We study the spin-dependent geometric phase effect in mesoscopic rings of charge-density-wave(CDW) materials. When electron spin is explicitly taken into account, we show that the spin-dependent Aharonov-Casher phase can have a pronounced frustration effects on such CDW materials with appropriate electron filling. We show that this frustration has observable consequences for transport experiment. We identify a phase transition from a Peierls insulator to metal, which is induced by spin-dependent phase interference effects. Mesoscopic CDW materials and spin-dependent geometric phase effects, and their interplay, are becoming attractive opportunities for exploitation with the rapid development of modern fabrication technology.
@article{arxiv.cond-mat/9805160,
title = {Aharonov-Anandan Effect Induced by Spin-Orbit Interaction and Charge-Density-Waves in Mesoscopic Rings},
author = {Ya-Sha Yi and A. R. Bishop},
journal= {arXiv preprint arXiv:cond-mat/9805160},
year = {2009}
}
Comments
5 pages, 6 figures, to appear in Phys.Rev.B(Aug.15, 1998)