The metal-insulator crossover of the in-plane resistivity upon temperature decrease, recently observed in several classes of cuprate superconductors, when a strong magnetic field suppresses the superconductivity, is explained using the U(1)×SU(2) Chern-Simons gauge field theory. The origin of this crossover is the same as that for a similar phenomenon observed in heavily underdoped cuprates without magnetic field. It is due to the interplay between the diffusive motion of the charge carriers and the ``peculiar'' localization effect due to short-range antiferromagnetic order. We also calculate the in-plane transverse magnetoresistance which is in a fairly good agreement with available experimental data.
@article{arxiv.cond-mat/0102422,
title = {Metal-insulator crossover in superconducting cuprates in strong magnetic fields},
author = {P. A. Marchetti and Zhao-bin Su and Lu Yu},
journal= {arXiv preprint arXiv:cond-mat/0102422},
year = {2009}
}
Comments
4 pages, 3 .eps figures, to appear in Physical Review Letters