论文标题
抗铁磁铁的镁纹理域中的镁动力学
Magnon dynamics in a Skyrmion-textured domain wall of antiferromagnets
论文作者
论文摘要
从理论上讲，我们研究了二维抗铁磁铁中镁质与天空纹理的结构壁之间的相互作用，并阐明了镁转运的产生特性。使用超对称量子力学，我们解决了域壁顶上木蛋白的散射问题，并获得了繁殖和结合木元模式的精确溶液。然后，我们在天空纹理的结构壁上发现它们的反射和折射特性，由于其非平凡的自旋纹理诱导的有效量规场，镁质岩石壁上经历了新兴磁场。基于获得的磁子和域壁的散射特性，我们表明，随着域壁的手性增加，热传输会降低。我们的结果表明，通过调节域壁的天空电荷密度可调节抗铁磁铁的热传输，这可能对实现电气可调的旋转热量量表设备有用。
We theoretically investigate the interaction between magnons and a Skyrmion-textured domain wall in a two-dimensional antiferromagnet and elucidate the resultant properties of magnon transport. Using supersymmetric quantum mechanics, we solve the scattering problem of magnons on top of the domain wall and obtain the exact solutions of propagating and bound magnon modes. Then, we find their properties of reflection and refraction in the Skyrmion-textured domain wall, where magnons experience an emergent magnetic field due to its non-trivial spin texture-induced effective gauge field. Based on the obtained scattering properties of magnons and the domain wall, we show that the thermal transport decreases as the domain wall's chirality increases. Our results suggest that the thermal transport of an antiferromagnet is tunable by modulating the Skyrmion charge density of the domain wall, which might be useful for realizing electrically tunable spin caloritronic devices.
