Patrick Bourgeois-Hope

Heat conduction in herbertsmithite: Field dependence at the onset of the quantum spin liquid regime

Quentin Barthélemy, Étienne Lefrançois, Jordan Baglo, Patrick Bourgeois-Hope et autres

Thermal conductivity and thermal Hall effect measurements in the quantum kagome antiferromagnet herbertsmithite reveal that there is no significant contribution to the heat conduction from mobile spin excitations. A clear field dependence of the thermal conductivity is discovered to onset at a …

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Thermal conductivity of the quantum spin liquid candidate EtMe 3 Sb[Pd(dmit) 2 ] 2 : No evidence of mobile gapless excitations

N. Doiron-Leyraud, Patrick Bourgeois-Hope, Francis Laliberté, Étienne Lefrançois et autres

Thermal conductivity of the quantum spin liquid candidate herbertsmithite

Patrick Bourgeois-Hope, Pierre Lefloïc, N. Doiron-Leyraud, Louis Taillefer et autres

Link between magnetism and resistivity upturn in cuprates: a thermal conductivity study of La$_{2-x}$Sr$_x$CuO$_4$

Patrick Bourgeois-Hope, S. Y. Li, F. Laliberté, S. Badoux et autres

A key unexplained feature of cuprate superconductors is the upturn in their normal state electrical resistivity $ρ(T)$ seen at low temperature inside the pseudogap phase. We examined this issue via measurements of the thermal conductivity $κ(T)$ down to 50 mK and in …

Link between magnetism and resistivity upturn in cuprates: a thermal conductivity study of La$_{2-x}$Sr$_x$CuO$_4$

Patrick Bourgeois-Hope, S. Y. Li, F. Laliberté, S. Badoux et autres

A key unexplained feature of cuprate superconductors is the upturn in their normal state electrical resistivity $\rho(T)$ seen at low temperature inside the pseudogap phase. We examined this issue via measurements of the thermal conductivity $\kappa(T)$ down to 50 mK and in …

Impact of spin-density-wave order on thermal transport in the cuprate superconductor LSCO

Patrick Bourgeois-Hope, Shiyan Li, N. Doiron-Leyraud, Louis Taillefer et autres

Pseudogap critical point inside the superconducting phase of cuprates

B. Michon, S. Li, Patrick Bourgeois-Hope, S. Badoux et autres

Vertical line nodes in the superconducting gap structure of Sr$_2$RuO$_4$

Louis Taillefer, Patrick Bourgeois-Hope, S. René de Cotret, G. Grissonnanche et autres

Thermal Conductivity of the Iron-Based Superconductor FeSe: Nodeless Gap with a Strong Two-Band Character

Patrick Bourgeois-Hope, Shun Chi, D. A. Bonn, R. Liang et autres

The thermal conductivity $\ensuremath{\kappa}$ of the iron-based superconductor FeSe was measured at temperatures down to 75 mK in magnetic fields up to 17 T. In a zero magnetic field, the electronic residual linear term in the $T=0\text{ }\text{ }\mathrm{K}$ limit, ${\ensuremath{\kappa}}_{0}/T$, is …

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Thermal Conductivity of the Iron-Based Superconductor FeSe : Nodeless Gap with Strong Two-Band Character

Patrick Bourgeois-Hope

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 residual linear term in the T = 0 limit, κ_0/T, is vanishingly small. …

Onset field for Fermi-surface reconstruction in the cuprate superconductor YBa 2 Cu 3 O y

G. Grissonnanche, F. Laliberté, Sophie Dufour-Beauséjour, Alexis Riopel et autres

Onset field for Fermi-surface reconstruction in the cuprate superconductor YBCO

G. Grissonnanche, F. Laliberté, Sophie Dufour-Beauséjour, Alexis Riopel et autres

Quantum oscillations and negative Hall and Seebeck coefficients at low temperature and high magnetic field have shown the Fermi surface of underdoped cuprates to contain a small closed electron pocket. It is thought to result from a reconstruction by charge order, but …