Tunneling conductance of a mesoscopic ring with spin-orbit coupling and Tomonaga-Luttinger interaction

Details Tunneling conductance of a mesoscopic ring with spin-orbit coupling and Tomonaga-Luttinger interaction Tunneling conductance of a mesoscopic ring with spin-orbit coupling and Tomonaga-Luttinger interaction

2006-03-08

arxiv.org/abs/cond-mat/0603211v2

Phys. Rev. B 74, 045301 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

13 pages, 6 figures, minor corrections

Scientific paper

10.1103/PhysRevB.74.045301

We study the tunneling current through a mesoscopic two-terminal ring with spin-orbit coupling, which is threaded by a magnetic flux. The electron-electron interaction in the ring is described in terms of a Tomonaga-Luttinger model which also allows us to account for a capacitive coupling between the ring and the gate electrode. In the regime of weak tunneling, we describe how, at temperatures lower than the mean level spacing, the peak positions of the conductance depend on magnetic flux, spin-orbit coupling strength, gate voltage, charging energy, and interaction parameters (charge and spin velocity and stiffness).

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