Effects of Spin-orbit Interaction on Persistent Current in a Nano Ring
Effects of Spin-orbit Interaction on Persistent Current in a Nano Ring
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Date
2015-01-01
Authors
Monisha, P. J.
Sankar, I. V.
Sil, Shreekantha
Chatterjee, Ashok
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Abstract
The persistent current for polaronic transport in a one dimensional Holstein-Hubbard ring is studied in the presence of Rashba spin orbit (RSO) interaction. The energy is calculated within the Hartree-Fock approximation, using Lang-Firsov transformation followed by block diagonalization. We have found that the strong electron-phonon interaction will reduce the persistent current while the spin-orbit interaction enhances the amplitude of the persistent current. The Drude weight is also calculated.
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Keywords
Drude weight,
Hartree-Fock approximation,
Holstein- Hubbard ring,
persistent current,
Rashba spin-orbit interaction
Citation
Materials Today: Proceedings. v.2(9)