42 citations · 56 across the 2 of their papers we have counts for
4 papers · 1 filter
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…
Exact summation of vertex corrections to the penetration depth in d-wave superconductors
A. Iyengar, M. Franz
A variety of experiments suggest that in the cuprates, the low-energy superconducting quasiparticles undergo forward scattering from extended impurity potentials. We argue that whe…
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…
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…