Speaker
Martin Heinrich
(Paul Scherrer Institute)
Description
GeTe is a IV-VI semiconductor compound with existing applications in optoelectronics and thermoelectrics. In addition to ferroelectricity and a large Rashba spin splitting in GeTe, doping with Mn atoms introduces ferromagnetism, which makes Ge1-xMnxTe a magnetoelectric multiferroic with coupled electric and magnetic polarization and a promising candidate for spintronic applications.
In this project, we use synchrotron based photoelectron diffraction (XPD, PhD) and spectroscopy (XPS, ARPES) and scanning tunneling microscopy (STM, STS) to gain a detailed understanding of its surface atomic and electronic structure and the inherent multiferroic couplings.
Author
Martin Heinrich
(Paul Scherrer Institute)
Co-authors
Gunther Springholz
(Institut für Halbleiter-und Festkörperphysik, Johannes Kepler Universität, Linz, Austria)
Juraj Krempasky
(Photon Science Division, Paul Scherrer Institut, Villigen, Switzerland)
Dr
Matthias Muntwiler
(Paul Scherrer Institute)