activity
20192023
most citedPhonons become chiral in the pseudogap phase of cuprates

165 citations · 525 across the 10 of their papers we have counts for

collaborators

10 papers

cond-mat.str-el2023★ 25 cited

Planar thermal Hall effect from phonons in a Kitaev candidate material

Lu Chen, Étienne Lefrançois, Ashvini Vallipuram +5

Kitaev materials are a promising platform for the realization of quantum spin liquid states. The thermal Hall effect has emerged as a potential probe of exotic excitations within s…

cond-mat.mtrl-sci2023★ 7 cited

Role of magnetic ions in the thermal Hall effect of the paramagnetic insulator TmVO

Ashvini Vallipuram, Lu Chen, Emma Campillo +9

In a growing number of materials, phonons have been found to generate a thermal Hall effect, but the underlying mechanism remains unclear. Inspired by previous studies that reveale…

cond-mat.str-el2023★ 19 cited

Impurity-induced phonon thermal Hall effect in the antiferromagnetic phase of Sr2IrO4

Amirreza Ataei, Gael Grissonnanche, Marie-Eve Boulanger +4

A thermal Hall effect is observed in an increasing number of insulators often attributed to phonons, but the underlying mechanism is in most cases unknown. A coupling of phonons to…

cond-mat.str-el2023★ 34 cited

Oscillations in the magnetothermal conductivity of -RuCl: Evidence of transition anomalies

Étienne Lefrançois, Jordan Baglo, Quentin Barthélemy +3

The 2D layered insulator -RuCl is a candidate material for a quantum spin-liquid state, which may be realized when a magnetic field suppresses the antiferromagnetic order pr…

cond-mat.str-el2022★ 11 cited

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

Q. Barthélemy, É. Lefrançois, J. Baglo +10

We report thermal conductivity measurements on single crystals of herbertsmithite, over a wide range of temperatures (0.05-120 K) in magnetic fields up to 15 T. We also report meas…

cond-mat.supr-con2021★ 22 cited

Thermal Hall conductivity of electron-doped cuprates

Marie-Eve Boulanger, Gaël Grissonnanche, Étienne Lefrançois +5

Measurements of the thermal Hall conductivity in hole-doped cuprates have shown that phonons acquire chirality in a magnetic field, both in the pseudogap phase and in the Mott insu…