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UID:69df317c476cf
DTSTAMP:20260415T023436
DTSTART:20141027T113000
SEQUENCE:0
TRANSP:OPAQUE
DTEND:20141027T123000
URL:https://murmitoyen.com/events/vanille/udem/detail/486838
LOCATION:Université de Montréal - Pavillon J.-Armand-Bombardier\, 5155\, 
 chemin de la rampe \, Montréal\, QC\, Canada\, H3T 2B2
SUMMARY:Quantum oscillations\, fermiology\, and Berry phase in cuprate high
 -temperature superconductors – Nicolas Doiron-Leyraud\, UdeS
DESCRIPTION:Nicolas Doiron-Leyraud\, Département de physique\, Universit
 é de Sherbrooke\, Sherbrooke\, QC\, Canada.Under the influence of a magne
 tic field\, electrons in solids perform cyclotron orbits along quantized L
 andau levels. A key manifestation of this phenomenon is the appearance of 
 quantum oscillations in transport and thermodynamic properties\, which dir
 ectly relate to the fundamental electronic ground state of a given materia
 l\, providing for instance the carrier mass and the Fermi surface topology
 . Moreover\, the phase of the oscillations allows a direct measurement of 
 the geometrical Berry phase\, an essential characteristic of condensed mat
 ter systems. For these reasons\, quantum oscillations have been a central 
 probe in the study of a wide range of materials\, from heavy fermions supe
 rconductors to quantum Hall devices. In recent years\, the observation of 
 quantum oscillations in high-temperature superconductors has opened up a m
 ajor novel window of investigation\, which I will discuss in the light of 
 our recent measurements carried out using very high magnetic fields.Site w
 eb du groupe du Prof. Doiron-LeyraudCette conférence est présentée par
  le RQMP Versant Nord du Département de physique de l'Université de Mon
 tréal et le Département de génie physique de Polytechnique Montréal.
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