Microscopic derivation of the Ginzburg-Landau equations for the periodic   Anderson model in the coexistence phase of superconductivity and   antiferromagnetism
  On the basis of the periodic Anderson model the microscopic Ginzburg-Landau equations for heavy-fermion superconductors in the coexistence phase of superconductivity and antiferromagnetism have been derived. The obtained expressions are valid in the vicinity of quantum critical point of heavy-fermion superconductors when the onset temperatures of antiferromagnetism and superconductivity are sufficiently close to each other. It is shown that the formation of antiferromagnetic ordering causes a decrease of the critical temperature of superconducting transition and order parameter in the phase of coexisting superconductivity and antiferromagnetism. 
Valery V. Val'kov, Anton O. Zlotnikov
cond-mat.supr-con cond-mat.str-el