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08.10.2008. :: Insights into puzzling materials using the infrared Hall effect

 
S E M I N A R FIZICKOG FAKULTETA
Studentski trg 12, Beograd

Insights into puzzling materials using the infrared Hall effect

Professor John Cerne
SUNY, Buffalo, New York

Seminar ce se odrzati u sredu 8. oktobra 2008. godine u 13:00 casova u fizickom amfiteatru (sala 661), III sprat.

Abstract: Strongly correlated materials ranging from diluted magnetic semiconductors (DMS) to transition-metal oxides, such as ruthenate perovskite (RP) compounds and high temperature superconductor cuprates (HTSC), are revolutionizing fundamental concepts in condensed matter physics and show great potential for applications to spin-based electronics and multifunctional devices. These materials exhibit unusual properties, such as carrier-mediated magnetism, metamagnetism, quantum criticality and non-Fermi liquid behavior that continue to challenge the condensed matter community. Despite the wide range of properties exhibited by these materials, they all exhibit anomalous behavior in dc Hall effect measurements. In this talk I will discuss why one should and how one can explore the Hall effect as a function of frequency using infrared magneto-polarimetry. Recent results on RP, DMS and HTSC materials will be presented and compared with theoretical predictions.

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