ENERGY-GAP IN HEISENBERG ANTIFERROMAGNETIC HALF-INTEGER SPIN CHAINS WITH LONG-RANGE INTERACTIONS

Authors
PARREIRA JR BOLINA O PEREZ JF
Citation
Jr. Parreira et al., ENERGY-GAP IN HEISENBERG ANTIFERROMAGNETIC HALF-INTEGER SPIN CHAINS WITH LONG-RANGE INTERACTIONS, Modern physics letters B, 10(1-2), 1996, pp. 47-50
Citations number
2
Categorie Soggetti
Physics, Applied","Physics, Condensed Matter","Physycs, Mathematical
Journal title
Modern physics letters B → ACNP
ISSN journal
02179849
Volume
10
Issue
1-2
Year of publication
1996
Pages
47 - 50
Database
ISI
SICI code
0217-9849(1996)10:1-2<47:EIHAHS>2.0.ZU;2-V
Abstract
We show that there is no gap in the excitation spectrum of antiferroma gnetic chains with half-integer spins and long-range interactions prov ided the exchange function has a sufficiently rapid decay.