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相关论文: Parameter Estimation with Dzyaloshinskii-Moriya In…

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The quantum coherence of the two-site XYZ model with Dzyaloshinsky-Moriya (DM) interactions in an external inhomogenous magnetic field is studied. The DM interaction, the magnetic field and the measurement basis can be along different…

In this paper, we study the thermal entanglement in a two-qubit Heisenberg XYZ system with different Dzyaloshinskii-Moriya (DM) couplings. We show that different DM coupling parameters have different influences on the entanglement and the…

量子物理 · 物理学 2009-11-13 Da-Chuang Li , Zhuo-Liang Cao

We study the effects of external magnetic field on the properties of an ordered Heisenberg antiferromagnet with the Dzyaloshinskii-Moriya (DM) interaction. Using the spin-wave theory quantum correction to the energy, on-site magnetization,…

强关联电子 · 物理学 2007-05-23 A. L. Chernyshev

Dzyaloshinskii-Moriya interaction, DMI in short, represents an antisymmetric type of magnetic interactions that favour orthogonal orientation of spins and competes with Heisenberg exchange. Being introduced to explain weak ferromagnetism in…

强关联电子 · 物理学 2021-06-02 V. V. Mazurenko , Y. O. Kvashnin , A. I. Lichtenstein , M. I. Katsnelson

Thermal entanglement and teleportation properties in non-inertial frames are investigated when a two-qubit Heisenberg XXX model with Dzyaloshinski-Moriya (DM) interaction is used as the quantum channel. We find that thermal entanglement and…

量子物理 · 物理学 2021-12-21 Chuan Mo , Guo-Feng Zhang

We review recent developments of formulations to calculate the Dzyaloshinskii--Moriya (DM) interaction from first principles. In particular, we focus on three approaches. The first one evaluates the energy change due to the spin twisting by…

介观与纳米尺度物理 · 物理学 2018-01-30 Takashi Koretsune , Toru Kikuchi , Ryotaro Arita

Dzyaloshinskii-Moriya (DM) interaction has been proven to excite entanglement of spin systems, enhancing the capability of realizing various quantum tasks such as teleportation. In this work, we consider the DM interaction -to the best of…

量子物理 · 物理学 2016-09-14 Fatih Ozaydin

The nearest neighbor spins in the one-dimensional (1D) spin-1/2 XX model with added Dzyaloshinskii-Moriya (DM) interaction are entangled at zero temperature. In the presence of a transverse magnetic field (TF) they remain entangled up to a…

强关联电子 · 物理学 2015-06-19 E. Mehran , S. Mahdavifar , R. Jafari

The thermal entanglement is investigated in a two-qubit Heisenberg XXZ system with Dzyaloshinskii-Moriya (DM) interaction. It is shown that the entanglement can be efficiently controlled by the DM interaction parameter and coupling…

量子物理 · 物理学 2009-11-13 Da-Chuang Li , Xian-Ping Wang , Zhuo-Liang Cao

We have investigated the physical effects of the Dzyaloshinskii-Moriya (DM) interaction in copper benzoate. In the low field limit, the spin gap is found to vary as $H^{2/3}\ln ^{1/6}(J/\mu_BH_s)$ ($H_s$: an effective staggered field…

强关联电子 · 物理学 2009-11-07 J. Z. Zhao , X. Q. Wang , T. Xiang , Z. B. Su , L. Yu

In antiferromagnetic (AFM) thin films, broken inversion symmetry or coupling to adjacent heavy metals can induce Dzyaloshinskii-Moriya (DM) interactions. Knowledge of the DM parameters is essential for understanding and designing exotic…

介观与纳米尺度物理 · 物理学 2018-05-14 Alireza Qaiumzadeh , Ivan A. Ado , Rembert A. Duine , Mikhail Titov , Arne Brataas

It is shown that a term in the form of Dzyaloshinskii-Moriya interaction (DMI) contributes to the free energy of a ferromagnetic (FM) film on a paramagnetic (PM) (an FM above the critical temperature, Tc) or superconducting (SC) substrate…

介观与纳米尺度物理 · 物理学 2023-05-24 M. A. Kuznetsov , K. R. Mukhamatchin , A. A. Fraerman

In our previous Letter [Phys. Rev. B 103, L140408 (2021)], we presented a discussion of the fundamental physical properties of the interactions parameterizing atomistic spin models in connection to first-principles approaches that enable…

The determination of material parameters is significantly important in material science, which is often a challenging task. Recently, advancements have shown that magnetic parameters, such as the Dzyaloshinskii-Moriya interaction (DMI), can…

材料科学 · 物理学 2024-08-23 Akito Watanabe , Yoshinobu Nakatani , Hiroyuki Awano , Kenji Tanabe

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

We consider a class of one-dimensional compass models with antisymmetric Dzyaloshinskii-Moriya exchange interaction in an external magnetic field. Based on the exact solution derived by means of Jordan-Wigner transformation, we study the…

强关联电子 · 物理学 2014-09-23 Wen-Long You , Guang-Hua Liu , Peter Horsch , Andrzej M. Oleś

Thermal entanglement of a two-qubit Ising chain subjected to an external magnetic field and Dzialoshinski-Moriya (DM) interaction is examined. The effect of magnetic field, strength of DM interaction and temperature are analyzed by adopting…

量子物理 · 物理学 2014-05-13 B. G Divyamani , Sudha

We employ entanglement negativity, local quantum uncertainty (LQU), and local quantum Fisher information (LQFI) to characterize thermal entanglement between two XYZ-Heisenberg-qubit states under the influence of Dzyaloshinsky Moriya (DM)…

量子物理 · 物理学 2024-10-10 S. Gaidi , A. Slaoui , A-B. A. Mohamed , M. EL Falaki , R. Ahl Laamara

We investigate the interplay of Dzyaloshinskii-Moriya interactions and an external field in spin 1/2 dimers. For isolated dimers and at low field, we derive simple expressions for the staggered and uniform magnetizations which show that the…

强关联电子 · 物理学 2009-11-11 S. Miyahara , J. -B. Fouet , S. R. Manmana , R. M. Noack , H. Mayaffre , I. Sheikin , C. Berthier , F. Mila

The effects of mixedness and entanglement on the lower bound and tightness of the entropic uncertainty in the Heisenberg model with Dzyaloshinski-Moriya (DM) interaction have been investigated. It is found that the mixedness can reflect the…

量子物理 · 物理学 2017-02-22 Xiao Zheng , Guo-Feng Zhang
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