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[成果]北京师范大学物理学系张金星和沈卡小组与合作者以“Strain-Driven Dzyaloshinskii-Moriya Interaction for Room-Temperature Magnetic Skyrmions”为题发表学术成果（图）
磁性体系；多铁性材料；磁电耦合
2021/11/1
Dzyaloshinskii-Moriya（DM）相互作用，是一种反对称自旋交换作用，于上个世纪六十年代由I. Dzyaloshinskii利用唯象理论提出，并由T. Moriya在超交换相互作用中考虑自旋轨道耦合而发展的微观理论，被用来解释磁性体系中诸多新奇物理现象（自旋玻璃中的各向异性场、多铁性材料中的磁电耦合、自旋波的非对称色散关系、非共线磁结构等）。近十几年来，由于DM相互作用而实现的螺旋...
Comment on "Temperature dependence of the Casimir force for lossy bulk media"
Temperature dependence Casimir force lossy bulk media
2010/10/29
Recently Yampol'skii et al. [Phys. Rev. A v.82, 032511 (2010)] advocated that Lifshitz theory is not applicable when the characteristic wavelength of the fluctuating electromagnetic field, responsible...
Measurement of damping and temperature: Precision bounds in Gaussian dissipative channels
Measurement damping temperature Precision bounds Gaussian dissipative channels
2010/10/29
We present a comprehensive analysis of the performance of different classes of Gaussian states in the estimation of Gaussian phase-insensitive dissipative channels. In particular, we investigate the ...
Effects of Dust Charge Variation On Electrostatic Waves In Dusty Plasmas With Temperature Anisotropy
Electrostatic waves Kinetic theory Magnetized dusty plasmas Dust charge fluctuation Wave propagation
2010/7/5
We utilize a kinetic approach to the problem of wave propagation in dusty plasmas, taking into account the variation of the charge of the dust particles due to inelastic collisions with electrons and ...
Determination of Plasma Temperature by a Semi-Empirical Method
Plasma Temperature a Semi-Empirical Method
2010/10/27
Doppler or Stark line broadening effects are generally used to determinate plasma temperature. These methods are difficult to apply to spectra of highly ionized atoms due to the short wavelengths invo...
Relativistic Equations of State at Finite Temperature
Relativistic Equations of State Finite Temperature
2010/10/25
In this work we study the effects of temperature on the equations of state within a relativistic model, with the inclusion of the baryons of the octet over a wide range of densities. We compare the re...
Dielectric Constant and Density of Water as a Function of Pressure at Constant Temperature
Water Constant Temperature Dielectric Constant Density of Water
2010/10/18
In order to simulate the effects of hydrostatic pressure on protein folding/unfolding it is necessary to accurately describe the behavior of the dielectric constant and the density of the solvent (wat...