INTEGRABLE 2-IMPURITY KONDO MODEL

Authors
Citation
P. Schlottmann, INTEGRABLE 2-IMPURITY KONDO MODEL, Physical review letters, 80(22), 1998, pp. 4975-4978
Citations number
27
Categorie Soggetti
Physics
Journal title
ISSN journal
00319007
Volume
80
Issue
22
Year of publication
1998
Pages
4975 - 4978
Database
ISI
SICI code
0031-9007(1998)80:22<4975:I2KM>2.0.ZU;2-W
Abstract
The exact solution by means of Bethe's Ansatz of a variant of the two- impurity Kondo problem is presented. The occupation of the singlet and triplet states, the expectation value [(S) over right arrow(1) . (S) over cap(2)], the homogeneous and staggered magnetic field susceptibil ities, and the specific heat gamma coefficient are studied for the gro und state as a function of the Ruderman-Kittel-Kasuya-Yosida-coupling strength.