| 書(shū)目名稱 | Towards the Optical Control of Resonantly Bonded Materials |
| 副標(biāo)題 | An Ultrafast X-Ray S |
| 編輯 | Yijing Huang |
| 視頻video | http://file.papertrans.cn/928/927220/927220.mp4 |
| 概述 | Brings us closer to material control on demand using short light pulses.Introduces the reader to lattice dynamics.Reveals new insights into resonantly bonded materials |
| 叢書(shū)名稱 | Springer Theses |
| 圖書(shū)封面 |  |
| 描述 | .This thesis describes key contributions to the fundamental understanding of materials structure and dynamics from a microscopic perspective. In particular, the thesis reports several advancements in time-domain methodologies using ultrafast pulses from X-ray free-electron lasers (FEL) to probe the interactions between electrons and phonons in photoexcited materials. Using femtosecond time-resolved X-ray diffraction, the author quantifies the coherent atomic motion trajectory upon sudden excitation of carriers in SnSe. This allows the reconstruction of the nonequilibrium lattice structure and identification of a novel lattice instability towards a higher-symmetry structure not found in equilibrium. This is followed by an investigation of the excited-state phonon dispersion in SnSe using time-resolved X-ray diffuse scattering which enables important insight into how photoexcitation alters the strength of specific bonds leading to the novel lattice instability observed in X-ray diffraction. Finally, by combining ultrafast X-ray diffraction and ARPES, the author performs quantitative measurements of electron-phonon coupling in Bi2Te3 and Bi2Se3. The findings highlight the importance o |
| 出版日期 | Book 2023 |
| 關(guān)鍵詞 | Ultrafast X-ray scattering; X-ray free electron laser; time resolved X-ray scattering; lattice dynamics |
| 版次 | 1 |
| doi | https://doi.org/10.1007/978-3-031-42826-5 |
| isbn_softcover | 978-3-031-42828-9 |
| isbn_ebook | 978-3-031-42826-5Series ISSN 2190-5053 Series E-ISSN 2190-5061 |
| issn_series | 2190-5053 |
| copyright | The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl |
|Archiver|手機(jī)版|小黑屋|
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