Speakers
Dr Devashibhai Adroja.aspx
Recently the Honeycomb lattice Li2RuO3
has attracted considerable attention in condensed matter physics both
in experimentally and theoretically due to the structural phase
transition near 550K (high temperature S.G. C2/m to the low temperature
S.G. P21/m) associated with the metal-insulator transition and also the
spin-singlet formation (below 550K). The Honeycomb layered structure of
Li2RuO3 is an ideal realization of the Kiteave model. Besides its
importance in the fundamental physics, Li2RuO3 has also importance for
the Li-battery technology as it is a potential battery cathode material
due to its better electrochemical performance. We have investigated two
samples of Li2RuO3 using neutron diffraction, inelastic neutron
scattering, magnetization, heat capacity and muon spin rotation
measurements. Our study shows the presence of new low energy excitations
in one of the Li2RuO3 samples, which we attribute due to the disorder
between Ru and Li sites.
