[HTML][HTML] A global inversion-symmetry-broken phase inside the pseudogap region of YBa2Cu3Oy

L Zhao, CA Belvin, R Liang, DA Bonn, WN Hardy… - Nature Physics, 2017 - nature.com
The phase diagram of cuprate high-temperature superconductors features an enigmatic
pseudogap region that is characterized by a partial suppression of low-energy electronic …

[HTML][HTML] Thermodynamic evidence for a nematic phase transition at the onset of the pseudogap in YBa2Cu3Oy

Y Sato, S Kasahara, H Murayama, Y Kasahara… - Nature Physics, 2017 - nature.com
A long-standing controversial issue in the quest to understand the superconductivity in
cuprates is the nature of the enigmatic pseudogap region of the phase diagram. Especially …

Discovery of slow magnetic fluctuations and critical slowing down in the pseudogap phase of YBa2Cu3Oy

J Zhang, Z Ding, C Tan, K Huang, OO Bernal… - Science …, 2018 - science.org
The origin of the pseudogap region below a temperature T* is at the heart of the mysteries of
cuprate high-temperature superconductors. Unusual properties of the pseudogap phase …

Angle-resolved phase-sensitive determination of the in-plane gap symmetry in YBa2Cu3O7−δ

JR Kirtley, CC Tsuei, Ariando, CJM Verwijs… - Nature physics, 2006 - nature.com
Understanding the nature of the ground state and its low-lying excitations in the copper
oxide superconductors is a prerequisite for determining the origin of high-temperature …

Magnetic Order in the Pseudogap Phase of High- Superconductors

B Fauqué, Y Sidis, V Hinkov, S Pailhes, CT Lin… - Physical Review Letters, 2006 - APS
One of the leading issues in high-TC superconductors is the origin of the pseudogap phase
in underdoped cuprates. Using polarized elastic neutron diffraction, we identify a novel …

[HTML][HTML] Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3O6.67

J Chang, E Blackburn, AT Holmes, NB Christensen… - Nature Physics, 2012 - nature.com
Superconductivity often emerges in the proximity of, or in competition with, symmetry-
breaking ground states such as antiferromagnetism or charge density waves,,,,(CDW). A …

[HTML][HTML] Thermodynamic phase diagram of static charge order in underdoped YBa2Cu3Oy

D LeBoeuf, S Krämer, WN Hardy, R Liang, DA Bonn… - Nature Physics, 2013 - nature.com
The interplay between superconductivity and any other competing order is an essential part
of the long-standing debate on the origin of high-temperature superconductivity in cuprate …

Broken rotational symmetry in the pseudogap phase of a high-Tc superconductor

R Daou, J Chang, D LeBoeuf, O Cyr-Choiniere… - Nature, 2010 - nature.com
The nature of the pseudogap phase is a central problem in the effort to understand the high-
transition-temperature (high-T c) copper oxide superconductors. A fundamental question is …

Quantum oscillations and the Fermi surface in an underdoped high-Tc superconductor

N Doiron-Leyraud, C Proust, D LeBoeuf, J Levallois… - Nature, 2007 - nature.com
Despite twenty years of research, the phase diagram of high-transition-temperature
superconductors remains enigmatic,. A central issue is the origin of the differences in the …

Competing order, Fermi surface reconstruction, and quantum oscillations in underdoped high-temperature superconductors

I Dimov, P Goswami, X Jia, S Chakravarty - Physical Review B—Condensed …, 2008 - APS
We consider incommensurate order parameters for electrons on a square lattice which
reduce to d-density wave order when the ordering wave vector Q is close to Q 0=(π/a, π/a), a …