论文标题
在建议的Weyl Semimetal Cealge的磁性状态下的自旋晶格松弛现象
Spin-lattice relaxation phenomena in the magnetic state of a suggested Weyl semimetal CeAlGe
论文作者
论文摘要
在这项工作中，我们报告了直流易感性，AC敏感性和相关技术，电阻率，横向和纵向磁磁性以及热能磁性半分守形的结果。这种化合物经历了抗铁磁类型的排序，约为5.2 K（T1）。在应用外部磁场的应用下，磁矩的平行比对在0.5特斯拉高于0.5。在低场和温度下，AC敏感性的频率和AC场振幅响应表明存在自旋晶格弛豫现象。自旋晶格相互作用的观察表明，Rashba-Dresselhaus自旋轨道相互作用的存在与反转和时间逆转对称性破坏有关。此外，由于Rashba-Dresselhaus旋转轨道相互作用，负纵向磁磁性的负和非对称纵向磁阻，这表明对磁路线的异常速度贡献，这是通过热容量进一步研究的。
In this work we report the results of DC susceptibility, AC susceptibility and related technique, resistivity, transverse and longitudinal magnetoresistance and heat capacity on polycrystalline magnetic semimetal CeAlGe. This compound undergoes antiferromagnetic type ordering around 5.2 K (T1). Under application of external magnetic fields, parallel alignment of magnetic moments is favored, above 0.5 Tesla. At low field and temperature, frequency and AC field amplitude response of AC susceptibility indicate to the presence of spin-lattice relaxation phenomena. The observation of spin-lattice interaction suggests to the presence of Rashba-Dresselhaus spin-orbit interaction which is associated with inversion and time reversal symmetry breaking. Additionally, presence of negative and asymmetric longitudinal magnetoresistance indicates anomalous velocity contribution to the magnetoresistance due to Rashba-Dresselhaus spin-orbit interaction which is further studied by heat capacity.
