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Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only Yazdani, Ali Vershinin, Michael 2015-09-25T20:02:49Z 2015-09-25T20:02:49Z 10000-01-01 2004 2004 The key results at 100 K are our observation of local electronic ordering below the pseudogap energy scale and our failure to observe any tell-tale signs of local superconductivity at Ni impurity sites in the pseudogap regime of a high-TC superconductor. The observation of electronic ordering in the pseudogap regime is a novel and indeed a highly unexpected result. The existence of such a phenomenon is likely to have substantial impact on our understanding of the pseudogap regime. Our tunneling spectroscopy observations at the Ni sites reveal a clear difference between the electronic states above and below TC. This is a novel result in its own right. It unambiguously shows that single electron spectroscopy can observe sharp differences between the various cuprate phases. This observation makes STM a valuable tool and holds the promise of using it to map out electronic states and phases across the entire phase diagram. Made available in DSpace on 2015-09-25T20:02:49Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3160962.pdf: 8021545 bytes, checksum: ca7dc4e73e439be59b6487b2bae05cee (MD5) Previous issue date: 2004 Embargo set by: Seth Robbins for item 81790 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs 148 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2004. http://hdl.handle.net/2142/80508 (MiAaPQ)AAI3160962 eng Physics, Condensed Matter Variable Temperature Scanning Tunneling Microscopy Study of a High Temperature Superconductor BSCCO text Physics Physics University of Illinois at Urbana-Champaign Dissertation Ph.D.