BEGIN:VCALENDAR
VERSION:2.0
METHOD:PUBLISH
CALSCALE:GREGORIAN
PRODID:-//WordPress - MECv6.4.2//EN
X-ORIGINAL-URL:https://www.lps.u-psud.fr/
X-WR-CALNAME:Laboratoire de physique des Solides
X-WR-CALDESC:
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-PUBLISHED-TTL:PT1H
X-MS-OLK-FORCEINSPECTOROPEN:TRUE
BEGIN:VEVENT
CLASS:PUBLIC
DTSTART;TZID=Europe/Paris:20230202T110000
DTEND;TZID=Europe/Paris:20230202T120000
DTSTAMP:20230124T222700
UID:MEC-11d867796d85db8cad5280ac44cec7c1@lps.u-psud.fr
CREATED:20230124
LAST-MODIFIED:20230124
PRIORITY:5
TRANSP:OPAQUE
SUMMARY:J.KNOLLE: Anomalous Quantum Oscillations in Metals and Insulators
DESCRIPTION:\n	Quantum oscillation phenomena describe the periodic variation of thermodynamic and transport properties of materials as a function of magnetic field. Their observation is commonly assumed to be a definite sign for the presence of a Fermi surface (FS) in metals. Indeed, the effect forms the basis of a well-established experimental procedure for accurately measuring FS topology and geometry of metallic systems, with parameters commonly extracted by fitting to the Onsager and Lifshitz-Kosevich (LK) theories based on Fermi liquid theory.\n\nI will discuss recent experimental and theoretical developments which challenge the canonical description of quantum oscillations. I will first review our work on quantum oscillations in insulators. Second, I will discuss the possibility of sharp quantum oscillation frequencies in metals which do not correspond to Fermi surface orbits. Finally, I will present a rigorous example of how inter-Landau level interactions in doped Mott insulators can lead to aperiodic quantum oscillations and unusual mass renormalisations. \n\n
URL:https://www.lps.u-psud.fr/en/events/j-knolle-anomalous-quantum-oscillations-in-metals-and-insulators/
CATEGORIES:Condensed Matter Theory Seminar
END:VEVENT
END:VCALENDAR