2-3 December 2019
Muse
Australia/Sydney timezone

Patterning topological insulators using ion beams

3 Dec 2019, 14:45
15m
Muse

Muse

18 Wally Way
Oral Emergent Physics Session 21

Speakers

Dr Cortie David (University of Wollongong) Zeljko Pastuovic (Centre for Accelerator Science of ANSTO)

Description

The surfaces of Sb2Te3 topological insulator crystals were implanted using a 40 keV chromium ion beam at the Centre for Accelerator Science, ANSTO. The resulting chemical structure was studied using atomic-resolution transmission electron microscopy and soft X-ray absorption spectroscopy. A thin magnetic crystalline region is formed near the surface. A uniform valence state of Cr3+ is detected, with no evidence of metallic clustering. Superparamagnetic behaviour was detected up to 300 K.

Travel Funding No
Do yo wish to take part in the poster slam No
Level of Expertise Experienced Researcher
Speakers Gender Male

Primary authors

Dr Cortie David (University of Wollongong) Dr Peter Evans (ANSTO) Zeljko Pastuovic (Centre for Accelerator Science of ANSTO) Dr Zengji Yue Mr Weiyao Zhao Dr Zhi Li Prof. Xiaolin Wang

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