Date/Time Date(s) - 31/01/20053:00 pm - 4:00 pm
Title: On fluctuation diamagnetism and pseudogap of high temperature superconductors
Speaker: Dr. Vadim Oganesyan
Institute:
Location: ABB 165
Description:
High temperature superconductivity in the cuprates is a major puzzle in the theory of condensed matter. One of the key questions concerns the nature of the so-called pseudogap region in their phase diagrams. In this talk I will review the issues here and focus on incipient superconductivity as an explanation for the pseudogap. I will describe work on detecting such superconductivity via diamagnetism, motivated by recent measurements in the cuprates by the Ong group at Princeton. I will show an analysis of the diamagnetic response near the celebrated Kosterlitz-Thouless transition provides a coherent explanation of data on the highly two dimensional cuprate BSSCO2212.