Abstract
We investigated the crystallographic structure of FePS3 with a layered structure using transmission electron microscopy and powder X-ray diffraction. We found that FePS3 forms a rotational twin structure with the common axis along the c*-axis. The high-resolution transmission electron microscopy images revealed that the twin boundaries were positioned at the van der Waals gaps between the layers. The narrow bands of dark contrast were observed in the bright-field transmission electron microscopy images below the antiferromagnetic transition temperature, TN ≈ 120 K. Low-temperature X-ray diffraction showed a lattice distortion; the a- and b-axes shortened and lengthened, respectively, as the temperature decreased below TN. We propose that the narrow bands of dark contrast observed in the bright-field transmission electron microscopy images are caused by the directional lattice distortion with respect to each micro-twin variant in the antiferromagnetic phase.
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Dates
Type | When |
---|---|
Created | 8 years, 11 months ago (Aug. 31, 2016, 1:31 p.m.) |
Deposited | 2 years, 1 month ago (July 14, 2023, 5:01 p.m.) |
Indexed | 2 days, 6 hours ago (Aug. 19, 2025, 7:08 a.m.) |
Issued | 8 years, 11 months ago (Aug. 31, 2016) |
Published | 8 years, 11 months ago (Aug. 31, 2016) |
Published Online | 8 years, 11 months ago (Aug. 31, 2016) |
Published Print | 8 years, 10 months ago (Oct. 14, 2016) |
Funders
1
Japan Society for the Promotion of Science
10.13039/501100001691
Region: Asia
gov (National government)
Labels
6
- KAKENHI
- 日本学術振興会
- Gakushin
- JSPS KAKEN
- JSPS Grants-in-Aid for Scientific Research
- JSPS
Awards
2
- 16K05443
- 25400365
@article{Murayama_2016, title={Crystallographic features related to a van der Waals coupling in the layered chalcogenide FePS3}, volume={120}, ISSN={1089-7550}, url={http://dx.doi.org/10.1063/1.4961712}, DOI={10.1063/1.4961712}, number={14}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Murayama, Chisato and Okabe, Momoko and Urushihara, Daisuke and Asaka, Toru and Fukuda, Koichiro and Isobe, Masahiko and Yamamoto, Kazuo and Matsushita, Yoshitaka}, year={2016}, month=aug }