Enhancement of spin-orbit coupling in Dirac semimetal Cd3As2 films by Sb doping
Enhancement of spin-orbit coupling in Dirac semimetal Cd3As2 films by Sb doping
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DOI：
10.1103/physrevb.103.045109
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发表时间：
2021-01
期刊：
影响因子：
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通讯作者：
Y. Nakazawa;M. Uchida;S. Nishihaya;M. Ohno;Shin Sato;M. Kawasaki
中科院分区：
文献类型：
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作者：
Y. Nakazawa;M. Uchida;S. Nishihaya;M. Ohno;Shin Sato;M. Kawasaki
研究了分子束外延生长的掺Sb的拓扑结构Dirac半金属材料Cd_3As_2的磁输运特性。在我们的弱反局域化分析中，我们发现自旋-轨道散射率显著增加，这表明Sb掺杂导致了原始带反转能量的显著增加。我们通过比较Sb掺杂的Cd3As2和其他化合物半导体，讨论了这种巨大的增强的可能的来源。Sb掺杂的Cd_3As_2将是进一步研究和功能化拓扑Dirac半金属的合适体系。
We present a study on magnetotransport in films of the topological Dirac semimetal Cd3As2 doped with Sb grown by molecular beam epitaxy. In our weak antilocalization analysis, we find a significant enhancement of the spin-orbit scattering rate, indicating that Sb doping leads to a strong increase of the pristine band-inversion energy. We discuss possible origins of this large enhancement by comparing Sb-doped Cd3As2 with other compound semiconductors. Sb-doped Cd3As2 will be a suitable system for further investigations and functionalization of topological Dirac semimetals.