Spin-charge gauge symmetry: A way to tackle HTS cuprates?
arXiv:cond-mat/0512607 · doi:10.1016/j.jpcs.2005.10.006
Abstract
We propose an explanation of several experimental features of transport phenomena in the normal state of high Tc cuprates in terms of a spin-charge gauge theory of the 2D t-J model. The calculated doping-temperature dependence for a number of physical quantities is found in qualitative agreement with data. In particular, we recover: in the ``pseudogap phase'' the metal-insulator crossover of the in-plane resistivity and of the NMR ``relaxation time'' and the insulating behavior of the out-of-plane resistivity; in the ``strange metal phase'' (at higher temperature or doping) the linear in T behavior of the above quantities; the appearance of maxima in the in-plane far-infrared conductivity in strongly underdoped and overdoped samples.
arXiv comment8 pages, 14 figures; to appear without figures in Journal of Physics and Chemistry of Solids
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