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IBS Publications RepositoryCenter for Correlated Electron Systems(강상관계 물질 연구단)1. Journal Papers (저널논문)
Evidence of structural evolution in Sr2RhO4 studied by time-resolved optical reflectivity spectroscopy
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- Title
- Evidence of structural evolution in Sr2RhO4 studied by time-resolved optical reflectivity spectroscopy
- Author(s)
- Min-Cheol Lee; Inho Kwak; Choong H. Kim; Bumjoo Lee; Byung Cheol Park; Junyoung Kwon; Wonshik Kyung; Changyoung Kim; Tae Won Noh; Kyungwan Kim
- Publication Date
- 2019-12
- Journal
- PHYSICAL REVIEW B, v.100, no.23, pp.235139
- Publisher
- AMER PHYSICAL SOC
- Abstract
- We investigate ultrafast dynamics from photoinduced reflectivity of Sr2RhO4 by using femtosecond near-infrared pulses. We observe a clear temperature dependent anomaly in its electronic dynamics which slows down below T-S similar to 160 K. In addition, coherent oscillations of the 5.3 THz A(1g) phonon exhibit a 90 degrees. shift in its initial phase across TS, indicating a structural change in octahedral rotation distortions. We propose that octahedral structure in Sr2RhO4 evolves around T-S, and it can influence the nonequilibrium dynamics of photo-induced carriers as well as realtime phonon responses. ©2019 American Physical Society
- ISSN
- 2469-9950
- Appears in Collections:
- Center for Correlated Electron Systems(강상관계 물질 연구단) > 1. Journal Papers (저널논문)
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