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Related papers: Quantized Toroidal Waves on Ferrotoroidal Magnets

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We study a one-dimensional (1D) interacting electronic liquid coupled to a 1D array of classical magnetic moments and to a superconductor. We show that at low energy and temperature the magnetic moments and the electrons become strongly…

Mesoscale and Nanoscale Physics · Physics 2013-10-08 Bernd Braunecker , Pascal Simon

Quasiparticles in liquid crystals, such as torons and skyrmions, represent a new class of topologically protected solitonic excitations, offering a promising route toward soft microrobotics. Here we demonstrate that torons can be propelled…

Soft Condensed Matter · Physics 2025-12-16 Joel Torres , Rodrigo C. V. Coelho , Patrick Oswald , Francesc Sagés , Jordi Ignés-Mullol

The role of dipolar interactions and anisotropy are important to obtain, otherwise forbidden, ferromagnetic ordering at finite temperature for ions arranged in two-dimensional (2D) arrays (monolayers). Here we demonstrate that conventional…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. K. Mukhopadhyay , M. K. Sanyal , T. Sakakibara , V. Leiner , R. M. Dalgliesh , S. Langridge

We investigate the magnetic order and related strongly-correlated effects in an one-dimensional Ising-Kondo lattice with transverse field. This model is the anisotropic limit of the conventional isotropic Kondo lattice model, in the sense…

Strongly Correlated Electrons · Physics 2024-01-02 Xiaofan Zhou , Jingtao Fan , Suotang Jia

A magnetic toroidal moment is a fundamental electronic degree of freedom in the absence of both spatial inversion and time-reversal symmetries and gives rise to novel multiferroic and transport properties. We elucidate essential model…

Strongly Correlated Electrons · Physics 2022-05-02 Megumi Yatsushiro , Rikuto Oiwa , Hiroaki Kusunose , Satoru Hayami

Time-dependent rotational electric polarizations have been proposed to generate temporally varying magnetic moments, for example, through a combination of ferroelectric polarization and optical phonons. This phenomenon has been called…

The traditional theory of magnetic moments for chiral phonons is based on the picture of the circular motion of the Born effective charge, typically yielding a small fractional value of the nuclear magneton. Here we investigate the…

Mesoscale and Nanoscale Physics · Physics 2021-11-10 Yafei Ren , Cong Xiao , Daniyar Saparov , Qian Niu

The three primary ferroics, namely ferromagnets, ferroelectrics and ferroelastics exhibit corresponding large (or even giant) magnetocaloric,electrocaloric and elastocaloric effects when a phase transition is induced by the application of…

Materials Science · Physics 2012-05-08 Teresa Castan , Antoni Planes , Avadh Saxena

Chiral coupling at the single-quantum level promises to be a remarkable potential for quantum information processing. Here we propose to achieve a chiral interaction between a magnon mode in a ferromagnetic sphere and a superconducting…

Mesoscale and Nanoscale Physics · Physics 2022-12-02 Ya-long Ren , Sheng-li Ma , Fu-li Li

Weyl-Kondo semimetals are strongly correlated topological semimetals that develop through the cooperation of the Kondo effect with space group symmetries. The Kondo effect, capturing quantum fluctuations associated with strong correlations,…

Strongly Correlated Electrons · Physics 2024-10-25 Yuan Fang , Lei Chen , Andrey Prokofiev , Iñigo Robredo , Jennifer Cano , Maia G. Vergniory , Silke Paschen , Qimiao Si

We have succeeded in obtaining magnetized equilibrium states with differential rotation and differential toroidal magnetic fields. If an internal toroidal field of a proto-neutron star is wound up from the initial poloidal magnetic field by…

High Energy Astrophysical Phenomena · Physics 2015-08-28 Kotaro Fujisawa

We demonstrate the structural imaging of magnetostatic spin-wave modes hosted in a millimeter-sized ferromagnetic sphere. Unlike for low-dimensional magnetic materials, there is no prior technique to image these modes in bulk magnetized…

Materials Science · Physics 2019-08-07 Arnaud Gloppe , Ryusuke Hisatomi , Yosuke Nakata , Yasunobu Nakamura , Koji Usami

We report on the properties of a dipolar, antiferromagnetic chain in the framework of linear spin-wave theory. The phase diagram is calculated for an arbitrary ratio of dipolar interaction to exchange interaction and for fields both…

Statistical Mechanics · Physics 2008-02-03 M. Hummel , C. Pich , F. Schwabl

Vector spin chirality is one of the fundamental characteristics of complex magnets. For a one-dimensional spin-spiral state it can be interpreted as the handedness, or rotational sense of the spiral. Here, using spin-polarized scanning…

Topological insulators have been proposed to be best characterized as bulk magnetoelectric materials that show response functions quantized in terms of fundamental physical constants. Here we lower the chemical potential of…

Mesoscale and Nanoscale Physics · Physics 2016-12-07 Liang Wu , M. Salehi , N. Koirala , J. Moon , S. Oh , N. P. Armitage

Topological quantum matter and spintronics research have been developed to a large extent independently. In this Review we discuss a new role that the antiferromagnetic order has taken in combining topological matter and spintronics. This…

Mesoscale and Nanoscale Physics · Physics 2017-04-06 L. Šmejkal , T. Jungwirth , J. Sinova

We elucidate the pivotal role of the bandstructure's orbital content in deciding the type of commensurate magnetic order stabilized within the itinerant scenario of iron-pnictides. Recent experimental findings in the tetragonal magnetic…

Superconductivity · Physics 2017-08-01 Morten H. Christensen , Daniel D. Scherer , Panagiotis Kotetes , Brian M. Andersen

Lattice vibration modes are collective excitations in periodic arrays of atoms or molecules. These modes determine novel transport properties in solid crystals. Analogously, in periodical arrangements of magnetic vortex-state disks,…

We develop a theory of a dynamical Dzyaloshinskii-Moriya interaction (dDMI) in centrosymmetric crystals by generally considering the vibration of both cations and anions. It gives rise to an antisymmetric spin-lattice coupling, inducing…

Mesoscale and Nanoscale Physics · Physics 2025-12-25 Bowen Ma , Z. D. Wang

Twisted magnetic van der Waals materials provide a flexible platform to engineer new forms of unconventional magnetism. Here we demonstrate the emergence of electrically tunable topological moir\'e magnetism in twisted bilayers of the…

Strongly Correlated Electrons · Physics 2025-11-18 Tiago V. C. Antão , Jose L. Lado , Adolfo O. Fumega