3.4k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Université de SherbrookeCA163 papers
- Université de MontréalCA92 papers
- Canadian Institute for Advanced ResearchCA56 papers
- Institut quantiqueCA21 papers
- Centre National de la Recherche ScientifiqueFR17 papers
- Rutgers, The State University of New JerseyUS13 papers
- Imperial College LondonGB12 papers
- National Research Council CanadaCA11 papers
- Polytechnique MontréalCA11 papers
- Donostia International Physics CenterES10 papers
- Laboratoire de physique des SolidesFR10 papers
- University of British ColumbiaCA10 papers
38 papers · 1 filter
Fermi surface and topology of multiband superconductor BeAu
Riccardo Vocaturo, Klaus Koepernik, Dániel Varjas +3
The chiral material BeAu was recently identified as a multiband type-I superconductor with a critical temperature of 3.2 K. As a member of the B20 crystal family (space group $P2_1…
Soft Mode Origin of Charge Ordering in Superconducting Kagome CsVSb
Philippa Helen McGuinness, Fabian Henssler, Manex Alkorta +12
Charge-density-wave (CDW) order and superconductivity coexist in the kagome metals AVSb (A=K, Cs, Rb), raising fundamental questions about the mechanisms driving their inte…
Superconducting and spin-density wave phases probed by scanning tunneling spectroscopy in the organic conductor
Mohammadmehdi Torkzadeh, Pascale Senzier, Claude Bourbonnais +9
By scanning tunneling microscopy (STM) we have probed the local quasi-particle density of states (DOS) of the Bechgaard salt organic superconductor in…
Quasi one-dimensional organic conductors: from Fröhlich conductivity and Peierls insulating state to magnetically-mediated superconductivity, a retrospective
Denis Jerome, Claude Bourbonnais
It is indisputable that the search for high-temperature superconductivity has stimulated the work on low-dimensional organic conductors at its beginning. Since the discovery of tru…
Strain-induced superconductivity in Sr2IrO4
Lena Engström, Chia-Chuan Liu, William Witczak-Krempa +1
Multi-orbital quantum materials with strong interactions can host a variety of novel phases. In this work we study the possibility of interaction-driven superconductivity in the ir…
Oxygen hole content, charge-transfer gap, covalency, and cuprate superconductivity
N. Kowalski, S. S. Dash, D. Sénéchal +1
Experiments have shown that the families of cuprate superconductors that have the largest transition temperature at optimal doping also have the largest oxygen hole content at that…
Topological Josephson Bifurcation Amplifier: Semiclassical theory
Samuel Boutin, Pedro L. S. Lopes, Anqi Mu +2
Amplifiers based on Josephson junctions allow for a fast and noninvasive readout of superconducting qubits. Motivated by the ongoing progress toward the realization of fault-tolera…
Superconductivity from Coulomb repulsion in three-dimensional quadratic band touching Luttinger semimetals
Serguei Tchoumakov, Louis J. Godbout, William Witczak-Krempa
We study superconductivity driven by screened Coulomb repulsion in three-dimensional Luttinger semimetals with a quadratic band touching and strong spin-orbit coupling. In these se…
Superconducting Symmetries of SrRuO from First-Principles Electronic Structure
Olivier Gingras, Reza Nourafkan, André-Marie S. Tremblay +1
Although correlated electronic-structure calculations explain very well the normal state of SrRuO, its superconducting symmetry is still unknown. Here we construct the spin…
Nodal versus nodeless superconductivity in iso-electronic LiFeP and LiFeAs
R. Nourafkan
Nodal superconductivity is observed in LiFeP while its counterpart LiFeAs with similar topology and orbital content of the Fermi surfaces is a nodeless superconductor. We explain t…
Effect of nonsymmorphic space group on correlation functions in iron-based superconductors
R. Nourafkan, A. -M. S. Tremblay
