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Condensed Matter Seminars

ics Condensed Matter
Thursday, February 26, 2004
4:00 PM
Physics Building, Room 204
Note special time.
Note special room.
Vladimir Butko [Host: Jongsoo Yoon]
Los Alamos
"Nanoscopic Transport in the Ultrathin Metal Films and Molecular Organic Crystals"
ABSTRACT:
A description of the properties of low dimensional electron gases remains one of the most important and challenging problems in condensed matter physics. I will present electron transport and tunneling measurements on ultrathin, metal films. I will show that in the strong disorder limit a gap emerges in the density of states that is solely attributable to fundamental many body electron-electron interaction effects, i.e. the Coulomb gap. Interestingly, a quantum metal state can be realized, in otherwise highly insulating films, by suppressing the Coulomb gap via a magnetic field. In the second part of my talk I will describe ongoing research into the properties of the two dimensional electron gas of Field Effect Transistors (FETs) fabricated on high quality organic molecular single crystals. Practical applications of the molecular organic materials, such as flexible, large-area electronic devices will also be discussed.

To add a speaker, send an email to phys-speakers@Virginia.EDU. Please include the seminar type (e.g. Condensed Matter Seminars), date, name of the speaker, title of talk, and an abstract (if available).