Low Energy Electrodynamics in Solids 2012

Infrared ellipsometry studies of oxide-based heterostructures

24 Jul 2012, 08:30

25m

Chardonnay Ballroom (Embassy Suites Napa Valley)

Invited Transition Metal Oxides Transition Metal Oxides

Speaker

Christian Bernhard (Department of Physics and Fribourg Center for Nanomaterials, University of Fribourg)

Description

C. Bernhard Infrared ellipsometry studies of the electronic and structural properties of oxide-based heterostructures will be presented. As a first example, it is shown that this technique enables one to directly probe the mobility and the depth profile of the concentration of the confined electrons at the LaAlO3/SrTiO3 interface [1]. In addition, preliminary results on the electric field effect on the electronic and structural properties of the interfacial layer will be presented. [1] A. Dubroka et al., Phys. Rev. Lett. 104, 156807 (2010).