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首页> 外文期刊>Physical review. B, Condensed Matter And Materials Physics >Spin-orbit coupling effects on transport in carbon nanotubes with adatoms
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Spin-orbit coupling effects on transport in carbon nanotubes with adatoms

机译:自旋轨道耦合对含碳原子的碳纳米管输运的影响

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摘要

Rashba term induced by adatoms is introduced and its effect on the transport in finite carbon nanotubes is studied. The spin-orbit coupling leads to spin-flip conductance and splits the conductance peak near the Fermi level due to the break of orbit degeneracy. Moreover, spin-resolved current can be controlled by adjusting the spin-orbit coupling strength. How the spin-orbit coupling affects the tunneling magnetoresistence and the spin-valve effect in the nanotube-based magnetic tunnel junction is also explored. Significant role of electronic spin is confirmed and it may give the prospect for designing new devices by utilizing the SO coupling in carbon nanotubes.
机译:介绍了由原子引发的Rashba术语,并研究了其对有限碳纳米管中输运的影响。自旋轨道耦合导致自旋翻转电导,并且由于轨道简并性的破坏而在费米能级附近分裂了电导峰。此外,可以通过调节自旋轨道耦合强度来控制自旋分辨电流。还探讨了自旋轨道耦合如何影响隧穿磁阻和基于纳米管的磁性隧道结中的自旋阀效应。证实了电子自旋的重要作用,并可能通过利用碳纳米管中的SO耦合为设计新器件提供前景。

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