Burnett, A.D. orcid.org/0000-0003-2175-1893, Kendrick, J., Knox, C.S. et al. (7 more authors) (2023) Exploring dynamics, disorder, and anharmonicity in THz spectra of crystalline materials. In: Proceedings of the SPIE Optics + Photonics 2023. SPIE - Optics and Photonics, 20-24 Aug 2023, San Diego, USA. SPIE , Bellingham, Washington USA .
Abstract
Terahertz spectral measurements of crystalline materials are known to be particularly sensitive to both the material’s long-range order and lattice dynamics. Here we explore a range of materials including common crystalline organic materials such as α-lactose monohydrate and l-cysteine through to engineered materials including topological insulators (Bi2(Te(1−x)Sex)3) where structure and disorder can be more finely controlled. By comparing variable temperature THz spectral measurements to ab-initio simulations using a range of methods and structures we can begin to unpick the origins of these spectra, and how they are influenced by dynamics and disorder across the lattice.
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Copyright, Publisher and Additional Information: | This is an author produced version of a conference paper accepted for publication in Proceedings of the SPIE Optics + Photonics 2023, made available under the terms of the Creative Commons Attribution License (CC-BY), which permits unrestricted use, distribution and reproduction in any medium, provided the original work is properly cited. | ||||
Keywords: | Terahertz radiation, Phonons, Crystals, Bismuth, Selenium, Tellurium, Temperature metrology, Alloys, Molecular spectroscopy, Terahertz spectroscopy | ||||
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Institution: | The University of Leeds | ||||
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Physical Chemistry (Leeds) | ||||
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Depositing User: | Symplectic Publications | ||||
Date Deposited: | 18 Sep 2023 12:49 | ||||
Last Modified: | 19 Dec 2023 10:30 | ||||
Published Version: | https://www.spiedigitallibrary.org/conference-proc... | ||||
Status: | Published | ||||
Publisher: | SPIE | ||||
Identification Number: | https://doi.org/10.1117/12.2681358 | ||||
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