中文
相关论文

相关论文: Robust cycloid crossover driven by anisotropy in t…

200 篇论文

Magnetic anisotropy of spin models with directional-dependent interactions in the high-temperature paramagnetic phase is theoretically studied. Using a high temperature expansion, we show that the Ising type directional-dependent…

强关联电子 · 物理学 2017-05-16 Hiroaki Ishizuka

Magnetic skyrmions are vortex-like spin textures, which can be manipulated by external stress or pressure via magnetoelastic effects. Here, we present the observation of isostructural phase transition in a biskyrmion host hexagonal MnNiGa…

Magnetic anisotropy in atomically thin correlated heterostructures is essential for exploring quantum magnetic phases for next-generation spintronics. Whereas previous studies have mostly focused on van der Waals systems, here, we…

Understanding the spin-wave excitations of chiral magnetic order, such as the skyrmion crystal (SkX), is of fundamental interest to confirm such exotic magnetic order. The SkX is realized by competing Dzyaloshinskii-Moriya and…

强关联电子 · 物理学 2020-12-14 Narayan Mohanta , Andrew D. Christianson , Satoshi Okamoto , Elbio Dagotto

We utilize variable-temperature, variable-frequency magneto-optical transverse magnetic susceptibility technique to study the static and dynamical magnetic properties of a thin-film CoO/Permalloy bilayer. Our measurements demonstrate that…

材料科学 · 物理学 2019-01-30 Sergei Urazhdin , Weijie Li , Lydia Novozhilova

High tunability of two dimensional magnetic materials (by strain, gating, heterostructuring or otherwise) provides unique conditions for studying versatile magnetic properties and controlling emergent magnetic phases. Expanding the scope of…

计算物理 · 物理学 2020-07-07 Raí M. Menezes , Clécio C. de Souza Silva , Milorad V. Milošević

We establish theoretically that in nonmagnetic semiconducting bilayer or multilayer thin film systems rolled up into compact quasi-one-dimensional nanoarchitectures, the ballistic magnetoresistance is very anisotropic: conductances depend…

介观与纳米尺度物理 · 物理学 2014-12-10 Ching-Hao Chang , Jeroen van den Brink , Carmine Ortix

Magnetic skyrmions are nanoscale spin textures that their thermal stability originates from the nontrivial topology in nature. Recently, a plethora of topological spin textures have been theoretically predicted or experimentally observed,…

介观与纳米尺度物理 · 物理学 2024-04-08 Yu Li , Yuzhe Zang , Runze Chen , Christoforos Moutafis

Using micromagnetic simulation, we investigate the self-sustained oscillation of magnetic skyrmion in a ferromagnetic circular nanodot, driven by spin-torque which is generated from a reference layer of a circular nanopillar device. We…

介观与纳米尺度物理 · 物理学 2019-08-19 Debasis Das , Bhaskaran Muralidharan , Ashwin Tulapurkar

Precision measurements of the magnetization and ac susceptibility of Cu$_2$0SeO$_3$ are reported for magnetic fields along different crystallographic directions, focussing on the border between the conical and the field-polarized state for…

强关联电子 · 物理学 2021-04-01 M. Halder , A. Chacon , A. Bauer , W. Simeth , S. Mühlbauer , H. Berger , L. Heinen , M. Garst , A. Rosch , C. Pfleiderer

We report the magnetic, magnetodielectric, and electric polarization properties of single crystals of the Co-based Kitaev Spin Liquid (KSL) candidate Na$_2$Co$_2$TeO$_6$ (NCTO). The sample shows magnetic transitions at 26 K, 16 K, and 5 K,…

We study spin transport in the one-dimensional anisotropic S = 1 Heisenberg model. Particular emphasis is given to dynamics at infinite temperature, where current autocorrelations and spatio-temporal correlation functions are obtained by…

统计力学 · 物理学 2019-10-16 Jonas Richter , Niklas Casper , Wolfram Brenig , Robin Steinigeweg

We have studied anisotropic magnetoresistance (MR) and magnetization with rotating magnetic field (B) within $CuO_2$ plane in lightly doped AF $Nd_{2-x}Ce_xCuO_{4}$. \emph{A giant anisotropy} in MR is observed at low temperature below 5 K.…

超导电性 · 物理学 2009-11-13 T. Wu , C. H. Wang , G. Wu , D. F. Fang , J. L. Luo , G T. Liu , X. H. Chen

Magnetic skyrmions have the potential to provide solutions for low-power, high-density data storage and processing. One of the major challenges in developing skyrmion-based devices is the skyrmions' magnetic stability in confined…

Implementation of antiferromagnetic compounds as active elements in spintronics has been hindered by their insensitive nature against external perturbations which causes difficulties in switching among different antiferromagnetic spin…

The out-of-plane resistivity ($\rho_c$) and magnetoresistivity (MR) are studied in antiferromangetic (AF) $Nd_{2-x}Ce_xCuO_{4}$ single crystals, which have three types of noncollinear antiferromangetic spin structures. The apparent…

强关联电子 · 物理学 2007-05-23 X. H. Chen , C. H. Wang , G. Y. Wang , X. G. Luo , J. L. Luo , G. T. Liu , N. L. Wang

Inducing sizable spin--orbit interactions in graphene by proximity effect is establishing as a successful route to harnessing two-dimensional Dirac fermions for spintronics. Semiconducting transition metal dichalcogenides (TMDs) are an…

介观与纳米尺度物理 · 物理学 2018-12-19 Manuel Offidani , Aires Ferreira

Magnetic skyrmions are topologically protected spin textures that can act as reconfigurable nanoscale information carriers. In synthetic antiferromagnets (SAFs), interlayer exchange coupling offers an additional control parameter beyond the…

Detailed understanding of spin dynamics in magnetic nanomaterials is necessary for developing ultrafast, low-energy and high-density spintronic logic and memory. Here, we develop micromagnetic models and analytical solutions to elucidate…

材料科学 · 物理学 2020-04-28 Furkan Şahbaz , Mehmet C. Onbaşlı

We investigate the spin excitation spectra in chiral and polar magnets by the linear spin-wave theory for an effective spin model with symmetric and antisymmetric long-range interactions. In one dimension, we obtain the analytic form of the…

强关联电子 · 物理学 2021-12-09 Yasuyuki Kato , Satoru Hayami , Yukitoshi Motome