2009年, 在具有B20结构的手性磁材料MnSi中发现了磁斯格明子, 随后被证实磁斯格明子的存在是具有Dzyaloshinsky-Moriya相互作用 (DMI) 的磁性化合物的共同特征。 在本工作中, 我们从基础层面提供了关于DMI诱导磁斯格明子材料物理的基本理解, 介绍了材料的点群与DMI之间的关系; 随后, 重点介绍了在磁化和磁输运测量中...
We reconsider the conventional Moriya approach to the Dzyaloshinsky-Moriya antisymmetric exchange coupling for a single Cu 1 -O-Cu 2 bond in cuprates using a perturbation scheme that provides an optimal way to account for intra-atomic electron correlations, low-symmetry crystal field, and local...
根据Moriya对DM相互作用的对称性要求，宏观D¯矢量不为0则体系的宏观中心反演对称性应该破缺。另宏观物...
内容提示: 中国基础科学·科技计划2019·1·China Basic Science 39 基于 Dzyaloshinsky-Moriya 相互作用和人工的磁斯格明子研究◆孙亮 1,2,3 杜海峰 3,4 缪冰锋 1,2,3 田明亮 3,4 丁海峰 1,2,3 王伯根 1,2,31. 南京大学固体微结构物理国家重点实验室,南京 210093; 2. 南京大学物理学院,南京 210093;...
Simulations of Ruderman-Kittel-Kasuya-Yosida spin-glasses with Dzyaloshinsky-Moriya anisotropy show three resonance modes which are well described by the triad model. The behavior of the modes and the breakdown of this picture for large anisotropy are studied. A quantitative study is made of the...
Negativity 几何量子失协 Dzyaloshinsky-Moriya相互作用本文分析了与各自自旋链环境相互耦合的qubit和qutrit中的negativity和几何量子失协动力学,讨论了系统和环境间的耦合强度g、各向异性参数γ、粒子数N、初始参数p以及Dzyaloshinsky-Moriya相互作用对系统演化的影响,得到一些重要结论。另外发现,依赖于各参数的选取,...
dzyaloshinsky-moriya spin canting in the ltt phase of la2-x-yeuysrxcuo4 热度: Symmetry-breaking in the independent particle model nature of… 热度: gravitons as goldstone modes and the spontaneous symmetry breaking of diffeomorphism invariance ...
磁性斯格明子是一种实空间拓扑准粒子,它展现出丰富,新奇的物理性质,为自旋电子学的研究提供了新的方向.另一方面,由于其具有尺寸小,稳定性高,易操控等特性,在未来的存储器件中也有潜在应用价值.本文简单介绍了在国家重点研发计划量子调控与量子信息重点专项(2017YFA0303200)资助下,对基于Dzyaloshinsky-Moriya相互作用...
By introducing the Dzyaloshinsky-Moriya(DM) interaction, the Loschmidt Echo(LE) of a quantum system consisting of a central spin and its surrounding environment characterized by an XY spin chain was investigated analytically and numerically. At the critical points of the magnetic field, the LE ...
We report in this work, an analytical study of quantum soliton in 1D Heisenberg spin chains with Dzyaloshinsky-Moriya Interaction (DMI) and Next-Nearest-Neighbor Interactions (NNNI). By means of the time-dependent Hartree approximation and the semi-discrete multiple-scale method, the equation of...