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Persistent short-range charge correlations revealed by ultrafast melting of electronic order in YBaCuO
C. Seo, L. Shen, A. N. Petsch +18
Charge density waves (CDW) are ubiquitous in the complex phase diagram of cuprate superconductors and exhibit both short- and long-range correlations. Using time-resolved resonant…
Thermal Hall conductivity in the strongest cuprate superconductor: Estimate of the mean free path in the trilayer cuprate HgBaCaCuO
Munkhtuguldur Altangerel, Quentin Barthélemy, Étienne Lefrançois +12
The thermal Hall conductivity of the trilayer cuprate HgBaCaCuO (Hg1223) - the superconductor with the highest critical temperature at ambient pressure -…
Signatures of two gaps in the spin susceptibility of a cuprate superconductor
R. Zhou, I. Vinograd, M. Hirata +10
A major obstacle to understanding high-Tc cuprates is that superconductivity precludes observing normal-state properties at low temperatures. One prime example is the normal-state…
A multi-component Fermi surface in the vortex state of an underdoped high-Tc superconductor
Suchitra E. Sebastian, N. Harrison, E. Palm +6
In order to understand the origin of superconductivity, it is crucial to ascertain the nature and origin of the primary carriers available to participate in pairing. Recent quantum…
NMR study of charge density waves under hydrostatic pressure in YBa2Cu3Oy
I. Vinograd, R. Zhou, H. Mayaffre +5
The effect of hydrostatic pressure (P) on charge density waves (CDW) in YBa2Cu3Oy has recently been controversial. Using NMR, we find that both the short-range CDW in the normal st…
Unusual interplay between superconductivity and field-induced charge order in YBa2Cu3Oy
J. Kacmarcik, I. Vinograd, B. Michon +12
We present a detailed study of the temperature (T) and magnetic field (H) dependence of the electronic density of states (DOS) at the Fermi level, as deduced from specific heat and…
Anisotropy of the Seebeck Coefficient in the Cuprate Superconductor YBaCuO: Fermi-Surface Reconstruction by Bidirectional Charge Order
O. Cyr-Choinière, S. Badoux, G. Grissonnanche +11
The Seebeck coefficient of the cuprate YBaCuO was measured in magnetic fields large enough to suppress superconductivity, at hole dopings and $p =…
Thermal Conductivity of the Iron-Based Superconductor FeSe : Nodeless Gap with Strong Two-Band Character
P. Bourgeois-Hope, S. Chi, D. A. Bonn +6
The thermal conductivity of the iron-based superconductor FeSe was measured at temperatures down to 50 mK in magnetic fields up to 17 T. In zero magnetic field, the electronic resi…
Two types of nematicity in the phase diagram of the cuprate superconductor YBaCuO
O. Cyr-Choinière, G. Grissonnanche, S. Badoux +6
Nematicity has emerged as a key feature of cuprate superconductors, but its link to other fundamental properties such as superconductivity, charge order and the pseudogap remains u…
Wiedemann-Franz law in the underdoped cuprate superconductor YBa2Cu3Oy
G. Grissonnanche, F. Laliberte, S. Dufour-Beausejour +16
The recent detection of charge-density modulations in YBa2Cu3Oy and other cuprate superconductors raises new questions about the normal state of underdoped cuprates. In one class o…
Sensitivity of to pressure and magnetic field in the cuprate superconductor YBaCuO: evidence of charge order suppression by pressure
O. Cyr-Choinière, D. LeBoeuf, S. Badoux +7
Cuprate superconductors have a universal tendency to form charge density-wave (CDW) order which competes with superconductivity and is strongest at a doping . Here w…
Quasiparticle mass enhancement approaching optimal doping in a high-Tc superconductor
B. J. Ramshaw, S. E. Sebastian, R. D. McDonald +8
In the quest for superconductors with high transition temperatures (Ts), one emerging motif is that unconventional superconductivity is enhanced by fluctuations of a b…
Evidence for a small hole pocket in the Fermi surface of underdoped YBa2Cu3Oy
N. Doiron-Leyraud, S. Badoux, S. Rene de Cotret +13
The Fermi surface of a metal is the fundamental basis from which its properties can be understood. In underdoped cuprate superconductors, the Fermi surface undergoes a reconstructi…
Incipient charge order observed by NMR in the normal state of YBa2Cu3Oy
T. Wu, H. Mayaffre, S. Krämer +6
The pseudogap regime of high-temperature cuprates harbours diverse manifestations of electronic ordering whose exact nature and universality remain debated. Here, we show that the…
Direct measurement of the upper critical field in a cuprate superconductor
G. Grissonnanche, O. Cyr-Choiniere, F. Laliberte +20
The upper critical field Hc2 is a fundamental measure of the pairing strength, yet there is no agreement on its magnitude and doping dependence in cuprate superconductors. We have…
Thermodynamic phase diagram of static charge order in underdoped YBCO
David LeBoeuf, S. Krämer, W. N. Hardy +3
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 cuprat…
Direct observation of competition between superconductivity and charge density wave order in YBa2Cu3Oy
J. Chang, E. Blackburn, A. T. Holmes +10
Superconductivity often emerges in the proximity of, or in competition with, symmetry breaking ground states such as antiferromagnetism or charge density waves (CDW)1-5. A number o…
Lifshitz critical point in the cuprate superconductor YBa2Cu3Oy from high-field Hall effect measurements
David LeBoeuf, Nicolas Doiron-Leyraud, B. Vignolle +14
The Hall coefficient R_H of the cuprate superconductor YBa2Cu3Oy was measured in magnetic fields up to 60 T for a hole concentration p from 0.078 to 0.152, in the underdoped regime…