140 citations · 1.1k across the 23 of their papers we have counts for
23 papers
Spin correlations and cobalt charge states: A new phase diagram of sodium cobaltates
G. Lang, J. Bobroff, H. Alloul +2
Using 23Na NMR measurements on sodium cobaltates at intermediate dopings (0.44<=x<=0.62), we establish the qualitative change of behavior of the local magnetic susceptibility at x*…
Na atomic order, Co charge disproportionation and magnetism in NaCoO for large Na contents
H. Alloul, I. R. Mukhamedshin, G. Collin +1
We have synthesized and characterized four different stable phases of Na ordered NaCoO, for . Above 100 K they display similar Curie-Weiss susceptibilities…
Influence of charge order on the magnetic properties of NaCoO for
I. R. Mukhamedshin, H. Alloul, G. Collin +1
We have synthesized and characterized the four different stable phases of Na ordered NaCoO, for . Above 100K they display similar Curie-Weiss spin…
Direct evidence for a dynamical ground state in the highly frustrated TbSnO pyrochlore
F. Bert, P. Mendels, A. Olariu +5
MuSR experiments have been performed on powder sample of the "ordered spin ice" TbSnO pyrochlore compound. At base temperature (T=35mK) the muon relaxation is found to…
NMR study of the magnetic and metal-insulator transitions in Na0.5CoO2: a nesting scenario
J. Bobroff, G. Lang, H. Alloul +2
Co and Na NMR are used to probe the local susceptibility and charge state of the two Co sites of the Na-ordered orthorhombic Na0.5CoO2. Above T_N=86K, both sites display a similar…
Evidence of a single nonmagnetic Co3+ state in the Na1CoO2 cobaltate
G. Lang, J. Bobroff, H. Alloul +3
Macroscopic magnetization, muon spin rotation (muSR), and NMR measurements were carried out to study magnetism in the Na1CoO2 cobaltate. Using SQUID measurements, Na1CoO2 is shown…