138 citations · 879 across the 27 of their papers we have counts for
27 papers
Coherent spin waves in a maximal entropy phase
Arnau Romaguera, Eugenio Paris, Elizabeth Skoropata +24
In solids, disorder is conventionally regarded as detrimental to coherence. It typically localizes and dampens collective excitations, as exemplified by Anderson localization or th…
The magnetic structure of CeTiBi and its relation to current-induced magnetization
Nicolas Gauthier, Romain Sibille, Vladimir Pomjakushin +5
The control of magnetization using electric fields has been extensively studied in magnetoelectric multiferroic insulator materials. Changes in magnetization in bulk metals caused…
Thermodynamics of the dipole-octupole pyrochlore magnet CeHfO in applied magnetic fields
Anish Bhardwaj, Victor Porée, Han Yan +7
The recently discovered dipole-octupole pyrochlore magnet CeHfO is a promising three-dimensional quantum spin liquid candidate which shows no signs of ordering at low t…
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…
Fractional matter coupled to the emergent gauge field in a quantum spin ice
Victor Porée, Han Yan, Félix Desrochers +7
Electronic spins can form long-range entangled phases of condensed matter named quantum spin liquids. Their existence is conceptualized in models of two- or three-dimensional frust…
Tetrahedral triple-Q magnetic ordering and large spontaneous Hall conductivity in the metallic triangular antiferromagnet Co1/3TaS2
Pyeongjae Park, Woonghee Cho, Chaebin Kim +14
The triangular lattice antiferromagnet (TLAF) has been the standard paradigm of frustrated magnetism for several decades. The most common magnetic ordering in insulating TLAFs is t…
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…
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…
Ferrimagnetic 120 magnetic structure in Cu2OSO4
Virgile Yves Favre, Gregory S. Tucker, Clemens Ritter +10
We report magnetic properties of a 3d (Cu) magnetic insulator Cu2OSO4 measured on both powder and single crystal. The magnetic atoms of this compound form layers, whose…
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…
Evolution of Magnetic Order from the Localized to the Itinerant Limit
D. G. Mazzone, N. Gauthier, D. T. Maimone +10
Quantum materials that feature magnetic long-range order often reveal complex phase diagrams when localized electrons become mobile. In many materials magnetism is rapidly suppress…
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…
Field dependence of the magnetic correlations of the frustrated magnet SrDyO
N. Gauthier, A. Fennell, B. Prévost +7
The frustrated magnet SrDyO exhibits a field-induced phase with a magnetization plateau at of the saturation value for magnetic fields applied along the -axis. We…
Absence of long range order in the frustrated magnet SrDyO due to trapped defects from a dimensionality crossover
N. Gauthier, A. Fennell, B. Prévost +12
Magnetic frustration and low dimensionality can prevent long range magnetic order and lead to exotic correlated ground states. SrDyO consists of magnetic Dy ions for…
Single crystal growth, structure and magnetic properties of Pr2Hf2O7 pyrochlore
Monica Ciomaga Hatnean, Romain Sibille, Martin R. Lees +4
Large single crystals of the pyrochlore Pr2Hf2O7 have been successfully grown by the floating zone technique using an optical furnace equipped with high power Xenon arc lamps. Stru…
Coulomb spin liquid in anion-disordered pyrochlore TbHfO
Romain Sibille, Elsa Lhotel, Monica Ciomaga Hatnean +16
The charge ordered structure of ions and vacancies characterizing rare-earth pyrochlore oxides serves as a model for the study of geometrically frustrated magnetism. The organizati…
Stress-induced magnetic domain selection reveals a conical ground state for the multiferroic phase of Mn2GeO4
J. S. White, T. Honda, R. Sibille +6
At ambient pressure (P) and below 5.5 K, olivine-type Mn2GeO4 hosts a multiferroic (MF) phase where a multicomponent, i.e., multi-k magnetic order generates spontaneous ferromagnet…
Fully gapped superconductivity in the topological superconductor beta-PdBi2
P. K. Biswas, D. G. Mazzone, R. Sibille +8
The recent discovery of the topologically protected surface states in the beta-phase of PdBi2 has reignited the research interest in this class of superconductors. Here, we show re…
Spiral spin-liquid and the emergence of a vortex-like state in MnScS
Shang Gao, Oksana Zaharko, Vladmir Tsurkan +10
Spirals and helices are common motifs of long-range order in magnetic solids, and they may also be organized into more complex emergent structures such as magnetic skyrmions and vo…
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…
Complete decoupling of magnetic order and superconductivity in a conventional superconductor
D. G. Mazzone, R. Sibille, M. Bartkowiak +7
Superconductivity and magnetic order strongly compete in many conventional superconductors, at least partly because both tend to gap the Fermi surface. In magnetically-ordered conv…
Crystal structure and phonon softening in Ca3Ir4Sn13
D. G. Mazzone, S. Gerber, J. L. Gavilano +14
We investigated the crystal structure and lattice excitations of the ternary intermetallic stannide Ca3Ir4Sn13 using neutron and x-ray scattering techniques. For T > T* ~ 38 K the…
Candidate Quantum Spin Liquid in the Ce\textsuperscript{3+} Pyrochlore Stannate CeSnO
Romain Sibille, Elsa Lhotel, Vladimir Pomjakushin +3
We report the low temperature magnetic properties of CeSnO, a rare-earth pyrochlore. Our susceptibility and magnetization measurements show that due to the thermal isol…