Abstract
In2Se3 has potential as a phase-change material for memory applications. Understanding its phase diagram is important to achieve controlled switching between phases. Using x-ray diffraction and a diamond-anvil cell, the pressure-dependent structural properties of In2Se3 powder were studied at room temperature. α-In2Se3 transforms into the β phase at 0.7 GPa, an order of magnitude lower than phase-transition critical pressures in typical semiconductors. The β phase persists upon decompression to ambient pressure. Raman spectroscopy experiments confirm this result. The bulk moduli are reported and the c/a ratio for the β phase is shown to have a highly nonlinear dependence on pressure.
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Dates
Type | When |
---|---|
Created | 12 years, 6 months ago (Feb. 13, 2013, 6:14 p.m.) |
Deposited | 2 years, 2 months ago (June 17, 2023, 11 a.m.) |
Indexed | 1 month, 1 week ago (July 30, 2025, 6:59 a.m.) |
Issued | 12 years, 6 months ago (Feb. 11, 2013) |
Published | 12 years, 6 months ago (Feb. 11, 2013) |
Published Online | 12 years, 6 months ago (Feb. 13, 2013) |
Published Print | 12 years, 6 months ago (Feb. 11, 2013) |
Funders
2
U.S. Department of Energy
10.13039/100000015
Region: Americas
gov (National government)
Labels
8
- Energy Department
- Department of Energy
- United States Department of Energy
- ENERGY.GOV
- US Department of Energy
- USDOE
- DOE
- USADOE
Awards
2
- DE-AC02-05CH11231
- DE-FG02-07ER46386
National Science Foundation
10.13039/100000001
Region: Americas
gov (National government)
Labels
4
- U.S. National Science Foundation
- NSF
- US NSF
- USA NSF
Awards
1
- DMR-1206960
@article{Rasmussen_2013, title={Pressure-induced phase transformation of In2Se3}, volume={102}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4792313}, DOI={10.1063/1.4792313}, number={6}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Rasmussen, Anya M. and Teklemichael, Samuel T. and Mafi, Elham and Gu, Yi and McCluskey, Matthew D.}, year={2013}, month=feb }