Journal
PHYSICAL REVIEW LETTERS
Volume 89, Issue 28, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.89.287002
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Recent STM experiments on Bi2Sr2Ca2Cu3O10 observed sharp bound states associated with Zn and Ni impurities, as previously predicted theoretically. Here we extend the theory to the case of a finite concentration of impurities. Using the nonlocal coherent potential approximation, we show that the resonance peak both broadens and shifts as a function of impurity concentration.
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