搜索结果: 1-15 共查到“物理学其他学科 Magnetic”相关记录15条 . 查询时间(0.125 秒)
[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...
UI physicist says current in one iron magnetic sheet can create quantized spin waves in another, separate sheet
UI physicist iron magnetic sheet create quantized spin waves separate sheet
2016/8/1
The findings of a new study by University of Iowa theoretical physicist Michael Flatte could play a role in the development of future generations of smaller, more energy-efficient computers and e...
Riedo leads novel study on designing reconfigurable magnetic nanopatterns
Riedo reconfigurable magnetic nanopatterns
2016/3/21
A team of international scientists led by researchers of the CUNY Advanced Science Research Center (ASRC) and the Politecnico of Milan in Italy has demonstrated a novel approach for designing fully re...
Analysis and Optimisation of Pulse Dynamics for Magnetic Stimulation
Magnetic stimulation, TMS, inductive stimulation, waveform optimization,neuron model, loss power.
2011/9/2
Magnetic stimulation is a standard tool in brain research and many elds of neurology, as well as psychiatry. From a physical perspective, one key aspect of this method is the ineciency of available ...
Engineering the magnetic properties of the Mn$_{13}$ cluster by doping
Engineering the magnetic properties Mn
2011/9/9
With a goal to produce giant magnetic moment in Mn13 cluster which will be useful for practical applications, we have considered the structure and magnetic properties of pure Mn13 cluster and substitu...
Differential Light Shift Cancellation in a Magnetic-Field-Insensitive Transition of $^{87}$Rb
Differential Light Shift Cancellation Magnetic-Field-Insensitive Transition
2010/10/29
We demonstrate near-complete cancellation of the differential light shift of a two-photon magnetic-field-insensitive microwave hyperfine (clock) transition in $^{87}$Rb atoms trapped in an optical la...
One Dimensional Magnetized TG Gas Properties in an External Magnetic Field
TG Gas External Magnetic Field potential energy
2010/3/10
With Girardeau's Fermi-Bose mapping, we have constructed the eigenstates of a TG gas in an external magnetic field. When the number of bosons $N$ is commensurate with the number of potential cycles $M...
Dynamics of Two Sliding Magnetic Surfaces
Sliding Nano Magnetic Surfaces Magnetic Friction Molecular Dynamic Monte Carlo
2010/9/29
We use Monte Carlo and Molecular Dynamics simulation to study a magnetic tip-sample interaction. Our interest is to understand the mechanism of heat dissipation when the forces involved in the system ...
Excitonic Emission of a Triply Charged Quantum Dot Molecule in a Magnetic Field
Charge excitons Excitons in magnetic fields Quantum dots
2010/9/25
We calculate the exciton states of a Quantum Dot (QD) and a Quantum Dot Molecule (QDM) in an exact way for single, double and triply charged excitons without and with an applied external magnetic fiel...
Non-Twist Field Line Mappings for Tokamaks with Reversed Magnetic Shear
Non-Twist Field Line Mappings Tokamaks Reversed Magnetic Shear
2010/10/27
The structure of magnetic field lines in a tokamak with reversed magnetic shear is investigated by means of analytically derived area-preserving non-twist Poincar´e maps. The basic configuration...
Longitudinal Magnetic Field Effect on the Electrical Breakdown in Low Pressure Gases
Longitudinal Magnetic Field Effect the Electrical Breakdown Low Pressure Gases
2010/10/27
The electrical breakdown has been investigated for low-pressure argon and nitrogen discharges under the influence of an external longitudinal magnetic field. Plane-parallel aluminum electrodes (5 cm d...
Small Scale Magnetic Field Evolution In The First Objects Formed In The Universe
Small Scale Magnetic Field Evolution The First Objects In The Universe
2010/10/27
Large scale magnetic fields in galaxies are thought to be generated, by a mean field dynamo. In order to have generated the fields observed, the dynamo would have had to have operated for a sufficient...
Shubnikov-de Haas Oscillations in Digital Magnetic Heterostructures
Shubnikov-de Haas Oscillations Digital Magnetic Heterostructures
2010/10/21
In this paper we theoretically investigate the magnetic-field and temperature dependence of the Shubnikov-de Haas oscillations in group II-VI modulation-doped Digital Magnetic Heterostructures. We sel...
Magnetic Nanostructures for Lateral Spin-Transport Devices
Magnetic Nanostructures Lateral Spin-Transport Devices
2010/10/21
We review our investigations on nanostructured ferromagnets fabricated on semiconductor heterostructures. We show that ballistic electrons in the semiconductor are in particular sensitive to local str...
Diluted Magnetic Ga1 - xMnxN Alloys: a First-Principles Study
Diluted Magnetic Ga1 - xMnxN Alloys a First-Principles Study
2010/10/22
The utilization of the quantum properties of the electron spin wave function will allow the development of a new class of devices. The problem is still controversial and unsettled, even qualitatively,...