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
98 papers · 1 filter
Two-Peak Heat Capacity Accounts for Entropy and Ground State Access in the Dipole-Octupole Pyrochlore CeHfO
E. M. Smith, A. Fitterman, R. Schäfer +18
Magnetic heat capacity measurements of a high-quality single crystal of the dipole-octupole pyrochlore CeHfO down to a temperature of K are reported. These s…
A New Moiré Platform Based on M-Point Twisting
Dumitru Călugăru, Yi Jiang, Haoyu Hu +9
We introduce a new class of moiré systems and materials based on monolayers with triangular lattices and low-energy states at the M points of the Brillouin zone. These M-point moir…
Single Crystal Diffuse Neutron Scattering Study of the Dipole-Octupole Quantum Spin Ice Candidate CeZrO: No Apparent Octupolar Correlations Above K
E. M. Smith, R. Schäfer, J. Dudemaine +8
The insulating magnetic pyrochlore CeZrO has gained attention as a quantum spin ice candidate with dipole-octupole character arising from the crystal electric field gro…
Two -linear scattering rate regimes in the triangular lattice Hubbard model
Jérôme Fournier, Pierre-Olivier Downey, Charles-David Hébert +2
In recent years, the -linear scattering rate found at low temperatures, defining the strange metal phase of cuprates, has been a subject of interest. Since a wide range of mater…
Planar thermal Hall effect from phonons in cuprates
Lu Chen, Léna Le Roux, Gaël Grissonnanche +11
A surprising "planar" thermal Hall effect, whereby the field is parallel to the current, has recently been observed in a few magnetic insulators, and this has been attributed to ex…
Anisotropic Seebeck coefficient of in the incoherent regime
Ramzy Daou, Sylvie Hébert, Gaël Grissonnanche +6
Intuitive entropic interpretations of the thermoelectric effect in metals predict an isotropic Seebeck coefficient at high temperatures in the incoherent regime even in anisotropic…
SR Study of the Dipole-Octupole Quantum Spin Ice Candidate CeZrO
J. Beare, E. M. Smith, J. Dudemaine +11
The Ce pseudospin-1/2 degrees of freedom in CeZrO possess both dipolar and octupolar character which enables the possibility of novel quantum spin liquid ground…
Quantum Spin Ice Response to a Magnetic Field in the Dipole-Octupole Pyrochlore CeZrO
E. M. Smith, J. Dudemaine, B. Placke +17
We report new heat capacity measurements on single crystal CeZrO down to 0.1 K in a magnetic field along the direction. These new measurements s…
Nonlocal corrections to dynamical mean-field theory from the two-particle self-consistent method
N. Martin, C. Gauvin-Ndiaye, A. -M. S. Tremblay
Theoretical methods that are accurate for both short-distance observables and long-wavelength collective modes are still being developed for the Hubbard model. Here, we benchmark a…
Large Phonon Thermal Hall Conductivity in a Simple Antiferromagnetic Insulator
Lu Chen, Marie-Eve Boulanger, Zhi-Cheng Wang +2
Phonons are known to generate a thermal Hall effect in certain insulators, including oxides with rare-earth impurities, quantum paraelectrics, multiferroic materials and cuprate Mo…
Nonadiabatic Fluctuations and the Charge-Density-Wave Transition in One-Dimensional Electron-Phonon Systems: a Dynamic Self-Consistent
Alain M. Dikande, C. Bourbonnais
The Peierls instability in one-dimensional electron-phonon systems is known to be qualitatively well described by the Mean-Field theory, however the related self-consistent problem…
Non-Fermi liquid phase and linear-in-temperature scattering rate in overdoped two dimensional Hubbard model
Wei Wu, Xiang Wang, A. -M. S. Tremblay
Understanding electronic properties that violate the Landau Fermi liquid paradigm in cuprate superconductors remains a major challenge in condensed matter physics. The strange meta…
Theory of phonon instabilities in Weyl semimetals at high magnetic fields
Sarbajaya Kundu, Claude Bourbonnais, Ion Garate
The behavior of three-dimensional (3D) semimetals under strong magnetic fields is a topic of recurring interest in condensed matter physics. Recently, the advent of Weyl and Dirac…
The case for a U(1) Quantum Spin Liquid Ground State in the Dipole-Octupole Pyrochlore CeZrO
E. M. Smith, O. Benton, D. R. Yahne +20
The Ce pseudospin- degrees of freedom in the pyrochlore magnet CeZrO are known to possess dipole-octupole (DO) character, making it a candidate for…
Phonon helicity induced by electronic Berry curvature in Dirac materials
Lun-Hui Hu, Jiabin Yu, Ion Garate +1
In two-dimensional insulators with time-reversal (TR) symmetry, a nonzero local Berry curvature of low-energy massive Dirac fermions can give rise to nontrivial spin and charge res…
Cornering the universal shape of fluctuations
Benoit Estienne, Jean-Marie Stéphan, William Witczak-Krempa
Understanding the fluctuations of observables is one of the main goals in science, be it theoretical or experimental, quantum or classical. We investigate such fluctuations when on…
Modeling multiorbital effects in Sr2IrO4 under strain and a Zeeman field
Lena Engström, T. Pereg-Barnea, William Witczak-Krempa
We present a comprehensive study of a three-orbital lattice model suitable for the layered iridate Sr2IrO4. Our analysis includes various on-site interactions (including Hubbard an…
Accelerated impurity solver for DMFT and its diagrammatic extensions
Corey Melnick, Patrick Sémon, Kwangmin Yu +3
We present ComCTQMC, a GPU accelerated quantum impurity solver. It uses the continuous-time quantum Monte Carlo (CTQMC) algorithm wherein the partition function is expanded in term…
Geometric entanglement in integer quantum Hall states
Benoit Sirois, Lucie Maude Fournier, Julien Leduc +1
We study the quantum entanglement structure of integer quantum Hall states via the reduced density matrix of spatial subregions. In particular, we examine the eigenstates, spectrum…
Interaction and temperature effects on the magneto-optical conductivity of Weyl liquids
S. Acheche, R. Nourafkan, J. Padayasi +2
Negative magnetoresistance is one of the manifestations of the chiral anomaly in Weyl semimetals. The magneto-optical conductivity also shows transitions between Landau levels that…
Many-body recombination in insulating cuprates
Derek G. Sahota, Ruixing Liang, M. Dion +4
We study the pump-probe response of three insulating cuprates and develop a model for its recombination kinetics. The dependence on time, fluence, and both pump and probe photon en…
Geometric entanglement in integer quantum Hall states with boundaries
Pierre-Gabriel Rozon, Pierre-Alexandre Bolteau, William Witczak-Krempa
Boundaries constitute a rich playground for quantum many-body systems because they can lead to novel degrees of freedom such as protected boundary states in topological phases. Her…
Seebeck coefficient in low-dimensional fluctuating charge-density-wave systems
M. Mbodji, C. Bourbonnais
We study the role of charge density-wave fluctuations on the temperature dependence of Seebeck coefficient in quasi-one dimensional conductors with a Peierls instability. The descr…
Relating bulk to boundary entanglement
Clément Berthiere, William Witczak-Krempa
Quantum many-body systems have a rich structure in the presence of boundaries. We study the groundstates of conformal field theories (CFTs) and Lifshitz field theories in the prese…