138 citations · 639 across the 19 of their papers we have counts for
19 papers
Magnetic ground state and perturbations of the distorted kagome Ising metal TmAgGe
C. B. Larsen, D. G. Mazzone, N. Gauthier +7
We present the magnetic orders and excitations of the distorted kagome intermetallic magnet TmAgGe. Using neutron single crystal diffraction we identify the propagation vectors $\b…
Dipolar-octupolar correlations and hierarchy of exchange interactions in CeHfO
Victor Porée, Anish Bhardwaj, Elsa Lhotel +9
High-resolution neutron spectroscopy on CeHfO reveals a correlated state characterized by distinct dipolar scattering signals -- quasi-elastic and inelastic contributio…
Crystal-field states and defect levels in candidate quantum spin ice CeHfO
Victor Porée, Elsa Lhotel, Sylvain Petit +8
We report the synthesis of powder and single-crystal samples of the cerium pyrohafnate and their characterization using neutron diffraction, thermogravimetry and X-ray absorption s…
Connection between coherent phonons and electron-phonon coupling in Sb (111)
Shoya Sakamoto, Nicolas Gauthier, Patrick S. Kirchmann +2
We report time- and angle-resolved photoemission spectroscopy measurements on the Sb(111) surface. We observe band- and momentum-dependent binding-energy oscillations in the bulk a…
Expanding the momentum field of view in angle-resolved photoemission systems with hemispherical analyzers
Nicolas Gauthier, Jonathan A. Sobota, Heike Pfau +6
In photoelectron spectroscopy, the measured electron momentum range is intrinsically related to the excitation photon energy. Low photon energies eV are commonly encountered…
Anisotropic quasiparticle coherence in nematic BaFeAs studied with strain-dependent ARPES
H. Pfau, S. D. Chen, M. Hashimoto +7
The hallmark of nematic order in iron-based superconductors is a resistivity anisotropy but it is unclear to which extent quasiparticle dispersions, lifetimes and coherence contrib…
Neutron scattering by magnetic octupoles of a quantum liquid
Nicolas Gauthier, Victor Porée, Sylvain Petit +4
Neutron scattering is a powerful tool to study magnetic structures and dynamics, benefiting from a precisely established theoretical framework. The neutron dipole moment interacts…
Synthesis of epitaxial monolayer Janus SPtSe
R. Sant, M. Gay, A. Marty +10
Janus single-layer transition metal dichalcogenides, in which the two chalcogen layers have a different chemical nature, push chemical composition control beyond what is usually ac…
Quantum well states in fractured crystals of the heavy fermion material CeCoIn
Nicolas Gauthier, Jonathan A. Sobota, Makoto Hashimoto +6
Quantum well states appear in metallic thin films due to the confinement of the wave function by the film interfaces. Using angle-resolved photoemission spectroscopy, we unexpected…
Tuning time and energy resolution in time-resolved photoemission spectroscopy with nonlinear crystals
Alexandre Gauthier, Jonathan A. Sobota, Nicolas Gauthier +5
Time- and angle-resolved photoemission spectroscopy is a powerful probe of electronic band structures out of equilibrium. Tuning time and energy resolution to suit a particular sci…
A quantum liquid of magnetic octupoles on the pyrochlore lattice
Romain Sibille, Nicolas Gauthier, Elsa Lhotel +13
Spin liquids are highly correlated yet disordered states formed by the entanglement of magnetic dipoles. Theories typically define such states using gauge fields and deconfined…
Neutron scattering signatures of a quantum spin ice
Romain Sibille, Nicolas Gauthier, Han Yan +8
Quantum spin ice is an appealing proposal of a quantum spin liquid - systems where the magnetic moments of the constituent electron spins evade classical long-range order to form a…
Coexistence of magnetic fluctuations and long-range orders in the one-dimensional zigzag chains materials BaDyO and BaHoO
Bobby Prévost, Nicolas Gauthier, Vladimir Y. Pomjakushin +4
The compounds BaDyO and BaHoO are part of a family of frustrated systems exhibiting interesting properties, including spin liquid-type ground states, magnetic field…
Unconventional field induced phases in a quantum magnet formed by free radical tetramers
Andres Saul, Nicolas Gauthier, Reza Moosavi Askari +11
We report experimental and theoretical studies on the magnetic and thermodynamic properties of NIT-2Py, a free radical-based organic magnet. From magnetization and specific heat me…
Investigation of the commensurate magnetic structure in heavy fermion CePt2In7 using magnetic resonant X-ray diffraction
Nicolas Gauthier, Didier Wermeille, Nicola Casati +4
We investigated the magnetic structure of the heavy fermion compound CePtIn below K using magnetic resonant X-ray diffraction at ambient pressure. The magnet…
Experimental signatures of emergent quantum electrodynamics in PrHfO
Romain Sibille, Nicolas Gauthier, Han Yan +8
In a quantum spin liquid, the magnetic moments of the constituent electron spins evade classical long-range order to form an exotic state that is quantum entangled and coherent ove…
Spin Dynamics and Magnetoelectric Coupling Mechanism of Co4Nb2O9
Guochu Deng, Yiming Cao, Wei Ren +10
Neutron powder diffraction experiments reveal that Co4Nb2O9 forms a noncollinear in-plane magnetic structure with Co2+ moments lying in the ab plane. The spin-wave excitations of t…
Candidate quantum spin ice in the pyrochlore PrHfO
Romain Sibille, Elsa Lhotel, Monica Ciomaga Hatnean +5
We report the low temperature magnetic properties of the pyrochlore PrHfO. Polycrystalline and single-crystal samples are investigated using time-of-flight neutron spec…
Magnetic structure of the antiferromagnetic half-Heusler compound NdBiPt
R. A. Mueller, A. Desilets-Benoit, N. Gauthier +9
We present results of single crystal neutron diffraction experiments on the rare-earth, half-Heusler antiferromagnet (AFM) NdBiPt. This compound exhibits an AFM phase transition at…