Sublattice interference in the kagome Hubbard model
By M. Kiesel, R. Thomale. 2012
198 citations recorded by the source corpus.
We study the electronic phases of the kagome Hubbard model (KHM) in the weak-coupling limit around Van Hove filling. Through an analytic renormalization group analysis, we find that there exists a sublattice interference mechanism where the kagome sublattice structure affects the character of the Fermi surface instabilities. It leads to major suppression of ${T}_{c}$ for $d+id$ superconductivity in the KHM and causes an anomalous increase of ${T}_{c}$ upon addition of longer-range Hubbard interactions. We conjecture that the suppression of conventional Fermi liquid instabilities makes the KHM a prototype candidate for hosting exotic electronic states of matter at intermediate coupling.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/ecf87267980808b63a669cde9a275913722cb725
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atomic and Molecular Physics, and Optics
Citations in the corpus
- Quantum states and intertwining phases in kagome materials (2023, background): “…inhomogeneous sub-lattice occupation and twofold vHS are different from the honeycomb lattice model (two sublattice sites in the unit cell), where the sublattice contribution is homogeneous along the Fermi surface at the vHS filling, and two vHSs at different energy are theoretically identical 44 .”