The origin of strange metallic phase is shown to exist due to these two conditions---(i) the electrons are strongly interacting such that there are no band and Mott-Hubbard gaps, and (ii) the electronic energy levels are crossed in such a way that there is an electronic energy gap between two energy levels associated to two different wave functions. The theory is also exploited to explain (i) the upward- and downward-shifts in the T-linear resistivity curves, and (ii) the spectral weight transfer observed in the soft X-ray absorption spectroscopic measurements of the La-Sr-Cu-O Mott insulator.
@article{arxiv.1107.4585,
title = {Origin of strange metallic phase in cuprate superconductors},
author = {Andrew Das Arulsamy},
journal= {arXiv preprint arXiv:1107.4585},
year = {2014}
}