BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Electrons on the Magnetic Quantum Roundabout - Measuring Fermi Sur
 faces and Band Renormalisation in Correlated Materials - Dr Christoph Berg
 emann (Physics Department\, University of Cambridge)
DTSTART:20060605T101500Z
DTEND:20060605T111500Z
UID:TALK5030@talks.cam.ac.uk
CONTACT:Michael Sutherland
DESCRIPTION:While the dynamics of independent electrons are textbook knowl
 edge\,\nthe inclusion of electronic correlations adds a new degree of\ncom
 plexity that can lead to new and unexpected macroscopic\nbehaviour. Such n
 ovel phenomena are fundamentally interesting in their\nown right\, but som
 e can also be harnessed for device\napplications. Knowledge of the electro
 nic structure of correlated\nmaterials is pivotal to explaining their unus
 ual properties\, and in my\ntalk I will describe experiments that have est
 ablished the Fermi\nsurface and quantified the degree of band renormalisat
 ion of several\ncorrelated electron metals of recent interest. These showp
 iece\nexamples include the possible p-wave superconductor Sr2RuO4\, the\nm
 etamagnetic heavy fermion compound CeRu2Si2\, and Ag5Pb2O6 for which\nwe r
 ecently found the most spherical Fermi surface ever seen in any\nsupercond
 uctor. I will also describe how we plan to exploit recent\ntechnological a
 dvances - notably in silicon micromachining (MEMS) - to\npush the sensitiv
 ity limits under the very extreme conditions of the\nhighest magnetic fiel
 ds\, very low temperatures\, and high pressures.\n
LOCATION:Mott Seminar Room\, Cavendish Laboratory\, Department of Physics
END:VEVENT
END:VCALENDAR