Exact diagonalization studies of doped Heisenberg spin rings
Strongly Correlated Electrons
2007-05-23 v1 Materials Science
Abstract
Motivated by magnetization studies of the "telephon number compound" Sr_14Cu_24O_41 we investigate doped Heisenberg spin rings by means of complete numerical diagonalization of a Heisenberg Hamiltonian that depends parametrically on hole positions. A comparison with experimental magnetization data reveals rather accurate information about the screened electrostatic interaction between the charged holes on the ring which appears to be astonishingly strong.
Keywords
Cite
@article{arxiv.cond-mat/0406592,
title = {Exact diagonalization studies of doped Heisenberg spin rings},
author = {J. Schnack and F. Ouchni},
journal= {arXiv preprint arXiv:cond-mat/0406592},
year = {2007}
}
Comments
3 pages, 2 figures, submitted to JMMM