Locating the Missing Superconducting Electrons in the Overdoped Cuprates

F Mahmood, X He, I Božović, NP Armitage - Physical review letters, 2019 - APS
Overdoped high-temperature cuprate superconductors have often been understood within
the standard BCS framework of superconductivity. However, measurements in a variety of …

Spectroscopic Fingerprint of Phase-Incoherent Superconductivity in the Underdoped Bi2Sr2CaCu2O8+δ

J Lee, K Fujita, AR Schmidt, CK Kim, H Eisaki… - Science, 2009 - science.org
A possible explanation for the existence of the cuprate “pseudogap” state is that it is a d-
wave superconductor without quantum phase rigidity. Transport and thermodynamic studies …

Green's function zeros in Fermi surface symmetric mass generation

DC Lu, M Zeng, YZ You - Physical Review B, 2023 - APS
The Fermi surface symmetric mass generation (SMG) is an intrinsically interaction-driven
mechanism that opens an excitation gap on the Fermi surface without invoking symmetry …

Spectroscopic Imaging Scanning Tunneling Microscopy Studies of Electronic Structure in the Superconducting and Pseudogap Phases of Cuprate High-Tc …

K Fujita, A R. Schmidt, EA Kim, M J. Lawler… - Journal of the Physical …, 2011 - journals.jps.jp
One of the key motivations for the development of atomically resolved spectroscopic imaging
scanning tunneling microscopy (SI-STM) has been to probe the electronic structure of …

Phase fluctuations in two-dimensional superconductors and pseudogap phenomenon

XC Wang, Y Qi - Physical Review B, 2023 - APS
We study the phase fluctuations in the normal state of generic two-dimensional
superconducting systems with s-wave pairing. The effect of phase fluctuations of the pairing …

Correlation between Superfluid Density and of Underdoped <?format ?>Near the Superconductor-Insulator Transition

Y Zuev, M Seog Kim, TR Lemberger - Physical review letters, 2005 - APS
We report measurements of the ab-plane superfluid density ns (magnetic penetration depth
λ) of heavily underdoped films of YBa 2 Cu 3 O 6+ x, with TC's from 6 to 50 K. We find the …

Leggett modes in iron-based superconductors as a probe of time-reversal symmetry breaking

M Marciani, L Fanfarillo, C Castellani, L Benfatto - Physical Review B …, 2013 - APS
Since their discovery, it has been suggested that pairing in pnictides can be mediated by
spin fluctuations between hole and electron bands. In this view, multiband superconductivity …

Conductivity of hard core bosons: A paradigm of a bad metal

NH Lindner, A Auerbach - Physical Review B—Condensed Matter and …, 2010 - APS
Two-dimensional hard core bosons suffer strong scattering in the high-temperature resistive
state at half filling. The dynamical conductivity σ (ω) is calculated using nonperturbative tools …

Superconducting fluctuations and charge-4 plaquette state at strong coupling

Q Qin, JJ Dong, Y Sheng, D Huang, Y Yang - Physical Review B, 2023 - APS
We apply the static auxiliary field Monte Carlo approach to study phase correlations of the
pairing fields in a model with spin-singlet pairing interaction. We find that the short-and long …

Variational Monte Carlo study of symmetric mass generation in a bilayer honeycomb lattice model

W Hou, YZ You - Physical Review B, 2023 - APS
We investigate a bilayer honeycomb lattice model of spin-1/2 fermions at half-filling with
local Heisenberg coupling of fermion spins across the two layers. Using variational Monte …