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Significant new functionality is reported for torsion mechanical tools aimed at full magnetic characterizations of both spin statics and dynamics in micro- and nanostructures. Specifically, two orthogonal torque directions are monitored and…

We show that anisotropy of the space naturally leads to new terms in the expression of Lorentz force, as well as in the expressions of currents.

广义相对论与量子宇宙学 · 物理学 2008-12-09 Nicoleta Brinzei , Sergey V. Siparov

It is shown that it follows from our model of the electron that its magnetic moment has an anomalous part if the magnetic field energy is taken into account. That means that the magnetic moment of our model of the electron is 1.0000565…

综合物理 · 物理学 2013-01-21 E. L. Koschmieder

The exact form of the kinetic energy functional has remained elusive in orbital-free models of density functional theory (DFT). This has been the main stumbling block for the development of a general-purpose framework on this basis. Here,…

介观与纳米尺度物理 · 物理学 2020-01-06 Thomas Pope , Werner Hofer

Influence of the weak electric field on the electronic structure of the Fibonacci superlattice is considered. The electric field produces a nonlinear dynamics of the energy spectrum of the aperiodic superlattice. Mechanism of the…

介观与纳米尺度物理 · 物理学 2012-01-16 Maciej Woloszyn , Bartlomiej J. Spisak

We investigate the question discussed in the literature as to whether the magnetic field can perform work using two models that describe interacting magnetic dipoles. In the first model, the dipoles are realized by rigidly rotating charge…

经典物理 · 物理学 2023-12-05 Heinz-Jürgen Schmidt , Thomas Bröcker

The discovery of fascinating ways to control and manipulate antiferromagnetic materials have garnered considerable attention as an attractive platform to explore novel spintronic phenomena and functionalities. Layered antiferromagnets…

The Abelian Born-Infeld classical non-linear electrodynamic has been used to investigate the electric and magnetostatic fields generated by a point-like electrical charge at rest in an inertial frame. The results show a rich internal…

高能物理 - 理论 · 物理学 2008-11-26 S. O. Vellozo , Jose A. Helayel-Neto , A. W. Smith , L. P. G. De Assis

The problem of anisotropic pressures arising as a consequence of the spatial symmetry breaking introduced by an external magnetic field in quantum systems is discussed. The role of the conservation of energy and momentum of external fields…

天体物理学 · 物理学 2009-02-11 A. Perez Martinez , H. Perez Rojas , H. Mosquera Cuesta

In conventional metals, electronic transport in a magnetic field is characterized by the motion of electrons along orbits on the Fermi surface, which usually causes an increase in the resistivity through averaging over velocities. Here we…

介观与纳米尺度物理 · 物理学 2016-11-07 Maxim Breitkreiz , Philip M. R. Brydon , Carsten Timm

The two dimensional Spin-1 Blume-Capel ferromagnet is studied by Monte Carlo simulation with Metropolis algorithm. Starting from initial ordered spin configuration the reversal of magnetisation is investigated in presence of a magnetic…

统计力学 · 物理学 2021-01-29 Moumita Naskar , Muktish Acharyya

A new term describing interactions between charge and potentials may be added to the right hand side of the Einstein equations. In the proposed term an additional tensor has been introduced containing a charge density, analogous to the…

综合物理 · 物理学 2016-09-08 Jacob Biemond

The classical, square lattice, uniaxially anisotropic Heisenberg antiferromagnet in a magnetic field parallel to the easy axis is studied using Monte Carlo techniques. The model displays a long-range ordered antiferromagnetic, an…

统计力学 · 物理学 2007-05-23 M. Holtschneider , W. Selke , R. Leidl

The physical consequences of the relativistic and nonrelativistic approaches to describe the energy levels of electrons which propagate in a static homogeneous magnetic field are considered. It is shown that for a given strength of the…

高能物理 - 唯象学 · 物理学 2008-03-31 H. J. Schreiber , N. B. Skachkov

The spin-1/2 XXZ Heisenberg magnet is considered for the case of the anisotropy parameter tending to infinity (so-called, Ising limit). A thermal correlation function of the ferromagnetic string is calculated over the ground state. The…

统计力学 · 物理学 2019-01-14 N. M. Bogoliubov , C. Malyshev

Observational studies of magnetic fields are vital as magnetic fields play a crucial role in various astrophysical processes, including star formation, accretion of matter, transport processes (e.g., transport of heat), and cosmic rays. We…

星系天体物理 · 物理学 2015-06-04 Huirong Yan , A. Lazarian

The acceleration of energetic particle transport in high amplitude magnetosonic and Alfvenic turbulence is considered using the method of Monte Carlo particle simulations, involving integration of particle equations of motion. We derive the…

天体物理学 · 物理学 2009-09-25 G. Michalek , M. Ostrowski , R. Schlickeiser

In order to depict the quantization of Landau levels, we introduce Dirac $\delta$ function, and gain a concise expression for the electron Fermi energy, $E_{F}(e) \propto B^{1/4}$. The high soft X-ray luminosities of magnetars may be…

高能天体物理现象 · 物理学 2015-06-03 Qiu He Peng , Zhi Fu Gao , Na Wang

Shape effects in magnetic particles are widely studied, because of the ability of the shape and the size to control the parameters of a sample during its production. Experiments with nano-sized samples show that the shape can affect also…

介观与纳米尺度物理 · 物理学 2013-06-19 Svitlana V. Kondovych , Helen V. Gomonay , Vadim M. Loktev

We consider a single-domain ferromagnetic particle with uniaxial anisotropy coupled to a single-domain soft ferromagnetic particle (superparamagnetic particle). The problem of thermally agitated magnetization reversal in this case can be…

材料科学 · 物理学 2009-11-07 Vladimir L. Safonov , H. Neal Bertram
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