EXPERIMENTAL AND THEORETICAL-STUDIES OF FINITE-SIZE EFFECTS IN AN S=12 ANTIFERROMAGNETIC HEISENBERG CHAIN/

Authors
ASAKAWA H MATSUDA M MINAMI K YAMAZAKI H KATSUMATA K
Citation
H. Asakawa et al., EXPERIMENTAL AND THEORETICAL-STUDIES OF FINITE-SIZE EFFECTS IN AN S=12 ANTIFERROMAGNETIC HEISENBERG CHAIN/, Physical review. B, Condensed matter, 57(14), 1998, pp. 8285-8289
Citations number
30
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physical review. B, Condensed matter → ACNP
ISSN journal
01631829
Volume
57
Issue
14
Year of publication
1998
Pages
8285 - 8289
Database
ISI
SICI code
0163-1829(1998)57:14<8285:EATOFE>2.0.ZU;2-#
Abstract
Finite-size effects in a spin-1/2 one-dimensional (1D) Heisenberg anti ferromagnet (HAF) are studied experimentally and theoretically. The ca lculated susceptibility is compared with that observed in the quasi-1D HAF SrCu1-xMgxO2. Excellent agreement between theory and experiment i s obtained without any adjustable parameters above about 0.02J, where J is the dominant exchange interaction constant.