Zobrazeno 1 - 10
of 402
pro vyhledávání: '"Petit Sylvain"'
Autor:
Bhardwaj, Anish, Porée, Victor, Yan, Han, Gauthier, Nicolas, Lhotel, Elsa, Petit, Sylvain, Quilliam, Jeffrey A., Nevidomskyy, Andriy H., Sibille, Romain, Changlani, Hitesh J.
The recently discovered dipole-octupole pyrochlore magnet Ce$_2$Hf$_2$O$_7$ is a promising three-dimensional quantum spin liquid candidate which shows no signs of ordering at low temperature. The low energy effective pseudospin-1/2 description in a m
Externí odkaz:
http://arxiv.org/abs/2402.08723
Autor:
Léger, Mélanie, Vayer, Florianne, Hatnean, Monica Ciomaga, Damay, Françoise, Decorse, Claudia, Berardan, David, Fåk, Björn, Zanotti, Jean-Marc, Berrod, Quentin, Embs, Jacques Ollivier Jan P., Fennell, Tom, Sheptyakov, Denis, Petit, Sylvain, Lhotel, Elsa
Publikováno v:
Phys. Rev. B 109, 224416 (2024)
We study the stability of the antiferromagnetic all-in--all-out state observed in dipolar-octupolar pyrochlores that have neodymium as the magnetic species. Different types of disorder are considered, either affecting the immediate environment of the
Externí odkaz:
http://arxiv.org/abs/2401.15027
Autor:
Porée, Victor, Bhardwaj, Anish, Lhotel, Elsa, Petit, Sylvain, Gauthier, Nicolas, Yan, Han, Pomjakushin, Vladimir, Ollivier, Jacques, Quilliam, Jeffrey A., Nevidomskyy, Andriy H., Changlani, Hitesh J., Sibille, Romain
We investigate the correlated state of Ce$_2$Hf$_2$O$_7$ using neutron scattering, finding signatures of correlations of both dipolar and octupolar character. A dipolar inelastic signal is also observed, as expected for spinons in a quantum spin ice
Externí odkaz:
http://arxiv.org/abs/2305.08261
Autor:
Porée, Victor, Yan, Han, Desrochers, Félix, Petit, Sylvain, Lhotel, Elsa, Appel, Markus, Ollivier, Jacques, Kim, Yong Baek, Nevidomskyy, Andriy H., Sibille, Romain
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 frustrated magnets that evade symmetry-breaking order down to zero temperat
Externí odkaz:
http://arxiv.org/abs/2304.05452
Autor:
Takayoshi, Shintaro, Faure, Quentin, Simonet, Virginie, Grenier, Béatrice, Petit, Sylvain, Ollivier, Jacques, Lejay, Pascal, Giamarchi, Thierry
Publikováno v:
Phys. Rev. Research 5, 023205 (2023)
By combining inelastic neutron scattering and numerical simulations, we study the quasi-one dimensional Ising-like quantum antiferromagnet BaCo$_{2}$V$_{2}$O$_{8}$ in a longitudinal magnetic field applied along the magnetic anisotropy axis, which is
Externí odkaz:
http://arxiv.org/abs/2302.03833
Autor:
Porée, Victor, Lhotel, Elsa, Petit, Sylvain, Krajewska, Aleksandra, Puphal, Pascal, Clark, Adam H., Pomjakushin, Vladimir, Walker, Helen C., Gauthier, Nicolas, Gawryluk, Dariusz J., Sibille, Romain
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 spectroscopy. We evaluate the amount of non-magnetic Ce$^{4+}$ defects
Externí odkaz:
http://arxiv.org/abs/2203.16295
Solitonic excitations in the Ising anisotropic chain BaCo2V2O8 under large transverse magnetic field
Autor:
Faure, Quentin, Takayoshi, Shintaro, Grenier, Béatrice, Petit, Sylvain, Raymond, Stéphane, Boehm, Martin, Lejay, Pascal, Giamarchi, Thierry, Simonet, Virginie
We study the dynamics of the quasi-one-dimensional Ising-Heisenberg antiferromagnet BaCo2V2O8 under a transverse magnetic field. Combining inelastic neutron scattering experiments and theoretical analyses by field theories and numerical simulations,
Externí odkaz:
http://arxiv.org/abs/2107.02487
Autor:
Gauthier, Nicolas, Porée, Victor, Petit, Sylvain, Pomjakushin, Vladimir, Lhotel, Elsa, Fennell, Tom, Sibille, Romain
Publikováno v:
Swiss Neutron News 56, 6-19 (2020)
Neutron scattering is a powerful tool to study magnetic structures and dynamics, benefiting from a precisely established theoretical framework. The neutron dipole moment interacts with electrons in materials via their magnetic field, which can have s
Externí odkaz:
http://arxiv.org/abs/2011.10418
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Autor:
Colin, Claire V., Ding, Lei, Ressouche, Eric, Robert, Julien, Terada, Noriki, Gay, Frederic, Lejay, Pascal, Simonet, Virginie, Darie, Céline, Bordet, Pierre, Petit, Sylvain
Anisotropic multiferroic properties of SrMnGe2O6 pyroxene single crystals were systematically investigated by means of magnetization, heat capacity, pyroelectric current measurement and elastic and inelastic neutron scattering experiments. Single cry
Externí odkaz:
http://arxiv.org/abs/1912.10935