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- Title
Nanoscale inhomogeneity and the evolution of correlation strength in FeSe1-xSx.
- Authors
Liu, Yu; Wang, Aifeng; Du, Qianheng; Wu, Lijun; Zhu, Yimei; Petrovic, Cedomir
- Abstract
We report a comprehensive study of the nanoscale inhomogeneity and disorder on the thermoelectric properties of FeSe 1 - x S x ( 0 ≤ x ≤ 1 ) single crystals and the evolution of correlation strength with S substitution. A hump-like feature in temperature-dependent thermpower is enhanced for x = 0.12 and 0.14 in the nematic region with increasing in orbital-selective electronic correlations, which is strongly suppressed across the nematic critical point and for higher S content. Nanoscale Se/S atom disorder in the tetrahedral surroundings of Fe atoms is confirmed by scanning transmission electron microscopy measurements, providing an insight into the nanostructural details and the evolution of correlation strength in FeSe 1 - x S x .
- Subjects
SCANNING transmission electron microscopy; THERMOELECTRIC materials; SINGLE crystals
- Publication
Nano Convergence, 2023, Vol 10, Issue 1, p1
- ISSN
2196-5404
- Publication type
Article
- DOI
10.1186/s40580-023-00405-2