MULTIMAGNON EXCITATIONS IN ALTERNATING SPIN BOND CHAINS/

Authors
SOUTHERN BW CUELLAR JLM LAVIS DA
Citation
Bw. Southern et al., MULTIMAGNON EXCITATIONS IN ALTERNATING SPIN BOND CHAINS/, Physical review. B, Condensed matter, 58(14), 1998, pp. 9156-9165
Citations number
22
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
58
Issue
14
Year of publication
1998
Pages
9156 - 9165
Database
ISI
SICI code
0163-1829(1998)58:14<9156:MEIASB>2.0.ZU;2-X
Abstract
The nature of multimagnon excitations in alternating spin/bond ferroma gnetic chains are studied using a combination of scaling methods and t he recursion method. Two-magnon excitations for a Heisenberg chain wit h either alternating spin magnitudes, S and S', or alternating nearest -neighbor couplings, J(1) and J(2) can be studied using real-space res caling techniques. These results are then used to investigate three-ma gnon excitations using the recursion method. [S0163-1829(98)02038-6].