ISSN:
1573-7357
Keywords:
75.10Jm
;
75.50Ee
;
05.50+q
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We investigate a spin 1/2 Heisenberg antiferromagnet (AFM) H = J1 ∑ i N =1 s0s i + J2HRs i describing a central spin which interacts with a surrounding medium hr. We present general relations for the eigen values, the eigen states and the spin correlation function and study the model in more detail for Hr being either a linear chain or a Lieb-Mattis AFM. Additional to the ground state properties we calculate the full thermodynamics in the case of Hr being a Lieb-Mattis AFM.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00752313
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