We present a theory for charge and heat transport parallel to the interfaces of a multilayer (ML) in which the interfacing gives rise the redistribution of the electronic charges. The ensuing electrical field couples self-consistently to the itinerant electrons, so that the properties of the ML crucially depend on an interplay between the on-site Coulomb forces and the long range electrostatic forces. The ML is described by the Falicov-Kimball model and the self-consistent solution is obtained by iterating simultaneously the DMFT and the Poisson equations. This yields the reconstructed charge profile, the electrical potential, the planar density of states, the transport function, and the transport coefficients of the device.
We find that a heterostructure built of two Mott-Hubbard insulators exhibits, in a large temperature interval, a linear conductivity and a large temperature-independent thermopower. The charge and energy currents are confined to the central part of the ML. Our results indicate that correlated multilayers have the potential for applications; by tuning the band shift and the Coulomb correlation on the central planes, we can bring the chemical potential in the immediate proximity of the Mott-Hubbard gap edge and optimize the transport properties of the device. In such a heterostructure, a small gate voltage can easily induce a MI transition. This switching does not involve the diffusion of electrons over macroscopic distances and it is much faster than in ordinary semiconductors. Furthermore, the right combination of strongly correlated materials with small ZT can produce, theoretically at least, a heterostructure with a large ZT.
的电导率和热电功率的压力依赖性测量通过莫特过渡层有机导体EtMe 3 P [Pd（dmit）2]2。热电效应的临界行为提供了等温压力扫描期间Mott-Hubbard转变的清晰和客观的确定。以上的临界端点，金属-绝缘体交叉，确定的热电效应的最小值，没有被发现符合作为压力的函数的电导率的导数的最大值。我们表明，临界指数的莫特-哈伯德过渡属于伊辛普适类，无论系统的维数。
Effect of vertex corrections on the longitudinal transport through multilayered nanostructures: Exact dynamical mean-field theory approach applied to the inhomogeneous Falicov-Kimball model
Interacting Tomonaga-Lüttinger liquid with impurity for interaction constant $K = 1/2$: Thermopower investigation, entropy variation and heat capacity densities associated with thermoelectric particle transport
University of Bouira（布依拉大学）；Higher Normal School of Bouzareah, University of Bouira（布扎雷亚高等师范学院，布依拉大学）
