Reduced effect of impurities on the universal pairing scale in the cuprates
نویسندگان
چکیده
A. B. Vorontsov,1 Ar. Abanov,2 M. G. Vavilov,3 and A. V. Chubukov3 1Department of Physics, Montana State University, Bozeman, Montana 59717, USA 2Department of Physics, Texas A&M University, College Station, Texas 77843, USA 3Department of Physics, University of Wisconsin, Madison, Wisconsin 53706, USA Received 24 September 2009; revised manuscript received 13 November 2009; published 29 January 2010
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Quasiparticle tunneling spectra of both hole-doped (p-type) and electron-doped (n-type) cuprates are studied using a low-temperature scanning tunneling microscope. The results reveal that neither the pairing symmetry nor the pseudogap phenomenon is universal among all cuprates, and that the response of n-type cuprates to quantum impurities is drastically different from that of the p-type cuprat...
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