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- Centre National de la Recherche ScientifiqueFR185 papers
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6 papers · 2 filters
c-axis resistivity, pseudogap, superconductivity and Widom line in doped Mott insulators
G. Sordi, P. Sémon, K. Haule +1
Layered doped Mott insulators, such as the cuprates, show unusual temperature dependence of the resistivity. Intriguingly, the resistivity perpendicular to the CuO planes, $ρ_c…
Anisotropic spin-dynamics in the Kondo semiconductor CeRu2Al10
Julien Robert, Jean-Michel Mignot, Sylvain Petit +7
Spin dynamics in the new Kondo insulator compound CeRu2Al10 has been studied using unpolarized and polarized neutron scattering on single crystals. In the unconventional ordered ph…
Magnetoelastic effects in multiferroic YMnO
Tapan Chatterji, Bachir Ouladdiaf, Paul F. Henry +1
We have investigated magnetoelastic effects in multiferroic YMnO below the antiferromagnetic phase transition, K, using neutron powder diffraction. The lat…
Discrete antiferromagnetic spin-wave excitations in the giant ferric wheel Fe18
J. Ummethum, J. Nehrkorn, S. Mukherjee +8
The low-temperature elementary spin excitations in the AFM molecular wheel Fe18 were studied experimentally by inelastic neutron scattering and theoretically by modern numerical me…
Evidence of a bond-nematic phase in LiCuVO4
M. Mourigal, M. Enderle, B. Fåk +5
Polarized and unpolarized neutron scattering experiments on the frustrated ferromagnetic spin-1/2 chain LiCuVO4 show that the phase transition at HQ of 8 Tesla is driven by quadrup…
Magnetic ordering in double perovskites RCoMnO (R= Y,Tb) investigated by high resolution neutron spectroscopy
Tapan Chatterji, Bernhard Frick, Harikrishnan S. Nair
We have investigated low energy nuclear spin excitations in double perovskite compounds RCoMnO (R = Y,Tb) by inelastic neutron scattering with a high-resolution back-scatte…