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相关论文: Dzyaloshinskii-Moriya interaction in NaV$_2$O$_5$:…

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The electrical control of magnons opens up new ways to transport and process information for logic devices. In magnetoelectrical multiferroics, the Dzyaloshinskii-Moriya (DM) interaction directly allow for such a control and, hence, is of…

材料科学 · 物理学 2023-07-19 Sebastian Meyer , Bin Xu , Matthieu Verstraete , Laurent Bellaiche , Bertrand Dupé

In this work, we discuss the nature of Dzyaloshinskii-Moriya interaction (DMI) in transition metal heterostructures. We first derive the expression of DMI in the small spatial gradient limit using Keldysh formalism. This derivation provides…

介观与纳米尺度物理 · 物理学 2021-01-04 Ahmed Hajr , Abdulkarim Hariri , Guilhem Manchon , Sumit Ghosh , Aurelien Manchon

By combining first-principles electronic-structure calculations with the model Hamiltonian approach, we systematically study the magnetic properties of sodium superoxide (NaO2), originating from interacting superoxide molecules. We show…

材料科学 · 物理学 2013-12-19 I. V. Solovyev , Z. V. Pchelkina , V. V. Mazurenko

Ultrathin metallic ferromagnets on substrates with strong spin-orbit coupling can exhibit induced chiral interactions of the Dzyaloshinskii-Moriya (DM) form. For systems with perpendicular anisotropy, the presence of DM interactions has…

The properties of Kitaev materials are attracting ever increasing attention owing to their exotic properties. In realistic two-dimensional materials, Kitaev interaction is often accompanied by the Dzyloshinskii-Moriya interaction, which…

We calculate exactly the density of magnon states of the regularly alternating spin-1/2 XX chain with Dzyaloshinskii-Moriya interaction. The obtained results permit us to examine the stability of the chain with respect to spin-Peierls…

凝聚态物理 · 物理学 2007-05-23 O. Derzhko , J. Richter , O. Zaburannyi

The exact results for thermodynamical properties of one-dimensional spin-1/2 isotropic XY model with Dzyaloshinskii-Moriya interaction in random lorentzian transverse field are obtained. This permits to discuss some approximate methods of…

统计力学 · 物理学 2008-02-03 O. V. Derzhko , T. M. Verkholyak

We investigate how to facilitate the injection of domain walls in chiral ferromagnetic nanowires by electrical means. We calculate the critical current density above which domain walls are injected into the nanowire depending on the…

介观与纳米尺度物理 · 物理学 2020-07-01 Davi R. Rodrigues , Nils Sommer , Karin Everschor-Sitte

In a recent Letter [1], Wernsdorfer et al. report an experimental study of a Mn12 molecular wheel which shows essentially identical behavior to the Mn12 wheel studied by Ramsey et al. [2]. In their Letter, Wernsdorfer et al. use the same…

介观与纳米尺度物理 · 物理学 2015-05-13 E. del Barco , S. Hill , D. N. Hendrickson

We report the magnetoelastic properties of a Ba$_2$CuGe$_2$O$_7$ single crystal at low temperatures under a magnetic field applied along the crystallographic [001] axis. Our results extend to low temperature the $H-T$ phase diagram…

强关联电子 · 物理学 2025-01-10 J. Sourd , T. Kotte , P. Wild , S. Mühlbauer , J. Wosnitza , S. Zherlitsyn

Magnetization, specific heat, and neutron scattering measurements were performed to study a magnetic transition in jarosite, a spin-5/2 kagome lattice antiferromagnet. When a magnetic field is applied perpendicular to the kagome plane,…

In the quest for materials hosting Kitaev spin liquids, much of the efforts have been focused on the fourth- and fifth-row transition metal compounds, which are spin-orbit coupling assisted Mott insulators. Here, we study the structural and…

强关联电子 · 物理学 2022-12-20 Shishir Kumar Pandey , Ji Feng

Currently double-interface MTJs have been developed for enhancing the thermal stability barrier in small technology node. Dzyaloshinskii-Moriya interaction (DMI) inevitably exists in such devices due to the use of the…

应用物理 · 物理学 2019-10-02 Simin Li , Zhaohao Wang , Yijie Wang , Mengxing Wang , Weisheng Zhao

Motivated by the recent experiment on the size and helicity control of skyrmions in Mn$_{1-x}$Fe$_x$Ge [K. Shibata et al., Nature Nanotechnology 8, 732 (2013)], we study how the Dzyaloshinskii-Moriya (DM) interaction changes its size and…

材料科学 · 物理学 2015-03-13 Takashi Koretsune , Naoto Nagaosa , Ryotaro Arita

Neutron inelastic scattering has been used to probe the spin dynamics of the quantum (S=1/2) ferromagnet on the pyrochlore lattice Lu2V2O7. Well-defined spin waves are observed at all energies and wavevectors, allowing us to determine the…

强关联电子 · 物理学 2015-06-19 M. Mena , R. S. Perry , T. G. Perring , M. D. Le , S. Guerrero , M. Storni , D. T. Adroja , Ch. Ruegg , D. F. McMorrow

We consider a class of one-dimensional compass models with staggered Dzyaloshinskii-Moriya exchange interactions in an external transverse magnetic field. Based on the exact solution derived from Jordan-Wigner approach, we study the…

强关联电子 · 物理学 2017-06-01 Qing-Qiu Wu , Wei-Hai Ni , Wen-Long You

The impurities of exchange couplings, external magnetic fields and Dzyaloshinskii--Moriya (DM) interaction considered as Gaussian distribution, the entanglement in one-dimensional random $XY$ spin systems is investigated by the method of…

量子物理 · 物理学 2009-11-13 C. J. Shan , W. W. Cheng , T. K. Liu , Y. X. Huang , H. Li

It has been theoretically demonstrated that two spins (qubits or qutrits), coupled by exchange interaction only, undergo a coupling-based joint Landau-Majorana-St\"uckelberg-Zener (LMSZ) transition when a linear ramp acts upon one of the…

量子物理 · 物理学 2020-07-29 Roberto Grimaudo , Hiromichi Nakazato , Antonino Messina , Nikolay V. Vitanov

In order to increase the thermal stability of a magnetic random access memory (MRAM) cell, materials with high spin-orbit interaction are often introduced in the storage layer. As a side effect, a strong Dzyaloshinskii-Moriya interaction…

介观与纳米尺度物理 · 物理学 2016-04-20 J. Sampaio , A. V. Khvalkovskiy , M. Kuteifan , M. Cubukcu , D. Apalkov , V. Lomakin , V. Cros , N. Reyren

Jordan-Wigner transformation and Bogolyubov transformation are the main steps of the diagonalization of Hamiltonian and paly an important role in the statistical mechanics calculations for one-dimensional Heisenberg spin chain model. Many…

量子物理 · 物理学 2009-05-13 Chuan-Jia Shan , Wei-Wen Cheng , Ji-Bing Liu , Tang-Kun Liu , Yan-Xia Huang , Hong Li