We compute the electron spin resonance (ESR) intensity for one-dimensional quantum wires in semiconductor heterostructures, taking into account electron-electron interactions and spin-orbit coupling. The ESR spectrum is shown to be very sensitive to interactions. While in the absence of interactions, the spectrum is a flat band, characteristic threshold singularities appear in the interacting limit. This suggests the practical use of ESR to reveal spin dynamics in a Luttinger liquid.
@article{arxiv.cond-mat/0109161,
title = {ESR theory for interacting 1D quantum wires},
author = {A. De Martino and R. Egger},
journal= {arXiv preprint arXiv:cond-mat/0109161},
year = {2012}
}
Comments
7 pages, 2 figures. To be published in Europhys. Lett