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Spin Dynamics of a Quasi-one-dimensional Electron in the Quantum Limit by Fauzi, M. H.; Takahashi, M.; Aono, T.; Hashimoto, K.; Hirayama, Y. is a scholarly article available to read on EtoBox.

What is Spin Dynamics of a Quasi-one-dimensional Electron in the Quantum Limit about?

We study electron spin dynamics whose movement is restricted to the lowest one dimensional subband channel ($G \le 2e^2/h $), through nuclear spin relaxation rate measurement ($1/T_1$). We observe an unusual double-peak structure in the $1/T_1$ profile below the lowest subband level, where the up and down spin edge channel is still largely overlap. This profile significantly deviates from the behavior predicted by a non-interacting electron model, in which the only source of relaxation is through thermal fluctuations near the Fermi level. Our experimental results, supported by theoretical calculations, suggest that enhanced electron-electron interactions at the center of a quantum point contact are the likely origin of the observed double-peak structures.

Author

Fauzi, M. H.; Takahashi, M.; Aono, T.; Hashimoto, K.; Hirayama, Y.

Published

2024

Language

EN