Speaker
Prof.
Thomas Tybell
(Department of Electronic Systems, NTNU Norwegian University of Science and Technology)
Description
Perovskite oxides are technologically interesting because of their strong structure property coupling, with interesting functional properties ranging from ferromagnetism, ferroelectricity to high-temperature superconductivity. Here we will give an overview of our work on synthesis of atomically smooth (111)-oriented oxides, and discuss the effect of crystalline facet on their electronic properties. Of special interest are structural effects at epitaxial interfaces promoting novel functional properties, and we will discuss how the interplay between electronic correlations and structural reconstructions can result in emerging functional phases. We will emphasize how a combination of spin-polarized neutron reflectivity and XMCD/XMLD spectroscopy can be used to establish relationship between degree of reconstruction and interface properties. The experimental data will be compared to DFT calculations, including the effect of phonon-structure coupling due to epitaxial strain.
Phys. Rev. B. 95, 064109 (2017)
Phys. Rev. B 94, 201115 (2016)
Crystal Growth and Design 16, 2357 (2016)
APL Materials 3, 062501 (2015)
J. of Appl. Phys. 113, 183512 (2013)
Primary author
Prof.
Thomas Tybell
(Department of Electronic Systems, NTNU Norwegian University of Science and Technology)
Co-authors
Dr
Alex Grutter
(Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA)
Dr
Arenholz Elke
(Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA)
Dr
Hallsteinsen Ingrid
(Department of Electronic Systems, NTNU Norwegian University of Science and Technology, and Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA)
Mr
Moreau Moreau
(ingrid.g.hallsteinsen@ntnu.no)
Prof.
Selbach Sverre
(Department of Material Science and Engineering, NTNU—Norwegian University of Science and Technology)
