Exact diagonalization studies of doped Heisenberg spin rings

J. Schnack; F. Ouchni

doi:10.1016/j.jmmm.2004.11.256

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Exact diagonalization studies of doped Heisenberg spin rings

J. Schnack·F. Ouchni

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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.

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J. Schnack, F. Ouchni. 2004-06-24. Exact diagonalization studies of doped Heisenberg spin rings. https://doi.org/10.1016/j.jmmm.2004.11.256

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