Theory of optical spectral weights in Mott insulators with orbital degrees of freedom

Abstract

Introducing partial sum rules for the optical multiplet transitions, we outline a unified approach to magnetic and optical properties of strongly correlated transition metal oxides. On the example of LaVO${}_3$ we demonstrate how the temperature and polarization dependences of different components of the optical multiplet are determined by the underlying spin and orbital correlations dictated by the low-energy superexchange Hamiltonian. Thereby the optical data provides deep insight into the complex spin-orbital physics and the role played by orbital fluctuations.

6 pages, 3 figures, expanded version

References in corpus (1)

• One-Dimensional Confinement and Enhanced Jahn-Teller Instability in LaVO${}_3$

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