Philip Willmott (SIMES Seminar)

Date(s) - May 29 2015
11:00 AM - 12:00 PM

Shasta Room, Bldg. 40, Room 361


Structural studies of oxide interfaces

 Prof. Philip Willmott

Paul Scherrer Institut, Villigen, Switzerland


Since the discovery of high-temperature superconductivity in the cuprates in the eighties, complex metal oxides have provided an abundant chemical playground for physicists and materials scientists, resulting in, among others, colossal magnetoresistance, multiferroicity, spintronic materials, and low-dimensional conductivity. A common theme in all these phenomena is their high sensitivity to structural changes, which can fundamentally influence their physical properties. Synchrotron-based surface x-ray diffraction (SXRD) is unique in its capability to nondestructively determine interfacial and surface structures with unsurpassed accuracy, thus shedding light on the intricate interplay between structure and physical response. In this talk, I will present the role played by SXRD in understanding the physics of oxide heterostructure, with particular reference to the intensively studied conducting interface between LaAlO3 and SrTiO3.