The energy spectra of the quantum spin S = 1 ring are calculated. The numerical exact diagonalization technique exploiting the point group symmetry is applied to the Heisenberg spin Hamiltonian with single ion anisotropy modelling approximately a dodecanuclear nickel cluster. The energy level dependence of the anisotropy parameter D is analyzed and the field dependent level crossing is presented.
Single-ion anisotropy effects on the energy spectra of spin S = 1 Heisenberg ring / G., Kamieniarz; M., Haugler; G., Musial; CARAMICO D'AURIA, Alvaro; Esposito, Filippo; D., Gatteschi. - In: INORGANICA CHIMICA ACTA. - ISSN 0020-1693. - STAMPA. - 360:(2007), pp. 3941-3944.
Single-ion anisotropy effects on the energy spectra of spin S = 1 Heisenberg ring
CARAMICO D'AURIA, ALVARO;ESPOSITO, FILIPPO;
2007
Abstract
The energy spectra of the quantum spin S = 1 ring are calculated. The numerical exact diagonalization technique exploiting the point group symmetry is applied to the Heisenberg spin Hamiltonian with single ion anisotropy modelling approximately a dodecanuclear nickel cluster. The energy level dependence of the anisotropy parameter D is analyzed and the field dependent level crossing is presented.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
