Abstract
We theoretically investigate the - phase diagram of cuprates building on the pseudogap order recently obtained from the spin-fermion model. At low temperatures, our analysis reveals an almost temperature-independent critical magnetic field at which -wave superconductivity switches to a phase of charge order. For temperatures beyond a certain value of the order of the zero-field superconducting transition temperature , the critical field sharply grows. We compare our results derived within the effective nonlinear model with the phase diagram recently obtained by sound velocity measurements by LeBoeuf et al. [Nat. Phys. 9, 79 (2013)].
- Received 6 May 2013
DOI:https://doi.org/10.1103/PhysRevB.88.020506
©2013 American Physical Society