24-27 November 2022
Karlsruhe Institute of Technology
Europe/Berlin timezone

Phase-transition in MoTe2 tracked by time-of-flight momentum microscopy

26 Nov 2022, 16:00
2h
Foyer (KIT Campus South)

Foyer

KIT Campus South

KIT Campus map: https://www.kit.edu/campusplan/ Building: 30.22 Room: Foyer im 1. und 2. OG Address: Institute of Technology, Engesserstraße 7, 76131 Karlsruhe Coordinates: 49.01244, 8.41062

Speaker

Olena Fedchenko (JGU, Institut Für Physik)

Description

We have performed a comprehensive study of the temperature-induced phase-transition in transition metal dichalcogenide (TMDC) Mo1-XWXTe2 using ARPES, including linear and circular dichroism in the angular distribution (CDAD/LDAD), X-ray photoelectron diffraction (XPD) and spectroscopy (XPS) of the core-levels, Raman and X-ray diffraction (XRD) measurements at
different temperatures. Based on detailed structural information from XRD measurements,
calculations of XPD patterns were made using the Bloch-wave approach. It was found that the orthorhombic phase of MoTe2 shows inversion symmetry breaking and topological states and therefore has wide spectrum of potential applications.

Category Solid State (Experiment)

Primary author

Olena Fedchenko (JGU, Institut Für Physik)

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