. Bason , Nuria Del-Valle , Jordi Prat-Camps

Topological magnetism, characterized by topologically protected spin textures, offers rich physics and transformative prospects for spintronics. However, its stabilization typically demands external magnetic fields, preventing…

Materials Science · Physics 2026-03-06 Zhonglin He , Kaiying Dou , Wenhui Du , Ying Dai , Evgeny Y. Tsymbal , Yandong Ma

The large saturation magnetization in conventional dense moment ferromagnets offers flexible means of manipulating the ordered state through demagnetizing shape anisotropy fields but these dipolar fields, in turn, limit the integrability of…

The anisotropic dispersion and inherent nonlinearity of magnetostatic spin waves in thin films and confined structures provide unique opportunities for implementation in next-generation magnonic devices for data and signal processing. A…

Materials Science · Physics 2026-05-19 Stephanie R. Lake , Marc Eger , Philipp Geyer , Rouven Dreyer , Seth W. Kurfman , Georg Schmidt

Moir\'e superlattices in twisted bilayers enable profound reconstructions of the electronic bandstructure, giving rise to correlated states with remarkable tunability. Extending this paradigm to van der Waals magnets, twisting creates…

Geometrical designs of interacting nanomagnets have been studied extensively in the form of two dimensional arrays called artificial spin ice. These systems are usually designed to create geometrical frustration and are of interest for the…

Mesoscale and Nanoscale Physics · Physics 2024-06-19 Rehana Begum Popy , Julia Frank , Robert L. Stamps

The past few years have seen great strides in our ability to build synthetic microscopic machines. However, the function of such machines is often controlled directly by externally applied fields that deterministically specify the…

Soft Condensed Matter · Physics 2026-05-06 Melody Xuan Lim , Zexi Liang , Gabriel Alkuino , Jason Z. Kim , Itay Griniasty , Teng Zhang , Paul L. McEuen , Itai Cohen

Inspired by emergent behaviors of living matter, there is increasing interest in developing approaches to create dynamic patterns and structures in synthetic materials with controllable complexity to enable functionalities that are not…

Soft Condensed Matter · Physics 2024-02-01 Fereshteh Sohrabi , Carlo Rigoni , Tomy Cherian , Olli Ikkala , Jaakko V. I. Timonen

The authors show that the magnetization of a magnetostrictive/piezoelectric multiferroic single-domain shape-anisotropic nanomagnet can be switched with very small voltages that generate strain in the magnetostrictive layer. This can be the…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 Kuntal Roy , Supriyo Bandyopadhyay , Jayasimha Atulasimha

Controlling the magnetic order of antiferromagnets is challenging due to their vanishing net magnetization. For this reason, the study of local spin textures in antiferromagnets is restricted by the difficulty in nucleating such states.…

Mesoscale and Nanoscale Physics · Physics 2023-11-27 Miina Leiviskä , Sarah Jenkins , Richard F. L. Evans , Daria Gusakova , Vincent Baltz

Magnetic nanoparticles play a crucial role in different fields such as biomedicine or information and quantum technologies. These applications require nanoparticles with a single, well-defined energy minimum, free of metastable states, and…

Mesoscale and Nanoscale Physics · Physics 2024-10-28 D. García-Pons , J. Pérez-Bailón , A. Méndiz , V. Júlvez , M. Hack , K. Wurster , R. Kleiner , D. Koelle , M. J. Martínez-Pérez

We present a promising route to realize spontaneous magnetic order on the surface of a 3D topological insulator by applying a superlattice potential. The superlattice potential creates tunable van Hove singularities, which, when combined…

Strongly Correlated Electrons · Physics 2022-12-29 Daniele Guerci , Jie Wang , J. H. Pixley , Jennifer Cano