Alladi Ramakrishnan Hall

Non-Fermi liquid behaviour due to Disorder in correlated Fermi liquids

N.S. Vidhyadhiraja

JNCASR, Bangalore

The interplay of disorder and interactions is a subject of great interest. In this talk we discuss the effect of disorder on the dynamics and transport properties of correlated Fermi liquids. A low frequency analysis in the concentrated and dilute limits shows that the dynamical local potentials arising through disorder averaging generate a linear (in frequency) term in the scattering rate. Such non-Fermi liquid behaviour present for any disorder concentration, is investigated in detail within dynamical mean field theory. Relevance of our findings to experiments on alloyed correlated systems is pointed out.