Abstract
Nano-Science Center, Niels Bohr Institute, University of Copenhagen,Universitetsparken 5, DK-2100 Copenhagen, DenmarkWe propose that the experimentally observed resistivity upturn of cuprates at low temperaturesmay be explained by properly accounting for the effects of disorder in a strongly correlated metallichost. Within a calculation of the DC conductivity using real-space diagonalization of a Hubbardmodel treated in an inhomogeneous unrestricted Hartree-Fock approximation, we find that corre-lations induce magnetic droplets around impurities, and give rise to additional magnetic scatteringwhich causes the resistivity upturn. A pseudogap in the density of states is shown to enhance boththe disorder-induced magnetic state and the resistivity upturns.(May 11, 2009)
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
