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8 papers · 2 filters
Why the Co-based 115 compounds are different?: The case study of GdMIn (M=Co, Rh, Ir)
Jorge I. Facio, D. Betancourth, Pablo Pedrazzini +4
The discovery in 2001 of superconductivity in some heavy fermion compounds of the RMIn (R=4f or 5f elements, M=Co, Rh, Ir) family, has triggered enormous amount of research poi…
Grain size modification in the magnetocaloric and non-magnetocaloric transitions in La0.5Ca0.5MnO3 probed by direct and indirect methods
M. Quintero, S. Passanante, I. Irurzub +2
The influence of the grain size in the magnetic properties of phase separated manganites is an important issue evidenced more than a decade ago. The formation of long range ordered…
First-Order Insulator-to-Metal Mott Transition in the Paramagnetic 3D System GaTa4Se8
A. Camjayi, C. Acha, R. Weht +5
The nature of the Mott transition in the absence of any symmetry braking remains a matter of debate. We study the correlation-driven insulator-to-metal transition in the prototypic…
Localised Wannier orbital basis for the Mott insulators GaV4S8 and GaTa4Se8
A. Camjayi, R. Weht, M. J. Rozenberg
We study the electronic properties of GaV4S8 (GVS) and GaTaSe8 (GTS), two distant members within the large family of chalcogenides AM4X8, with A={Ga, Ge}, M={V, Nb, Ta, Mo} and X={…
Experimental consequences at high temperatures of quantum critical points
D. C. Freitas, P. Rodière, M. Núñez +4
We study the Cr_(1-x) Re_x phase diagram finding that its phase transition temperature towards an antiferromagnetic order T_N follows a quantum [(x_c-x)/x_c ]^ψ law, with ψ=1/2, fr…
Non-Fermi liquid behaviour in non-equilibrium transport through Co doped Au chains connected to four-fold symmetric leads
S. Di Napoli, P. Roura-Bas, Andreas Weichselbaum +1
We calculate the differential conductance as a function of temperature and bias voltage, , through Au monoatomic chains with a substitutional Co atom as a magnetic impurity…