手征孤子晶格中的自旋可调动力学
Tunable spin dynamics in chiral soliton lattice
摘要：
研究了在电场作用下，一维自旋链中与传导电子耦合的手征孤子晶格的动力学行为。由于CSL的周期可以通过外加磁场来控制，因此引起了人们的广泛兴趣。我们澄清CSL动力学的依赖于其周期。用集体坐标和SU（2）规范方法进行了分析。结果表明，CSL的速度随着周期的变长而变慢。我们还提到了速度和磁阻之间的关系。
英文摘要：
We study dynamics of a chiral soliton lattice (CSL) in a classical one-dimensional spin chain coupled to the conduction electrons under an electric field. The CSL has attracted much interest because its period can be easily controlled by an external magnetic field. We clarify the dependence of the CSL dynamics on its period. A collective coordinate and an SU(2) gauge method are used for the analysis. It turns out that the velocity of the CSL becomes slower as the period becomes longer. We also mention a relation between the velocity and the magnetic resistance.
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