A variational study of superconducting correlations within periodic Anderson model

Abstract: In this work we present the study of heavy fermion (HF) systems represented by the extended periodic Anderson model (PAM). A term, which contains the superconducting correlations, has been included in the conventional PAM. The study has been carried out at finite U. We have used the variational method. The variational wavefunction contains two variational parameters and . We have found that both the variational parameters are mutually dependent. We have studied ground state as well as finite temperature properties. We have found that increases, as J increases. [Copyright &y& Elsevier]

Copyright of Physica B is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)