Effect of magnetic field on competition between superconductivity and charge order below the pseudogap state
Strongly Correlated Electrons
2013-07-26 v2 Superconductivity
Abstract
We theoretically investigate the T-B phase diagram of cuprates building on the SU(2) pseudogap order recently obtained from the spin-fermion model. At low temperatures, our analysis reveals an almost temperature-independent critical magnetic field B_{QDW} at which d-wave superconductivity switches to the quadrupole density wave (QDW) phase. For temperatures beyond a certain value of the order of the zero-field superconducting transition temperature T_c, the critical field B_{QDW}(T) sharply grows. We compare our results derived within the effective SU(2) non-linear sigma-model with the phase diagram recently obtained by sound velocity measurements by LeBoeuf et al. [Nat. Phys. 9, 79 (2013)].
Keywords
Cite
@article{arxiv.1306.6871,
title = {Effect of magnetic field on competition between superconductivity and charge order below the pseudogap state},
author = {H. Meier and M. Einenkel and C. Pépin and K. B. Efetov},
journal= {arXiv preprint arXiv:1306.6871},
year = {2013}
}
Comments
5 pages, 1 figure