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Frustrated charge order and cooperative distortions in ScV6 Sn6
- Title
- Frustrated charge order and cooperative distortions in ScV6 Sn6
- Authors
- Pokharel; Ganesh; Ortiz; Brenden R.; Kautzsch; Linus; Alvarado Gomez; S.J.; Mallayya; Krishnanand; Wu; Guang; Kim; Eun-Ah; Ruff; Jacob P. C.; Sarker; Suchismita; Wilson; Stephen D.
- Ewha Authors
- 김은아
- SCOPUS Author ID
- 김은아
- Issue Date
- 2023
- Journal Title
- Physical Review Materials
- ISSN
- 2475-9953
- Citation
- Physical Review Materials vol. 7, no. 10
- Publisher
- American Physical Society
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Here we study the stability of charge order in the kagome metal ScV6Sn6. Synchrotron x-ray diffraction measurements reveal high-temperature, short-range charge correlations at the wave vectors along q=(13,13,12) whose interlayer correlation lengths diverge upon cooling. At the charge order transition, this divergence is interrupted, and long-range order freezes in along q=(13,13,13), as previously reported, while disorder enables the charge correlations to persist at the q=(13,13,12) wave vector down to the lowest temperatures measured. Both short-range and long-range charge correlations seemingly arise from the same instability and both are rapidly quenched upon the introduction of larger Y ions onto the Sc sites. Our results validate the theoretical prediction of the primary lattice instability at q=(13,13,12), and we present a heuristic picture for viewing the frustration of charge order in this compound. © 2023 American Physical Society.
- DOI
- 10.1103/PhysRevMaterials.7.104201
- Appears in Collections:
- 공과대학 > 환경공학과 > Journal papers
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