Many-body effects on the capacitance of multilayers made from strongly correlated materials

Abstract

Recent work by Kopp and Mannhart on novel electronic systems formed at oxide interfaces has shown interesting effects on the capacitances of these devices. We employ inhomogeneous dynamical mean-field theory to calculate the capacitance of multilayered nanostructures. These multilayered nanostructures are composed of semi-infinite metallic leads coupled via a strongly correlated dielectric barrier region. The barrier region can be adjusted from a metallic regime to a Mott insulator through adjusting the interaction strength. We examine the effects of varying the barrier width, temperature, potential difference, screening length, and chemical potential. We find that the interaction strength has a relatively strong effect on the capacitance, while the potential and temperature show weaker dependence.

19 pages, 7 figures, REVTex

References in corpus (3)

• Large capacitance enhancement and negative compressibility of two-dimensional electronic systems at LaAlO${}_3$/SrTiO${}_3$ interfaces
• Two-dimensional electron liquid state at LaAlO3-SrTiO3 interfaces
• Electronic thermal transport in strongly correlated multilayered nanostructures

Cited by in corpus (11)

• Capacitance and compressibility of heterostructures with strong electronic correlations
• Charge redistribution in correlated heterostuctures within nonequilibrium real-space dynamical mean-field theory
• Nonequilibrium charge transport through Falicov-Kimball structures connected to metallic leads
• Gapless regime in the charge density wave phase of the finite dimensional Falicov-Kimball model
• An electric-field driven Mott metal-insulator transition in correlated thin films: an inhomogeneous dynamical mean-field theory approach
• Spin-orbit controlled quantum capacitance of a polar heterostructure
• Thermoelectric properties of a strongly correlated layer
• Spectral properties of heterostructures containing half-metallic ferromagnets in the presence of local many-body correlations
• Unsupervised Machine Learning Phase Classification for Falicov-Kimball Model
• Interplay between edge states and charge density wave order in the Falicov-Kimball model on a Haldane ribbon
• Bad metal and negative compressibility transitions in a two-band Hubbard model