Electronic Origin of the Inhomogenous Pairing Interaction in Cuprates
Friday, April 11, 2008
We investigate the source of the variation of the pairing strength in high-Tc superconductors. We have developed a new technique that allows us to study the same nanoscale region of the material...
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The Atomic Scale Formation of Pairs in High-Tc Superconductors
Thursday, May 31, 2007
We take an atom-by-atom look at where pairing gaps form in the cuprate superconductor BSCCO. When pairing occurs in a superconductor, a gap forms in the density of states (DOS) that can be probed by...
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Spintronics at the Atomic Scale — A Positive Spin on GaGa Semiconductors
Thursday, July 27, 2006
A novel technique developed by our group uses a scanning tunneling microscope (STM) to substitute atoms into a semiconductor one atom at a time. This technique has been used to assemble a magnetic...
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Uncovering the Electronic States of the Pseudogap
Thursday, February 12, 2004
We performed a scanning tunneling spectrocopy characterization of the electronic correlations in the pseudogap state in a high-Tc superconductor. Heating a normal superconductor above its critical...
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Imaging the Cu-O Plane in Cuprate Superconductors
Thursday, August 1, 2002
Using a scanning tunneling microscope, we demonstrated that a single copper-oxide plane can form a stable layer at the superconductor's surface. This plane behaves differently when exposed at the...
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Nanotube Peapods
Friday, February 1, 2002
Scientists recently discovered that nanoscopic peapods – the latest class of nanomaterials created by filling the cores of single-wall nanotubes – have tunable electronic properties. Our measurements show that encapsulation...
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