论兰道-利夫希茨方程的广义化问题

IF 0.9 4区 物理与天体物理 Q4 PHYSICS, CONDENSED MATTER Physics of the Solid State Pub Date : 2024-05-23 DOI:10.1134/S1063783424600432
S. O. Gladkov
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引用次数: 0

摘要

摘要 利用编制在时间和坐标反转操作方面不变的磁结构能量表达式的方法,得到了一个微分方程系,该微分方程系概括了 Landau-Lifshitz 和 Hilbert 结果。在获得这些方程时,考虑到磁场强度的伪矢量性质,得到了耗散函数的明确表达式。对所得到的强磁场情况下的方程进行了分析,并预测了在频率 \(\bar {\omega }\) = \(\xi {{\gamma }_{e}}{{M}_{0}}\) (其中系数ξ大于统一值)下存在磁化实际连续振荡的可能性。
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On the Problem of Generalization of the Landau–Lifshitz Equation

Using the method of compiling an expression invariant with respect to the operations of inversion of time and coordinates for the energy of a magnetic structure under the influence of some external effective field which is considered an independent vector parameter of the problem, a system of differential equations generalized the Landau–Lifshitz and Hilbert results is obtained. When obtaining these equations, the explicit expression for the dissipative function are obtained taking into account the pseudovector the nature of the magnetic field strength. The analysis of the obtained equations for the case of strong magnetic fields is carried out and the possibility of the existence of practically continuous oscillations of the magnetization at a frequency \(\bar {\omega }\) = \(\xi {{\gamma }_{e}}{{M}_{0}}\) (where coefficient ξ is greater than unity) is predicted.

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来源期刊
Physics of the Solid State
Physics of the Solid State 物理-物理:凝聚态物理
CiteScore
1.70
自引率
0.00%
发文量
60
审稿时长
2-4 weeks
期刊介绍: Presents the latest results from Russia’s leading researchers in condensed matter physics at the Russian Academy of Sciences and other prestigious institutions. Covers all areas of solid state physics including solid state optics, solid state acoustics, electronic and vibrational spectra, phase transitions, ferroelectricity, magnetism, and superconductivity. Also presents review papers on the most important problems in solid state physics.
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