Weber, Heidrun; Vojta, Matthias - In: The European Physical Journal B - Condensed Matter and … 53 (2006) 2, pp. 185-192
Motivated by impurity-induced magnetic ordering phenomena in spin-gap materials like TlCuCl<Subscript>3</Subscript>, we develop a mean-field theory for strongly disordered antiferromagnets, designed to capture the broad distribution of coupling constants in the effective model for the impurity degrees of freedom....</subscript>