The orbital basis is natural when one needs to calculate the effect of local interactions or to unravel the role of orbital physics in the response to external probes. In systems w…
Change of carrier density at the pseudogap critical point of a cuprate superconductor
S. Badoux, W. Tabis, F. Laliberté +10
The pseudogap is a central puzzle of cuprate superconductors. Its connection to the Mott insulator at low doping remains ambiguous and its relation to the charge order that rec…
Maximum Entropy Analytic Continuation for Spectral Functions with Non-Positive Spectral Weight
A. Reymbaut, D. Bergeron, A. -M. S. Tremblay
Information about the pairing mechanism for superconductivity is contained in the spectral weight for the anomalous (Gorkov) Green function. In the most general case, this spectral…
Switching of magnetic domains reveals evidence for spatially inhomogeneous superconductivity
Simon Gerber, Marek Bartkowiak, Jorge L. Gavilano +8
The interplay of magnetic and charge fluctuations can lead to quantum phases with exceptional electronic properties. A case in point is magnetically-driven superconductivity, where…
Resilience of d-wave superconductivity to nearest-neighbor repulsion
D. Sénéchal, A. Day, V. Bouliane +1
Many theoretical approaches find d-wave superconductivity in the prototypical one-band Hubbard model for high-temperature superconductors. At strong-coupling (U > W, where U is the…
Vortex Lattice Melting and Hc2 in underdoped YBa2Cu3Oy
B. J. Ramshaw, James Day, Baptiste Vignolle +7
Vortices in a type-II superconductor form a lattice structure that melts when the thermal displacement of the vortices is an appreciable fraction of the distance between vortices.…
On the Origin of the Anomalous Upper Critical Field in Quasi-One-Dimensional Superconductors
Yuki Fuseya, Claude Bourbonnais, Kazumasa Miyake
Upper critical field, H_c2, in quasi-1D superconductors is investigated by the weak coupling renormalization group technique. It is shown that H_c2 greatly exceeds not only the Pau…
Vortex lattice studies in CeCoIn5 with H perpendicular to c
P. Das, J. S. White, A. T. Holmes +10
We present small angle neutron scattering studies of the vortex lattice (VL) in CeCoIn5 with magnetic fields applied parallel (H) to the antinodal [100] and nodal [110] directions.…
DFT+U study of magnetic order in doped LaCuO crystals
Simon Pesant, Michel Côté
This article presents the results of several magnetic phases of doped LaSrCuO using density-functional theory with an added Hubbard term (DFT+U). Doping factors fro…
Scattering and Pairing in Cuprate Superconductors
Louis Taillefer
The origin of the exceptionally strong superconductivity of cuprates remains a subject of debate after more than two decades of investigation. Here we follow a new lead: The onset…
Superconductivity close to the charge-density-wave instability
H. Bakrim, C. Bourbonnais
We use the weak coupling renormalization group method to examine the interplay between charge-density-wave and s-wave superconducting orders in a quasi-one-dimensional model of ele…
Observations of Pauli Paramagnetic Effects on the Flux Line Lattice in CeCoIn5
J. S. White, P. Das, M. R. Eskildsen +12
From small-angle neutron scattering studies of the flux line lattice (FLL) in CeCoIn5, with magnetic field applied parallel to the crystal c-axis, we obtain the field- and temperat…
Progress and perspectives on the electron-doped cuprates
N. P. Armitage, P. Fournier, R. L. Greene
Although the vast majority of high- cuprate superconductors are hole-doped, a small family of electron-doped compounds exists. Under investigated until recently, there has bee…
Mixed pairing symmetry in κ-(BEDT-TTF)_2 X organic superconductors from ultrasonic velocity measurements
Maxime Dion, David Fournier, Mario Poirier +2
Discontinuities in elastic constants are detected at the superconducting transition of layered organic conductors κ-(BEDT-TTF)_{2}X by longitudinal and transverse ultrasonic veloci…