Elementary excitations in antiferromagnetic Heisenberg systems


Iske, P.L. and Caspers, W.J. (1987) Elementary excitations in antiferromagnetic Heisenberg systems. Physica A, 146 (1-2). pp. 151-174. ISSN 0378-4371

open access
Abstract:The structure of the (eigen)states of antiferromagnetic Heisenberg systems is discussed. These systems are shown to be equivalent to classical systems of coupled harmonic oscillators. Most attention will be paid to the first excited state. This state is supposed to be a triplet. An approximation method, which is a generalization of a method, used to describe the ground state of Heisenberg systems, will be used to describe elementary excitations. The working of the method is demonstrated by some small-system calculations.
Item Type:Article
Copyright:© 1987 Elsevier Science
Link to this item:http://purl.utwente.nl/publications/69867
Official URL:https://doi.org/10.1016/0378-4371(87)90226-3
Export this item as:BibTeX
HTML Citation
Reference Manager


Repository Staff Only: item control page