Topic
Mott transition
About: Mott transition is a research topic. Over the lifetime, 2444 publications have been published within this topic receiving 78401 citations.
Papers published on a yearly basis
Papers
More filters
12 citations
TL;DR: In this article, a conceptual picture of the Mott insulator state which clarifies the concept of localized electrons, and which has recently been implemented with much success, is presented, within the context of unrestricted Hartree-Fock theory using screened Coulomb and exchange parameters to represent the intra-atomic d-d interactions.
12 citations
TL;DR: It is shown that the cooperative action of intraorbital repulsion and Hund's exchange becomes the dominant physical mechanism in these materials if their t_{2g} shell is half filled.
Abstract: We clarify the origin of the strikingly different spectroscopic properties of the chemically similar compounds ${\mathrm{NaOsO}}_{3}$ and ${\mathrm{LiOsO}}_{3}$. Our first-principle, many-body analysis demonstrates that the highly sensitive physics of these two materials is controlled by their proximity to an adjacent Hund's-Mott insulating phase. Although $5d$ oxides are mildly correlated, we show that the cooperative action of intraorbital repulsion and Hund's exchange becomes the dominant physical mechanism in these materials if their ${t}_{2g}$ shell is half filled. Small material specific details hence result in an extremely sharp change of the electronic mobility, explaining the surprisingly different properties of the paramagnetic high-temperature phases of the two compounds.
12 citations
TL;DR: In this paper, the authors reviewed the present understanding of the connection between the electronic structure and the crystallographic behaviour of the lanthanide and actinide elements and concluded that the 4f electrons in α-cerium contribute most significantly to the metal bonding.
11 citations
TL;DR: In this article, the authors derived new sum rules for the real and imaginary parts of the frequency-dependent Hall constant and Hall conductivity, and discussed their relevance to the doped Mott insulator that they described within the dynamical mean-field theory of strongly correlated electron systems.
Abstract: We derive new sum rules for the real and imaginary parts of the frequency-dependent Hall constant and Hall conductivity. As an example, we discuss their relevance to the doped Mott insulator that we describe within the dynamical mean-field theory of strongly correlated electron systems.
11 citations