Benoît Fauqué

Phonon thermal Hall effect in quartz and its absence in silica

Yu Ling, Benoît Fauqué, Kamran Behnia

The observation of a misalignment between the applied heat flux and the measured temperature gradient in insulating solids induced by magnetic field has become a subject of experimental investigation, theoretical speculation, and unsettled controversy. To identify the origin of this phonon thermal …

fr, cn (code pays fourni par la source)

Electron-electron and electron-phonon collision cross sections in CsV 3 Sb 5

Anonymous, Andrea Salinas, Stephen D. Wilson, Benoît Fauqué et autres

AV3Sb5 (A=K, Rb, Cs) are kagome metals and superconductors, attracting much recent attention as nexus of multiple quantum states. Here, through a systematic study of electric and thermal transport of CsV3Sb5, we identify it as a metallic Fermi liquid with moderate electronic …

fr, us (code pays fourni par la source)

Air-Stable Subsurface Two-Dimensional Hole Gas with Strong Spin–Orbit Interaction in Single Layer Pt on Ge

Dan Wang, Thomas Pierron, Etienne Barre, Stéphane Pons et autres

Two-dimensional hole gases (2DHGs) offer enhanced spin-orbit coupling and correlations, making them attractive for spintronic and quantum devices. Yet, most realizations require complex epitaxial structures and protective encapsulation, limiting their applicability. Here, we show that a stable 2DHG emerges in Ge(111) upon …

fr (code pays fourni par la source)

Hydrodynamics of the viscous electron fluid in cadmium

Xiaodong Guo, Xiaokang Li, Benoît Fauqué, Alaska Subedi et autres

Thanks to electron-electron ($e$-$e$) collisions conserving momentum, metallic electron fluids are viscous. Yet, this viscosity is rarely detectable in bulk transport. Here, we report on the canonical realization of the Gurzhi effect in an elemental three-dimensional metal: cadmium. Using focused ion beam …

Hydrodynamics of the viscous electron fluid in cadmium

Xiaodong Guo, Xiaokang Li, Benoît Fauqué, Alaska Subedi et autres

Thanks to electron-electron ($e$-$e$) collisions conserving momentum, metallic electron fluids are viscous. Yet, this viscosity is rarely detectable in bulk transport. Here, we report on the canonical realization of the Gurzhi effect in an elemental three-dimensional metal: cadmium. Using focused ion beam …

fr, cn (code pays fourni par la source)

Phonon Thermal Hall Effect in quartz and its absence in silica

Yu Ling, Benoît Fauqué, Kamran Behnia

The observation of a misalignment between the applied heat flux and the measured temperature gradient in insulating solids induced by magnetic field has become a subject of experimental investigation, theoretical speculation, and unsettled controversy. To identify the origin of this phonon thermal …

Phonon Thermal Hall Effect in quartz and its absence in silica

Yu Ling, Benoît Fauqué, Kamran Behnia

The observation of a misalignment between the applied heat flux and the measured temperature gradient in insulating solids induced by magnetic field has become a subject of experimental investigation, theoretical speculation, and unsettled controversy. To identify the origin of this phonon thermal …

fr, cn, us (code pays fourni par la source)

Air-stable subsurface two-dimensional hole gas with strong spin-orbit interaction in single layer Pt on Ge

Dan Wang, Thomas Perron, Etienne Barre, Stéphane Pons et autres

Two-dimensional hole gases (2DHGs) offer enhanced spin-orbit coupling and correlations, making them attractive for spintronic and quantum devices. Yet, most realizations require complex epitaxial structures and protective encapsulation, limiting their applicability.Here we show that a stable 2DHG emerges in Ge( 111) upon …

fr (code pays fourni par la source)

T -square electric resistivity and its thermal counterpart in RuO 2

Florent Pawula, Ramzy Daou, Benoît Fauqué, Kamran Behnia

We present a study of low-temperature electric and thermal transport in ${\mathrm{RuO}}_{2}$, a metallic oxide which has attracted much recent attention. Careful scrutiny of electric resistivity reveals a quadratic temperature dependence below $\ensuremath{\sim}20$ K undetected in previous studies of electronic transport in …

fr, cn (code pays fourni par la source)

<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>T</mml:mi> </mml:mrow> </mml:math> -square electric resistivity and its thermal counterpart in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>RuO</mml:mi> <mml:mn>2</mml:mn> </mml:msub> </mml:math>

Yu Ling, Florent Pawula, Ramzy Daou, Benoît Fauqué et autres

We present a study of low-temperature electric and thermal transport in ${\mathrm{RuO}}_{2}$, a metallic oxide which has attracted much recent attention. Careful scrutiny of electric resistivity reveals a quadratic temperature dependence below $\ensuremath{\sim}20$ K undetected in previous studies of electronic transport in …

fr, cn (code pays fourni par la source)

Electron-electron and electron-phonon collision cross sections in CsV3Sb5

Charles Menil, Andrea Capa Salinas, Stephen D. Wilson, Benoît Fauqué et autres

AV3Sb5 (A=K, Rb, Cs) are kagome metals and superconductors, attracting much recent attention as nexus of multiple quantum states. Here, through a systematic study of electric and thermal transport of CsV3Sb5, we identify it as a metallic Fermi liquid with moderate electronic …

Incipient modulated phase in Sr$_{1-x}$Ca$_{x}$TiO$_3$

Benoît Fauqué, D. A. Chaney, P. Bourges, S. Raymond et autres

Nanometer-scale modulations can spontaneously emerge in complex materials when multiple degrees of freedom interact. Here we demonstrate that ferroelectric Sr$_{1-x}$Ca$_x$TiO$_3$ lies in close proximity to an incipient structurally modulated phase. Using inelastic neutron and X-ray scattering, we show that upon cooling, dipolar …