Correlated metallic state of vanadium dioxide

By M. M. Qazilbash, K. Burch, D. Whisler, David Shrekenhamer, B. Chae, H. T. Kim, D. Basov. 2006

146 citations recorded by the source corpus.

The metal-insulator transition and unconventional metallic transport in vanadium dioxide (VO$_2$) are investigated with a combination of spectroscopic ellipsometry and reflectance measurements. The data indicates that electronic correlations, not electron-phonon interactions, govern charge dynamics in the metallic state of VO$_2$. This study focuses on the frequency and temperature dependence of the conductivity in the regime of extremely short mean free path violating the Ioffe-Regel-Mott limit of metallic transport. The standard quasiparticle picture of charge conduction is found to be untenable in metallic VO$_2$.

Subfields: Condensed Matter Physics, Materials Chemistry, Polymers and Plastics

View Paper: https://www.semanticscholar.org/paper/a25ed1a856de19c8de482c53cc25e0a23b4bd3e2

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In Condensed Matter Physics

In Materials Chemistry

In Polymers and Plastics

Citations in the corpus

Electronic correlations in the iron pnictides (2009, background): “Electron–phonon scattering theory predicts a constant, frequency-independent scattering rate above the cutoff of the phonon spectru”
Transparent conductors as solar energy materials: A panoramic review (2007, background): “A detailed investigation of the optical properties was presented recently for VO2 films above and below tc [995].”
Phase-transition driven memristive system (2009, background): “VO2 has proven to be a versatile material, exhibiting many properties exploitable for devices [8-10] What makes VO2 so useful and interesting is its insulator-to-metal (IMT) phase transition occurring near room temperature [11, 12], and the ability to control this transition by applied current [13],”
Electrodynamics of correlated electron materials (2011, background): “…commonly uncovers very strong dissipation on the metallic side of the transition (Basov et al., 1996; Dodge et al., 2000a; El Azrak et al., 1994; Lee et al., 2005b; van der Marel et al., 2003; Orenstein et al., 1990; Puchkov et al., 1996a; Qazilbash et al., 2006; Rotter et al., 1991; Zaanen, 2004).”