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15 papers
Thermal Hall conductivity in the cuprate Mott insulators NdCuO and SrCuOCl
Marie-Eve Boulanger, Gaël Grissonnanche, Sven Badoux +11
The heat carriers responsible for the unexpectedly large thermal Hall conductivity of the cuprate Mott insulator LaCuO were recently shown to be phonons. However, the mecha…
Fermi surface transformation at the pseudogap critical point of a cuprate superconductor
Yawen Fang, Gael Grissonnanche, Anaelle Legros +11
The nature of the pseudogap phase remains a major barrier to our understanding of cuprate high-temperature superconductivity. Whether or not this metallic phase is defined by any o…
Phonons become chiral in the pseudogap phase of cuprates
G. Grissonnanche, S. Thériault, A. Gourgout +11
The nature of the pseudogap phase of cuprates remains a major puzzle. One of its new signatures is a large negative thermal Hall conductivity , which appears for doping…
Ultrasound evidence for a two-component superconducting order parameter in SrRuO
S. Benhabib, C. Lupien, I. Paul +9
The quasi-2D metal SrRuO is one of the best characterized unconventional superconductors, yet the nature of its superconducting order parameter is still highly debated. Thi…
Field-angle dependence of sound velocity in the Weyl semimetal TaAs
F. Laliberté, F. Bélanger, N. L. Nair +5
The elastic modulus of a single crystal of the Weyl semimetal TaAs was investigated by measuring relative changes in the sound velocity under application of a magnetic fie…
Field-dependent heat transport in the Kondo insulator SmB6 : phonons scattered by magnetic impurities
M-E. Boulanger, F. Laliberté, M. Dion +12
The thermal conductivity of the Kondo insulator SmB was measured at low temperature, down to 70 mK, in magnetic fields up to 15 T, on single crystals grown using both the f…