Multiferroic Phase Transitions and Spin-Texture in Mn- and Cr-Doped GeTe
Sprache der Bezeichnung:
Englisch
Original Kurzfassung:
Multiferroics in which ferroelectricity and ferromagnetism coexist exhibit many extraordinary physical properties
due to their peculiar spinpolarized
electronic band structure and provide promising potentials for device
applications. Magnetically doped GeTe is a prototypical example of a multiferroic system in which the strong
spinorbit
coupling leads to a giant RashbaZeeman
splitting. In this project, ARPES and SARPES will be
employed to unravel the evolution of the electronic structure and spin texture of Mnand
Crdoped
GeTe across
the ferromagnetic and ferroelectric phase transition and derive how the RashbaZeeman
splitting depends and
can be tuned by the magnetic dopant concentration. Particular focus will be to compare the effect of the different
doping species and to extend the studies to high magnetic dopant concentrations where high ferromagnetic
Curie temperatures are obtained.
Forschungs-