99 citations · 264 across the 9 of their papers we have counts for
9 papers
From quantum criticality to enhanced thermopower in strongly correlated layered cobalt oxide
P. Limelette, W. Saulquin, H. Muguerra +1
We report on susceptibility measurements in the strongly correlated layered cobalt oxide [BiBa0.66K0.36O2]CoO2, which demonstrate the existence of a magnetic quantum critical point…
New electronic orderings observed in cobaltates under the influence of misfit periodicities
A. Nicolaou, V. Brouet, M. Zacchigna +10
We study with ARPES the electronic structure of CoO2 slabs, stacked with rock-salt (RS) layers exhibiting a different (misfit) periodicity. Fermi Surfaces (FS) in phases with diffe…
Experimental study of the incoherent spectral weight in the photoemission spectra of the misfit cobaltate [Bi2Ba2O4][CoO2]2
A. Nicolaou, V. Brouet, M. Zacchigna +8
Previous ARPES experiments in NaxCoO2 reported both a strongly renormalized bandwidth near the Fermi level and moderately renormalized Fermi velocities, leaving it unclear whether…
Large increase of the Curie temperature by orbital ordering control
Aymeric Sadoc, Bernard Mercey, Charles Simon +3
Using first principle calculations we showed that the Curie temperature of manganites thin films can be increased by far more than an order of magnitude by applying appropriate str…
Magnetoresistance scaling in the layered cobaltate Ca3Co4O9
P. Limelette, J. C. Soret, H. Muguerra +1
We investigate the low temperature magnetic field dependences of both the resistivity and the magnetization in the misfit cobaltate Ca3Co4O9 from 60 K down to 2 K. The measured neg…
Direct observation of strong correlations near the band insulator regime of Bi misfit cobaltates
V. Brouet, A. Nicolaou, M. Zacchigna +6
We present the first angle-resolved photoemission (ARPES) measurement of Fermi Surface in the "misfit" cobaltate [Bi2Ba2O4].[CoO2]~2. This compound contains the same triangular Co…