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We study the quantum entanglement and quantum phase transition (QPT) of the anisotropic spin-1/2 XY model with staggered Dzyaloshinskii-Moriya (DM) interaction by means of quantum renormalization group method. The scaling of coupling…

统计力学 · 物理学 2015-05-28 Fu-Wu Ma , Xiang-Mu Kong

Curvilinear geometries in magnetic nanostructures provide a unique platform for exploring the interplay of symmetry, topology, and curvature in magnetization dynamics. In this work, we analytically study the static and dynamic properties of…

介观与纳米尺度物理 · 物理学 2025-05-20 Kostiantyn V. Yershov , Svitlana Kondovych , Denis D. Sheka

Solitons are very promising for the design of next generation of ultralow power devices for storage and computation. The key ingredient to achieve this goal is the fundamental understanding of their stabilization and manipulation. Here, we…

介观与纳米尺度物理 · 物理学 2016-08-24 G. Siracusano , R. Tomasello A. Giordano , V. Puliafito , B. Azzerboni , O. Ozatay , M. Carpentieri , G. Finocchio

An new and accurate scheme to calculate the interatomic Dzyaloshinskii-Moriya interaction (DMI) parameters is presented, which is based on the fully relativistic Korringa-Kohn-Rostoker Green function (KKR-GF) technique. Corresponding…

材料科学 · 物理学 2017-09-20 S. Mankovsky , H. Ebert

Whether chirality-induced spin selectivity (CISS) reflects coherent SU(2) spin rotation or incoherent spin-dependent filtering is a central unresolved question in molecular spintronics, with implications ranging from asymmetric chemistry to…

介观与纳米尺度物理 · 物理学 2026-05-08 Vishvendra S. Poonia

The Dzyaloshinskii-Moriya interaction is shown to result in a canting of spins in a single molecule transistor. We predict non-linear transport signatures of this effect induced by spin-orbit coupling for the generic case of a molecular…

介观与纳米尺度物理 · 物理学 2015-05-14 S. Herzog , M. R. Wegewijs

We theoretically investigate the radial-spin-wave induced magnetic vortex switching in the presence of Dzyaloshinskii-Moriya interaction (DMI). From micromagnetic simulations, we observe a circular-to-radial vortex phase transition by…

介观与纳米尺度物理 · 物理学 2020-05-29 Zhenyu Wang , Yunshan Cao , Ruifang Wang , Bo Liu , Hao Meng , Peng Yan

It has been shown that in magnets possessing an inversion center in the absence of deformations, a torsion-induced Dzyaloshinsky-Moriya interaction (tiDMI) can arise. A microscopic mechanism for this interaction is described, involving the…

介观与纳米尺度物理 · 物理学 2025-11-27 M. A. Kuznetsov , A. A. Fraerman

We formulate a phenomenological description of thin ferromagnetic layers with inversion asymmetry where the single-domain magnetic dynamics experiences magnon current-induced torques and leads to magnon-motive forces. We first construct a…

介观与纳米尺度物理 · 物理学 2015-04-15 Alexey A. Kovalev , Utkan Güngördü

Hybrid multiferroic films are fabricated by depositing of Pt/Co/Pt multilayers onto [001] and [110] cuts of PMN-PT crystal. The dependence of the interfacial Dzyaloshinskii-Moriya interaction (iDMI) on applied electric field is…

材料科学 · 物理学 2024-01-10 O. G. Udalov , R. V. Gorev , N. S. Gusev , A. V. Sadovnikov , M. V. Sapozhnikov

In this paper, we generalize the results of S. Oh (Physics Letters A. 644-647 \textbf{373 }) to Dzyaloshinski-Moriya model under nonuniform external magnetic field to investigate the relation between entanglement, geometric phase (or Berry…

量子物理 · 物理学 2016-08-12 G. Najarbashi , B. Seifi

We consider the spin-1/2 anisotropic XY chain in a transverse (z) field with the Dzyaloshinskii-Moriya interaction directed along z-axis in spin space to examine the effect of the Dzyaloshinskii-Moriya interaction on the zz, xx and yy…

强关联电子 · 物理学 2007-12-21 Oleg Derzhko , Taras Verkholyak , Taras Krokhmalskii , Helmut Büttner

We have studied the phase diagram and entanglement of the one dimensional Ising model with Dzyaloshinskii-Moriya (DM) interaction. We have applied the quantum renormalization group (QRG) approach to get the stable fixed points, critical…

强关联电子 · 物理学 2009-11-13 R. Jafari , M. Kargarian , A. Langari , M. Siahatgar

The magnetic form factors of $^2$H, $^3$H, and $^3$He, deuteron photodisintegration cross sections at low energies, and deuteron threshold electrodisintegration cross sections at backward angles in a wide range of momentum transfers, are…

The Dzyaloshinskii-Moriya interaction (DMI) is a chiral interaction that favors formation of domain walls. Recent experiments and ab initio calculations show that there are multiple ways to modify the strength of the interfacially induced…

材料科学 · 物理学 2017-04-05 Jeroen Mulkers , Bartel Van Waeyenberge , Milorad V. Milošević

Frustrated quantum spin systems exhibit exotic physics induced by external magnetic field with anisotropic interactions. Here, we study the effect of non-uniform Dzyaloshinskii-Moriya (DM) interactions on a quasi-two-dimensional…

量子气体 · 物理学 2020-02-26 Tianqi Chen , Chu Guo , Pinaki Sengupta , Dario Poletti

A variational treatment for a two-electron quantum dot (the artificial helium atom) is proposed which leads to exact answer for the ground state energy. Depending on the magnetic field value the singlet-triplet and triplet-triplet…

介观与纳米尺度物理 · 物理学 2007-05-23 Subinoy Das , Pallab Goswami , J. K. Bhattacharjee

The ground state phase diagram of a spin $S=1/2$ $XXZ$ Heisenberg chain with spatially modulated Dzyaloshinskii-Moriya (DM) interaction $ {\cal H}= \sum_n J\left[\left(S^x_n S^x_{n+1} +S^y_n S^y_{n+1}+\Delta S^z_n…

强关联电子 · 物理学 2019-06-04 N. Avalishvili , G. I. Japaridze , G. L. Rossini

Using first-principle calculations, we demonstrate several approaches to manipulate Dzyaloshinskii-Moriya Interaction (DMI) in ultrathin magnetic films. First, we find that DMI is significantly enhanced when the ferromagnetic (FM) layer is…

材料科学 · 物理学 2018-08-20 Hongxin Yang , Olivier Boulle , Vincent Cros , Albert Fert , Mairbek Chshiev

Chirality of materials in nature appears when there are asymmetries in their lattice structures or interactions in a certain environment. Recent development of quantum simulation technology has enabled the manipulation of qubits.…

强关联电子 · 物理学 2016-06-23 Tetsufumi Tanamoto