The open spin chain with impurity

An exact solution

authored by

Holger Frahm, Andrei A. Zvyagin

Abstract

Using a model of an open spin chain that is exactly soluble by means of a Bethe ansatz, we study the effects of a boundary magnetic field and an impurity spin coupled to the chain. An impurity spin only scatters forward, while the boundary is purely a back-scatterer. Two parameters for the impurity and one for the boundary permit us to mimic the effect of real magnetic impurity, with both forward and backward scattering.

Organisation(s)

Institute of Theoretical Physics

External Organisation(s)

B. Verkin Institute for Low Temperature Physics and Engineering of the National Academy of Sciences of Ukraine

Type

Article

Journal

Journal of Physics Condensed Matter

Volume

9

Pages

9939-9946

No. of pages

8

ISSN

0953-8984

Publication date

10.11.1997

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

General Materials Science, Condensed Matter Physics

Electronic version(s)

https://doi.org/10.1088/0953-8984/9/45/021 (Access: Unknown)