Study of the ferroelectric phase transition in GeTe using time-domain THz spectroscopy

20111 citationsJournal Article

Authors

F. Kadlec · Czech Academy of Sciences

Christelle Kadlec · Czech Academy of Sciences, Institute of Physics

P. Kužel · Czech Academy of Sciences

Dominic Lencer · RWTH Aachen University

Peter Jost · RWTH Aachen University

Matthias Wuttig · RWTH Aachen University

Abstract

GeTe is a conducting ferroelectric with a very simple crystal lattice. Since decades, its phase transition was deemed displacive; recent evidence suggested an order-disorder type. High-temperature THz spectra of thin films reveal a new sub-THz excitation but no critical phonon softening is observed.

Topics & Keywords

Phase-change materials and chalcogenides Solid-state spectroscopy and crystallography Terahertz technology and applications

Publication Details

DOI: 10.1109/irmmw-thz.2011.6104783

Field-Weighted Citation Impact: 0.16

Command Palette

Study of the ferroelectric phase transition in GeTe using time-domain THz spectroscopy

Authors

Abstract

Topics & Keywords

Publication Details