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cond-mat.str-el2006★ 13 cited
Spin excitations in the antiferromagnet NaNiO2
Sophie De Brion, C. Darie, M. Hopzapfel +5
In NaNiO2, Ni3+ ions form a quasi two dimensional triangular lattice of S = 1=2 spins. The magnetic order observed below 20K has been described as an A type antiferromagnet with fe…
cond-mat.str-el2004
Decoupling of orbital and spin degrees of freedom in Li1-xNaxNiO2
M. Hopzapfel, S. Debrion, C. Darie +6
In the Li1-xNaxNiO2 solid solutions three different single phase regions exist: for x > 0.9, forx = 0.7 and for x < 0.3. Although the intermediate compound does not show the cooper…
cond-mat.str-el2003
Phase separation effects in charge-ordered Pr0.5Ca0.5MnO3 thin film
S. de Brion, G. Storch, G. Chouteau +3
Compressed Pr0.5Ca0.5MnO3 films (250nm) deposited on LaAlO3 have been studied by Electron Spin Resonance technique under high frequency and high magnetic field. We show evidences f…