Novel electronic states close to Mott transition in low-dimensional and frustrated systems
Abstract
Recent studies demonstrated that there may appear different novel states in correlated systems close to localized-itinerant crossover. Especially favourable conditions for that are met in low-dimensional and in frustrated systems. In this paper I discuss on concrete examples some of such novel states. In particular, for some spinels and triangular systems there appears a "partial Mott transition", in which first some finite clusters (dimers, trimes, tetramers, heptamers) go over to the itinerant regime, and the real bulk Mott transition occurs only later. Also some other specific possibilities in this crossover regime are shortly discussed, such as spin-Peierls-Peierls transition in TiOCl, spontaneous charge disproportionation in some cases, etc.
Keywords
Cite
@article{arxiv.1102.5108,
title = {Novel electronic states close to Mott transition in low-dimensional and frustrated systems},
author = {D. I. Khomskii},
journal= {arXiv preprint arXiv:1102.5108},
year = {2015}
}
Comments
To be published in Journal of Physics - Condensed Matter, conference series