Ground-state magnetization of polymerized spin chains

Authors
Cabra, DC Grynberg, MD
Citation
Dc. Cabra et Md. Grynberg, Ground-state magnetization of polymerized spin chains, PHYS REV B, 59(1), 1999, pp. 119-122
Citations number
35
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
59
Issue
1
Year of publication
1999
Pages
119 - 122
Database
ISI
SICI code
0163-1829(19990101)59:1<119:GMOPSC>2.0.ZU;2-1
Abstract
We investigate the ground-state magnetization plateaus appearing in spin-1/ 2 polymerized Heisenberg chains under external magnetic fields. The associa ted fractional quantization scenario and the exponents which characterize t he opening of gapful excitations are analyzed by means of Abelian bosonizat ion methods. Our conclusions are fully supported by the extrapolated result s obtained from Lanczos diagonalizations of finite systems. [S0163-1829(99) 0340 1-3].