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Determining the Fermi Surface of High-Temperature Superconductors and Other Low-Dimensional Materials
Date : Tuesday, April 17th, 2018 14:00 〜 Place : Seminar Room 4 (A614), 6th Floor, ISSP Lecturer : Assoc. Prof. Paul A. Goddard Affiliation : Warwick University, UK / Oxford University, UK Committee Chair : Yoshimitsu Kohama (ex.65337)

I will discuss recent magnetotransport data on an underdoped high-temperature superconductor. To assist with the discussion I will first describe how one goes about mapping the Fermi surface of quasi-two-dimensional materials using high magnetic field measurements, focussing particularly on the technique of angle-dependent magnetoresistance.

This will be illustrated using the results of earlier experiments on an organic superconductor, for which a full determination of the Fermi surface was possible.

I will then contrast this with the more challenging measurements performed onYBa2Cu3O6+x and explain what conclusions can be drawn in this case.

(Published on: Thursday March 29th, 2018)