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Band asymmetry-driven nonreciprocal electronic transport in a helimagnetic semimetal α-EuP.
Proc Natl Acad Sci U S A
January 2025
Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
Chiral magnetic textures give rise to unconventional magnetotransport phenomena such as the topological Hall effect and nonreciprocal electronic transport. While the correspondence between topology or symmetry of chiral magnetic structures and such transport phenomena has been well established, a microscopic understanding based on the spin-dependent band structure in momentum space remains elusive. Here, we demonstrate how a chiral magnetic superstructure introduces an asymmetry in the electronic band structure and triggers a nonreciprocal electronic transport in a centrosymmetric helimagnet α-EuP.
View Article and Find Full Text PDFElectric and Magnetic Tuning of Gilbert Damping Constant in LSMO/PMN-PT(011) Heterostructure.
J Phys Condens Matter
April 2023
School of Physics, University of Hyderabad, University of Hyderabad, Prof C R Rao Road, Gachibowli, Hyderabad, Telangana, 500046, INDIA.
Electric field control of magnetodynamics in magnetoelectric (ME) heterostructures has been the subject of recent interest due to its fundamental complexity and promising applications in room temperature devices. The present work focuses on the tuning of magnetodynamic parameters of epitaxially grown ferromagnetic (FM) LaSrMnO(LSMO) on a ferro(piezo)electric (FE) Pb(MgNb)O-PbTiO(PMN-PT) single crystal substrate. The uniaxial magnetic anisotropy of LSMO on PMN-PT confirms the ME coupling at the FM/FE heterointerface.
View Article and Find Full Text PDFCarbon phosphide nanoribbons with spatial inversion symmetry: robust generators of pure spin current with a photogalvanic effect.
Phys Chem Chem Phys
July 2022
School of Electronic and Information Engineering, Changshu Institute of Technology, Changshu 215500, China.
Our recent work has demonstrated that the spin-dependent photogalvanic effect (PGE) is an ideal way to induce pure spin current in certain centrosymmetric systems (X. Tao, P. Jiang, H.
View Article and Find Full Text PDFCoordination-Induced Band Gap Reduction in a Metal-Organic Framework.
Chemistry
February 2022
Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355, Berlin, Germany.
Herein, we report on the synthesis of a microporous, three-dimensional phosphonate metal-organic framework (MOF) with the composition Cu (H -MTPPA) ⋅ 2 NMP (H -MTPPA=methane tetra-p-phenylphosphonic acid and NMP=N-methyl-2-pyrrolidone). This MOF, termed TUB1, has a unique one-dimensional inorganic building unit composed of square planar and distorted trigonal bipyramidal copper atoms. It possesses a (calculated) BET surface area of 766.
View Article and Find Full Text PDFResummation of Quantum Radiation Reaction in Plane Waves.
Phys Rev Lett
September 2021
Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany.
We propose a new approach to obtain the momentum expectation value of an electron in a high-intensity laser, including multiple photon emissions and loops. We find a recursive formula that allows us to obtain the O(α^{n}) term from O(α^{n-1}), which can also be expressed as an integro-differential equation. In the classical limit we obtain the solution to the Landau-Lifshitz equation to all orders.
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