Magnetotransport in Sr3PbO antiperovskite
Magnetotransport in Sr3PbO antiperovskite
复制标题
Sr3PbO 反钙钛矿中的磁输运
DOI：
10.1103/physrevb.98.115203
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发表时间：
2018
影响因子：
3.7
通讯作者：
Takagi H.
中科院分区：
文献类型：
--
作者：
Suetsugu S.;Hayama K.;Rost A. W.;Nuss J.、Muhle C.;Kim J.;Kitagawa K.;Takagi H.
新的拓扑现象的三维（3D）狄拉克电子的预期。研究了理论上被认为是三维重Dirac电子系统的反钙钛矿体系的磁输运性质。对Shubnikov-de哈斯振荡和霍尔电阻率的测量表明，存在低密度（）的空穴，其回旋质量极小。磁电阻在磁场中呈线性，其大小与温度无关。这些结果完全符合的三维质量狄拉克电子的存在。反钙钛矿的化学灵活性和我们在家族成员中的发现表明它们有潜力作为探索奇异拓扑相的模型系统。
Novel topological phenomena are anticipated for three-dimensional (3D) Dirac electrons. The magnetotransport properties of cubicantiperovskite, theoretically proposed to be a 3D massive Dirac electron system, are studied. The measurements of Shubnikov–de Haas oscillations and Hall resistivity indicate the presence of a low density () of holes with an extremely small cyclotron mass of. The magnetoresistanceis linear in magnetic fieldwith the magnitude independent of temperature. These results are fully consistent with the presence of 3D massive Dirac electrons in. The chemical flexibility of the antiperovskites and our findings in the family memberpoint to their potential as a model system in which to explore exotic topological phases.