The transition temperature between the ordered and the paramagnetic phase of 3D quantum Heisenberg ferro- and antiferromagnets is theoretically predicted with very good accuracy for any spin value, starting from its known counterpart for the classical system. The really straightforward evaluation is made possible by a method that reduces the quantum problem to an effective classical Hamiltonian.
Titolo: | TRANSITION TEMPERATURE OF THREE-DIMENSIONAL QUANTUM HEISENBERG FERRO- AND ANTIFERROMAGNETS |
Autori di Ateneo: | |
Autori: | CUCCOLI, ALESSANDRO; R. VAIA; R. MACIOCCO |
Data di pubblicazione: | 2001 |
Rivista: | |
Volume: | 226-230, PART 1 |
Pagina iniziale: | 566 |
Pagina finale: | 568 |
Abstract: | The transition temperature between the ordered and the paramagnetic phase of 3D quantum Heisenberg ferro- and antiferromagnets is theoretically predicted with very good accuracy for any spin value, starting from its known counterpart for the classical system. The really straightforward evaluation is made possible by a method that reduces the quantum problem to an effective classical Hamiltonian. |
Handle: | http://hdl.handle.net/2158/12554 |
Appare nelle tipologie: | 1a - Articolo su rivista |
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