Abstract
The non-Fermi-liquid (NFL) behavior observed in the low temperature specific heat and magnetic susceptibility of many chemically substituted -electron systems is analyzed within the context of a recently developed theory based on Griffiths' singularities. Measurements of and in the systems , , and ( ) are found to be consistent with predicted by this model with in the NFL regime. These results suggest that the NFL properties observed in a wide variety of disordered -electron systems can be described within the context of a common physical picture.
- Received 9 February 1998
DOI:https://doi.org/10.1103/PhysRevLett.81.5620
©1998 American Physical Society