Zobrazeno 1 - 10
of 39
pro vyhledávání: '"De Brion, Sophie"'
Autor:
Ding, Lei, Colin, Claire V., Simonet, Virginie, Stock, Chris, Brubach, Jean-Blaise, Verseils, Marine, Roy, Pascale, Sakai, Victoria Garcia, Koza, Michael M., Piovano, Andrea, Ivanov, Alexandre, Rodriguez-Rivera, Jose A., de Brion, Sophie, Songvilay, Manila
In metal-organic-framework (MOF) perovskites, both magnetic and ferroelectric orderings can be readily realized by compounding spin and charge degrees of freedom. The hydrogen bonds that bridge the magnetic framework and organic molecules have long b
Externí odkaz:
http://arxiv.org/abs/2307.10746
Autor:
Alexanian, Yann, Robert, Julien, Simonet, Virginie, Langérôme, Benjamin, Brubach, Jean-Blaise, Roy, Pascale, Decorse, Claudia, Lhotel, Elsa, Constable, Evan, Ballou, Rafik, De Brion, Sophie
While the spin liquid state in the frustrated pyrochlore Tb$_{2+x}$Ti$_{2-x}$O$_{7+y}$ has been studied both experimentally and theoretically for more than two decades, no definite description of this unconventional state has been achieved. Using syn
Externí odkaz:
http://arxiv.org/abs/2207.10036
Autor:
Milesi-Brault, Cosme, Toulouse, Constance, Constable, Evan, Aramberri, Hugo, Simonet, Virginie, de Brion, Sophie, Berger, Helmuth, Paolasini, Luigi, Bosak, Alexei, Íñiguez, Jorge, Guennou, Mael
Publikováno v:
Phys. Rev. Lett. 124, 097603 (2020)
Model materials are precious test cases for elementary theories and provide building blocks for the understanding of more complex cases. Here, we describe the lattice dynamics of the structural phase transition in francisite Cu3Bi(SeO3)2O2Cl at 115 K
Externí odkaz:
http://arxiv.org/abs/1907.12069
Autor:
Chaix, Laura, Ballou, Rafik, Cano, Andres, Petit, Sylvain, De Brion, Sophie, Ollivier, Jacques, Regnault, Louis-Pierre, Ressouche, Eric, Constable, Evan, Colin, Claire, Zorko, A., Scagnoli, Valerio, Balay, Joël, Lejay, Pascal, Simonet, Virginie
The chiral Fe-based langasites represent model systems of triangle-based frustrated magnets with a strong potential for multiferroicity. We report neutron scattering measurements for the multichiral Ba3MFe3Si2O14 (M = Nb, Ta) langasites revealing new
Externí odkaz:
http://arxiv.org/abs/1506.06491
Autor:
Chaix, Laura, De Brion, Sophie, Petit, Sylvain, Ballou, Rafik, Regnault, Louis-Pierre, Ollivier, Jacques, Brubach, Jean-Blaise, Roy, Pascale, Debray, Jérôme, Lejay, Pascal, Cano, Andres, Ressouche, Eric, Simonet, Virginie
Publikováno v:
Physical Review Letters 112, 13 (2014) 137201
The low energy dynamical properties of the multiferroic hexagonal perovskite ErMnO3 have been studied by inelastic neutron scattering as well as terahertz and far infrared spectroscopies on synchrotron source. From these complementary techniques, we
Externí odkaz:
http://arxiv.org/abs/1402.7018
Autor:
Chaix, Laura, De Brion, Sophie, Levy-Bertrand, Florence, Simonet, Virginie, Ballou, Rafik, Canals, Benjamin, Lejay, Pascal, Brubach, Jean-Blaise, Greff, Gaëlle, Willaert, Fabrice, Roy, Pascale, Cano, Andres
Publikováno v:
Physical Review Letters (2013) PRL 110, 157208 (2013)
We have determined the terahertz spectrum of the chiral langasite Ba$_3$NbFe$_3$Si$_2$O$_{14}$ by means of synchrotron-radiation measurements. Two excitations are revealed that are shown to have a different nature. The first one, purely magnetic, is
Externí odkaz:
http://arxiv.org/abs/1303.1706
Publikováno v:
Journal of Physics Condensed Matter / JOURNAL OF PHYSICS-CONDENSED MATTER 22 (2010) 126001
Using magnetic torque measurement on a NaNiO2 single crystal, we have established the magnetic phase diagram of this triangular compound. It presents 5 different phases depending on the temperature (4 K - 300 K) and magnetic field (0 - 22 T) revealin
Externí odkaz:
http://arxiv.org/abs/1003.4848
Autor:
Bonda, M., Hopzapfel, M., De Brion, Sophie, Darie, Céline, Feher, T., Baker, P. J., Lancaster, T., Blundell, S. J., Pratt, F. L.
In LiNiO2, the Ni3+ ions, with S=1/2 and twofold orbital degeneracy, are arranged on a trian- gular lattice. Using muon spin relaxation (MuSR) and electron spin resonance (ESR), we show that magnesium doping does not stabilize any magnetic or orbital
Externí odkaz:
http://arxiv.org/abs/0807.4651
Autor:
Robert, Julien, Simonet, Virginie, Canals, Benjamin, Ballou, Rafik, Lhotel, Elsa, Darie, Céline, Bordet, Pierre, Ouladdiaf, Bachir, Johnson, Marc, Ollivier, Jacques, Braithwaite, Daniel, Rakoto, Harison, De Brion, Sophie
Publikováno v:
Physical Review B 77 (2008) 054421
Using magnetization, specific heat and neutron scattering measurements, as well as exact calculations on realistic models, the magnetic properties of the \lacuvo compound are characterized on a wide temperature range. At high temperature, this oxide
Externí odkaz:
http://arxiv.org/abs/0710.3025
Autor:
De Brion, Sophie, Darie, C., Hopzapfel, M., Talbayev, D., Mihaly, L., Simon, F., Janossy, A., Chouteau, G.
Publikováno v:
Physical Review B 75 (02/03/2007) 094402
In NaNiO2, Ni3+ ions form a quasi two dimensional triangular lattice of S = 1=2 spins. The magnetic order observed below 20K has been described as an A type antiferromagnet with ferro- magnetic layers weakly coupled antiferromagnetically. We studied
Externí odkaz:
http://arxiv.org/abs/cond-mat/0608238