The effect of resonance on the ground-state energy of the Heisenberg Hamiltonian

M.O. Elout and W.J.A. Maaskant

Physica A: Statistical Mechanics and its Applications, 1995, vol. 216, issue 3, 353-368

Abstract: The ground-state properties of a chain of squares, with at every corner of a square an s = 12 particle and doped with two holes, have been studied in the antiferromagnetic Heisenberg model. The ground-state energies, staggered magnetisation and spin-spin correlations are given, using different basis sets. These data have been analyzed in terms of a magnetic contribution to the interaction of the two holes. An attractive interaction between the holes has been found and ascribed to resonance. This resonance has been quantified in terms of sizes of subsets of the basis set, classified by the number of singlet bonds along an exchange interaction.

Date: 1995
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/0378437195000312
Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:216:y:1995:i:3:p:353-368

DOI: 10.1016/0378-4371(95)00031-2

Access Statistics for this article

Physica A: Statistical Mechanics and its Applications is currently edited by K. A. Dawson, J. O. Indekeu, H.E. Stanley and C. Tsallis

More articles in Physica A: Statistical Mechanics and its Applications from Elsevier
Bibliographic data for series maintained by Catherine Liu ().