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cond-mat.str-el1999
Pseudogaps and Charge Band in the Parisi Solution of Insulating and Superconducting Electronic Spin Glasses at Arbitrary Fillings
R. Oppermann, H. Feldmann
We report progress in understanding the fermionic Ising spin glass with arbitrary filling. A crossover from a magnetically disordered single band phase via two intermediate bands j…
cond-mat.str-el1998
Metal-Insulator Transition in Randomly Interacting Systems
B. Rosenow, R. Oppermann
We discuss a metal-insulator transition caused by random couplings of magnetic moments in itinerant systems. An analytic solution for the single particle Green function is derived…