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Journal article
Photon-induced selenium migration in TiSe2
Applied physics letters, v 110(8)
20 Feb 2017
Abstract
TiSe2 is a member of the transition metal dichalcogenide family of layered van der Waals materials that exhibits some distinct electronic and optical properties. Here, we perform the Raman spectroscopy and microscopy studies on single crystal TiSe2 to investigate the thermal and photon-induced defects associated with the diffusion of selenium to the surface. Additional phonon peaks near 250 cm(-1) are observed in the laser-irradiated regions that are consistent with the formation of amorphous and nanocrystalline selenium on the surface. Temperature dependent studies of the threshold temperature and laser intensity necessary to initiate selenium migration to the surface show an activation barrier for the process of 1.55 eV. The impact of these results on the properties of strongly correlated electron states in TiSe2 is discussed. Published by AIP Publishing.
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Details
- Title
- Photon-induced selenium migration in TiSe2
- Creators
- David B. Lioi - Drexel UniversityDavid J. Gosztola - Argonne National LaboratoryGary P. Wiederrecht - Argonne National LaboratoryGoran Karapetrov - Drexel UniversityArgonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
- Publication Details
- Applied physics letters, v 110(8)
- Publisher
- American Institute of Physics
- Number of pages
- 4
- Grant note
- 1408151 / Directorate For Engineering; National Science Foundation (NSF); NSF - Directorate for Engineering (ENG) DE-AC02-06CH11357 / U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences; United States Department of Energy (DOE) 01-682 / Ministry of Science of Montenegro ECCS-1408151 / National Science Foundation; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000394762600015
- Scopus ID
- 2-s2.0-85013455998
- Other Identifier
- 991019168988204721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Physics, Applied