DOI: 10.1063/1.4881735. Ferroelectric switching in epitaxial GeTe films

Ferroelectric switching in epitaxial GeTe films

10.1063/1.4881735

Crossref journal-article

AIP Publishing

APL Materials (317)

Abstract

In this paper, using a resonance-enhanced piezoresponse force microscopy approach supported by density functional theory computer simulations, we have demonstrated the ferroelectric switching in epitaxial GeTe films. It has been shown that in films with thickness on the order of several nanometers reversible reorientation of polarization occurs due to swapping of the shorter and longer Ge-Te bonds in the interior of the material. It is also hinted that for ultra thin films consisting of just several atomic layers weakly bonded to the substrate, ferroelectric switching may proceed through exchange of Ge and Te planes within individual GeTe layers.

Bibliography

Kolobov, A. V., Kim, D. J., Giussani, A., Fons, P., Tominaga, J., Calarco, R., & Gruverman, A. (2014). Ferroelectric switching in epitaxial GeTe films. APL Materials, 2(6).

Authors 7

A. V. Kolobov (first)
D. J. Kim (additional)
A. Giussani (additional)
P. Fons (additional)
J. Tominaga (additional)
R. Calarco (additional)
A. Gruverman (additional)

References 30 Referenced 74

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10.1524/zkri.220.5.567.65075 / Z. Kristallogr. (2005)

Dates

Type	When
Created	11 years, 2 months ago (June 6, 2014, 8:30 p.m.)
Deposited	2 months, 3 weeks ago (May 29, 2025, 3:29 p.m.)
Indexed	2 weeks, 5 days ago (Aug. 2, 2025, 12:50 a.m.)
Issued	11 years, 2 months ago (June 1, 2014)
Published	11 years, 2 months ago (June 1, 2014)
Published Online	11 years, 2 months ago (June 6, 2014)
Published Print	11 years, 2 months ago (June 1, 2014)

Funders 1

National Science Foundation 10.13039/100000001
Region: Americas
gov (National government)
Labels4
1. U.S. National Science Foundation
2. NSF
3. US NSF
4. USA NSF
Awards1
1. 0820521

BibTeX

@article{Kolobov_2014, title={Ferroelectric switching in epitaxial GeTe films}, volume={2}, ISSN={2166-532X}, url={http://dx.doi.org/10.1063/1.4881735}, DOI={10.1063/1.4881735}, number={6}, journal={APL Materials}, publisher={AIP Publishing}, author={Kolobov, A. V. and Kim, D. J. and Giussani, A. and Fons, P. and Tominaga, J. and Calarco, R. and Gruverman, A.}, year={2014}, month=jun }

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