Zero-Field Satellites of a Zero-Bias Anomaly

Abstract

Spin-orbit (SO) splitting, $\pm {\omega }_{SO}$, of the electron Fermi surface in two-dimensional systems manifests itself in the interaction-induced corrections to the tunneling density of states, $\nu (\epsilon )$. Namely, in the case of a smooth disorder, it gives rise to the satellites of a zero-bias anomaly at energies $\epsilon =\pm 2{\omega }_{SO}$. Zeeman splitting, $\pm {\omega }_Z$, in a weak parallel magnetic field causes a narrow {\em plateau} of a width $\delta \epsilon =2{\omega }_Z$ at the top of each sharp satellite peak. As ${\omega }_Z$ exceeds ${\omega }_{SO}$, the SO satellites cross over to the conventional narrow maxima at $\epsilon =\pm 2{\omega }_Z$ with SO-induced plateaus $\delta \epsilon =2{\omega }_{SO}$ at the tops.

7 pages including 2 figures

References in corpus (1)

• Spin-orbit coupling effects on quantum transport in lateral semiconductor dots

Cited by in corpus (5)

• Possible evidence of a spontaneous spin-polarization in mesoscopic 2D electron systems
• Universal spin-induced Time Reversal Symmetry breaking in two-dimensional electron gases with Rashba spin-orbit interaction
• Scanning tunneling spectroscopy of a dilute two-dimensional electron system exhibiting Rashba spin splitting
• Tunneling between 2D electron layers with correlated disorder: anomalous sensitivity to spin-orbit coupling
• Spin-orbit-induced correlations of the local density of states in two-dimensional electron gas