Abstract
We study the ground state properties of a geometrically frustrated Hubbard model on the checkerboard lattice by means of the path-integral renormalization group method. We calculate the charge and spin correlation functions to investigate instabilities to the charge and/or spin-ordered states. In contrast to the recent claim based on a renormalized mean-field treatment, charge correlations are uniformly suppressed while spin correlations are enhanced at certain wave vectors.
Original language | English |
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Pages (from-to) | 294-296 |
Number of pages | 3 |
Journal | Physica B: Condensed Matter |
Volume | 378-380 |
Issue number | SPEC. ISS. |
DOIs | |
Publication status | Published - 2006 May 1 |
Externally published | Yes |
Keywords
- Checkerboard lattice
- Geometrical frustration
- Hubbard model
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering