Strong correlations from Hund's coupling
Strong electronic correlations are often associated with the proximity of a Mott-insulating
state. In recent years however, it has become increasingly clear that the Hund's rule …
state. In recent years however, it has become increasingly clear that the Hund's rule …
Electronic structure calculations with dynamical mean-field theory
A review of the basic ideas and techniques of the spectral density-functional theory is
presented. This method is currently used for electronic structure calculations of strongly …
presented. This method is currently used for electronic structure calculations of strongly …
[图书][B] Transition metal compounds
DI Khomskii - 2014 - books.google.com
Describing all aspects of the physics of transition metal compounds, this book provides a
comprehensive overview of this unique and diverse class of solids. Beginning with the basic …
comprehensive overview of this unique and diverse class of solids. Beginning with the basic …
Electronic structure calculations using dynamical mean field theory
K Held - Advances in physics, 2007 - Taylor & Francis
The calculation of the electronic properties of materials is an important task of solid-state
theory, albeit particularly difficult if electronic correlations are strong, eg, in transition metals …
theory, albeit particularly difficult if electronic correlations are strong, eg, in transition metals …
Orbital physics in transition metal compounds: new trends
SV Streltsov, DI Khomskii - Physics-Uspekhi, 2017 - iopscience.iop.org
The present review discusses different effects related to orbital degrees of freedom. Leaving
aside such aspects as the superexchange mechanism of cooperative Jahn–Teller …
aside such aspects as the superexchange mechanism of cooperative Jahn–Teller …
Hybridization expansion impurity solver: General formulation and application to Kondo lattice and two-orbital models
A recently developed continuous time solver based on an expansion in hybridization about
an exactly solved local limit is reformulated in a manner appropriate for general classes of …
an exactly solved local limit is reformulated in a manner appropriate for general classes of …
Correlation effects in two-dimensional topological insulators
M Hohenadler, FF Assaad - Journal of Physics: Condensed …, 2013 - iopscience.iop.org
Topological insulators have become one of the most active research areas in condensed
matter physics. This article reviews progress on the topic of electronic correlation effects in …
matter physics. This article reviews progress on the topic of electronic correlation effects in …
Turning a nickelate Fermi surface into a cupratelike one through heterostructuring
Using the local density approximation and its combination with dynamical mean-field theory,
we show that electronic correlations induce a single-sheet, cupratelike Fermi surface for …
we show that electronic correlations induce a single-sheet, cupratelike Fermi surface for …
Orbital-selective Mott transition out of band degeneracy lifting
We outline a general mechanism for orbital-selective Mott transition, the coexistence of both
itinerant and localized conduction electrons, and show how it can take place in a wide range …
itinerant and localized conduction electrons, and show how it can take place in a wide range …
High-spin to low-spin and orbital polarization transitions in multiorbital Mott systems
We study the interplay of crystal field splitting and Hund coupling in a two-orbital model
which captures the essential physics of systems with two electrons or holes in the eg shell …
which captures the essential physics of systems with two electrons or holes in the eg shell …