42 citations · 56 across the 2 of their papers we have counts for
5 papers
4D-XY quantum criticality in a doped Mott insulator
M. Franz, A. P. Iyengar
A new phenomenology is proposed for the superfluid density of strongly underdoped cuprate superconductors based on recent data for ultra-clean single crystals of YBCO. The data fea…
The pseudogap state in superconductors: Extended Hartree approach to time-dependent Ginzburg-Landau Theory
Jelena Stajic, Andrew Iyengar, Qijin Chen +1
It is well known that conventional pairing fluctuation theory at the Hartree level leads to a normal state pseudogap in the fermionic spectrum. Our goal is to extend this Hartree a…
Magnetic Field Effects in the Pseudogap Phase: A Precursor Superconductivity Scenario
Andrew P. Iyengar, Ying-Jer Kao, Qijin Chen +1
We demonstrate that the observed dependences of and on small magnetic fields can be readily understood in a precursor superconductivity approach to the pseudogap phase.…
Origin of the pseudogap phase: Precursor superconductivity versus a competing energy gap scenario
K. Levin, Qijin Chen, Ioan Kosztin +3
In the last few years evidence has been accumulating that there are a multiplicity of energy scales which characterize superconductivity in the underdoped cuprates. In contrast to…
Magnetic Field Effects in the Pseudogap Phase: A Competing Energy Gap Scenario for Precursor Superconductivity
Ying-Jer Kao, Andrew P. Iyengar, Qijin Chen +1
We study the sensitivity of T_c and T^* to low fields, H, within the pseudogap state using a BCS-based approach extended to arbitrary coupling. We find that T^* and T_c, which are…