Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Chapon, Laurent C."'
Autor:
Mukherjee, Saumya, Jung, Sung Won, Weber, Sophie F., Xu, Chunqiang, Qian, Dong, Xu, Xiaofeng, Biswas, Pabitra K., Kim, Timur K., Chapon, Laurent C., Watson, Matthew D., Neaton, Jeffrey B., Cacho, Cephise
Transition-metal dichalcogenides (TMDs) offer an ideal platform to experimentally realize Dirac fermions. However, typically these exotic quasiparticles are located far away from the Fermi level, limiting the contribution of Dirac-like carriers to th
Externí odkaz:
http://arxiv.org/abs/1912.08535
Autor:
Rodríguez-Velamazán, J. Alberto, Fabelo, Oscar, Campo, Javier, Rodríguez-Carvajal, Juan, Qureshi, Navid, Chapon, Laurent C.
Neutron spherical polarimetry, which is directly sensitive to the absolute magnetic configuration and domain population, has been used in this work to unambiguously prove the multiferroicity of (ND4)2[FeCl5(D2O)]. We demonstrate that the application
Externí odkaz:
http://arxiv.org/abs/1803.00826
Autor:
Rodríguez-Velamazán, J. Alberto, Fabelo, Oscar, Campo, Javier, Millan, Angel, Rodríguez-Carvajal, Juan, Chapon, Laurent C.
Publikováno v:
Phys. Rev. B 95, 174439 (2017)
Our results describe an unprecedented example of change in the mechanism of magnetically-induced electric polarization from spin current to spin-dependent p-d hybridization model. We have followed the evolution of the magnetic structures of (ND4)2[Fe
Externí odkaz:
http://arxiv.org/abs/1608.02369
Autor:
Lefrançois, Emilie, Chapon, Laurent C., Simonet, Virginie, Lejay, Pascal, Khalyavin, Dmitry, Rayaprol, Sudhindra, Sampathkumaran, E. V., Ballou, Rafik, Adroja, D. T.
We have studied the field and temperature dependence of the magnetization of single crystals of Sr3NiIrO6. These measurements evidence the presence of an easy axis of anisotropy and two anomalies in the magnetic susceptibility. Neutron powder diffrac
Externí odkaz:
http://arxiv.org/abs/1403.4815
Autor:
Hearmon, Alexander J., Fabrizi, Federica, Chapon, Laurent C., Johnson, R. D., Prabhakaran, Dharmalingam, Streltsov, Sergey V., Brown, P. J., Radaelli, Paolo G.
Publikováno v:
Phys. Rev. Lett. 108, 237201 (2012)
The coupling of magnetic chiralities to the ferroelectric polarisation in multiferroic RbFe(MoO$_4$)$_2$ is investigated by neutron spherical polarimetry. Because of the axiality of the crystal structure below $T_\textrm{c}$ = 190 K, helicity and tri
Externí odkaz:
http://arxiv.org/abs/1202.2317
SrHo2O4 is a geometrically frustrated compound because the Ho^3+ ions are arranged in a network of triangles and hexagons and coupled with antiferromagnetic exchange interactions. Powder neutron diffraction measurements show that long-range magnetic
Externí odkaz:
http://arxiv.org/abs/1110.3521
Autor:
Colman, Ross H, Bert, Fabrice, Boldrin, David, Hillier, Adrian D, Chapon, Laurent C, Manuel, Pascal, Mendels, Phillipe, Wills, Andrew S
We report the study of high quality samples of the frustrated S = 1/2 kagome antiferromagnet vesignieite, Cu3Ba(VO5H)2. Neutron powder diffraction measurements evidence the high quality of the kagome lattice and show no sign of a transition to long-r
Externí odkaz:
http://arxiv.org/abs/1104.2558
Autor:
Toledano, Pierre, Leo, Naemi, Khalyavin, Dmitry D., Chapon, Laurent C., Hoffmann, Tim, Meier, Dennis, Fiebig, Manfred
The magnetic phase transitions reported below 230 K in cupric oxide are analyzed theoretically at the macroscopic and microscopic levels. The incommensurate multiferroic and lock-in commensurate phases are shown to realize an inverted sequence of sym
Externí odkaz:
http://arxiv.org/abs/1101.4284
The unusual magnetoelectric effects observed in the multiferroic phase arising below TN=6.7K in Ba2CoGe2O7 (BCG) are related to the spontaneous toroidal moment existing in this compound. The transition to the multiferroic state, which involves sponta
Externí odkaz:
http://arxiv.org/abs/1012.0785
Autor:
Damay, Françoise, Martin, Christine, Hardy, Vincent, Maignan, Antoine, André, Gilles, Knight, Kevin, Giblin, Sean R., Chapon, Laurent C.
The crystal and magnetic structures of the S = 3/2 chain antiferromagnet beta-CaCr2O4 have been investigated by means of specific heat, magnetization, muon relaxation and neutron powder diffraction between 300K and 1.5K. Owing to the original topolog
Externí odkaz:
http://arxiv.org/abs/0906.3378