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Understanding mechanisms of quantum ordering in strongly correlated systems remains a central challenge in condensed matter physics, with implications for designing novel quantum materials. Here, we investigate kinetic antiferromagnetism on…

强关联电子 · 物理学 2024-11-14 Johan Carlström

We present a scheme for generating a synthetic magnetic field and spin-orbit coupling via Raman coupling in highly magnetic lanthanide atoms such as dysprosium. Employing these atoms offer several advantages for realizing strongly…

量子气体 · 物理学 2013-07-25 Xiaoling Cui , Biao Lian , Tin-Lun Ho , Benjamin L. Lev , Hui Zhai

We investigate a spin-electricity conversion effect in a topological insulator/ferromagnet heterostructure. In the spin-momentum-locked surface state, an electric current generates nonequilibrium spin accumulation, which causes a spin-orbit…

介观与纳米尺度物理 · 物理学 2017-04-21 Nobuyuki Okuma , Kentaro Nomura

Magnons serve as a testing ground for fundamental aspects of Hermitian and non-Hermitian wave mechanics and are of high relevance for information technology. This study presents setups for realizing spatio-temporally driven parity-time (PT)…

介观与纳米尺度物理 · 物理学 2023-10-17 Xi-guang Wang , Lu-lu Zeng , Guang-hua Guo , Jamal Berakdar

Magnon confinement and trapping refer to the localization of magnons-quasiparticles that represent collective spin-wave excitations in magnetic materials-within specific regions or structures. This concept is essential in magnonics, a…

介观与纳米尺度物理 · 物理学 2026-02-10 J. Chen , H. Yu , R. Gallardo , P. Landeros , G. Gubbiotti

We develop a symmetry-controlled theory of anisotropic thermomagnonic torques in insulating altermagnets. We identify a spin-splitter magnonic torque linked to thermally generated, sublattice-odd spin currents and an anisotropic entropic…

介观与纳米尺度物理 · 物理学 2026-04-24 Edward Schwartz , Hamed Vakili , Alexey A. Kovalev

In the traditional view, the magnetic moment appearing in the superconducting region is induced by equal-spin triplet superconducting correlations in superconductor ($S$) ferromagnet ($F$) heterostructure with noncollinear magnetization. In…

超导电性 · 物理学 2019-01-15 Hao Meng , Jiansheng Wu , Xiuqiang Wu , Mengyuan Ren , Yajie Ren , Jinbin Yao

We propose a new method to generate magnetic skyrmions through spin-wave focusing in chiral ferromagnets.A lens is constructed to focus spin waves by a curved interface between two ferromagnetic thin films with different perpendicular…

介观与纳米尺度物理 · 物理学 2020-12-04 Zhenyu Wang , Z. -X. Li , Ruifang Wang , Bo Liu , Hao Meng , Yunshan Cao , Peng Yan

Manipulating spin currents in magnetic insulators is a key technology in spintronics. We theoretically study a simple inversion-asymmetric model of quantum antiferromagnets, where both the exchange interaction and the magnetic field are…

介观与纳米尺度物理 · 物理学 2019-12-13 Tatsuhiko N. Ikeda

Thermal and electrical injection and transport of magnon spins in magnetic insulators is conventionally understood by the non-equilibrium population of magnons. However, this view is challenged by several recent experiments in noncollinear…

介观与纳米尺度物理 · 物理学 2025-10-21 Xiyin Ye , Tao Yu

Magnons are promising candidates for next-generation computing architectures, offering the ability to manipulate their amplitude and phase for information encoding. However, the frequency degree of freedom remains largely unexploited due to…

介观与纳米尺度物理 · 物理学 2024-08-13 Meng Xu , Yan Chen , Weichao Yu

The controllable magnetic skyrmion motion represents a highly concerned issue in preparing advanced skyrmion-based spintronic devices. Specifically, magnon-driven skyrmion motion can be easily accessible in both metallic and insulating…

介观与纳米尺度物理 · 物理学 2021-08-18 Z. Jin , C. Y. Meng , T. T. Liu , D. Y. Chen , Z. Fan , M. Zeng , X. B. Lu , X. S. Gao , M. H. Qin , J. M. Liu

Magnetic reconnection is ubiquitous in astrophysical systems, and in many such systems, the plasma suffers from significant cooling due to synchrotron radiation. We study relativistic magnetic reconnection in the presence of strong…

高能天体物理现象 · 物理学 2023-03-01 Alexander Y. Chen , Dmitri Uzdensky , Jason Dexter

We investigate theoretically magnon-mediated superconductivity in a heterostructure consisting of a normal metal and a two-sublattice antiferromagnetic insulator. The attractive electron-electron pairing interaction is caused by an…

超导电性 · 物理学 2019-10-02 Eirik Erlandsen , Akashdeep Kamra , Arne Brataas , Asle Sudbø

Ferromagnetic (FM) manganites, a group of likely half-metallic oxides, are of special interest not only because they are a testing ground of the classical doubleexchange interaction mechanism for the colossal magnetoresistance, but also…

强关联电子 · 物理学 2007-08-22 Jiandi Zhang , F. Ye , Hao Sha , Pengcheng Dai , J. A. Fernandez-Baca , E. W. Plummer

Magnon torques, which can operate without involving moving electrons, could circumvent the Joule heating issue. In conventional magnon torque systems, the spin source layer with strong spin-orbit coupling is utilized to inject magnons, and…

材料科学 · 物理学 2026-01-12 Yuchen Pu , Guoyi Shi , Hua Bai , Xinhou Chen , Chenhui Zhang , Zhaohui Li , Mehrdad Elyasi , Hyunsoo Yang

We experimentally observe the generation of magnon harmonics and subharmonics in an on-chip surface acoustic wave resonator incorporating a thin Co$_{20}$Fe$_{60}$B$_{20}$ film, using micro-focused Brillouin light scattering. In our…

Strong coupling between two quanta of different excitations leads to the formation of a hybridized state which paves a way for exploiting new degrees of freedom to control phenomena with high efficiency and precision. A magnon polaron is…

Thermoelectric phenomena in magnetic materials present tantalizing possibilities for manipulating spin-information using heat in future 'spin caloritronic' devices. Key to unraveling their underlying physics is to understand spin-lattice…

We experimentally and theoretically demonstrate that nonlinear spin-wave dynamics can induce an effective resonant interaction between non-resonant magnon modes in a yttrium iron garnet disk. Under strong pumping near the ferromagnetic…