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首页> 外文期刊>Physical review >Rashba effect in single-layer antimony telluroiodide SbTeI
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Rashba effect in single-layer antimony telluroiodide SbTeI

机译:Rashba在单层锑碲化锑SbTeI中的作用

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摘要

Exploring spin-orbit coupling (SOC) in single-layer materials is important for potential spintronics applications. Using first-principles calculations, we show that single-layer antimony telluroiodide SbTeI behaves as a two-dimensional semiconductor exhibiting a G_0W_0 band gap of 1.82 eV. More importantly, we observe the Rashba spin splitting in the SOC band structure of single-layer SbTeI with a sizable Rashba coupling parameter of 1.39 eV A, which is significantly larger than that of a number of two-dimensional systems including surfaces and interfaces. The low formation energy and real phonon modes of single-layer SbTeI imply that it is stable. Our study suggests that single-layer SbTeI is a candidate single-layer material for applications in spintronics devices.
机译:探索单层材料中的自旋轨道耦合(SOC)对于潜在的自旋电子学应用很重要。使用第一性原理计算,我们显示出单层碲化锑碘化锑SbTeI表现为二维半导体,其G_0W_0带隙为1.82 eV。更重要的是,我们观察到单层SbTeI的SOC带结构中的Rashba自旋分裂,其Rashba耦合参数为1.39 eV A,该参数明显大于包括表面和界面在内的许多二维系统的Rashba耦合参数。单层SbTeI的低形成能和真实声子模表明它是稳定的。我们的研究表明,单层SbTeI是自旋电子器件中应用的候选单层材料。

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