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Detecting Crystallographic Lattice Chirality using Resonant Inelastic X-ray Scattering

The control and detection of crystallographic chirality is an important and challenging scientific problem. Chirality has wide ranging implications from medical physics to cosmology including an intimate but subtle connection in magnetic systems, for example Mn(1−x)Fe(x)Si. X-ray diffraction techniq...

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Autores principales: Mongan, Sean, Huang, Zengye, Datta, Trinanjan, Nomura, Takuji, Yao, Dao-Xin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6726621/
https://www.ncbi.nlm.nih.gov/pubmed/31484987
http://dx.doi.org/10.1038/s41598-019-49157-2
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author Mongan, Sean
Huang, Zengye
Datta, Trinanjan
Nomura, Takuji
Yao, Dao-Xin
author_facet Mongan, Sean
Huang, Zengye
Datta, Trinanjan
Nomura, Takuji
Yao, Dao-Xin
author_sort Mongan, Sean
collection PubMed
description The control and detection of crystallographic chirality is an important and challenging scientific problem. Chirality has wide ranging implications from medical physics to cosmology including an intimate but subtle connection in magnetic systems, for example Mn(1−x)Fe(x)Si. X-ray diffraction techniques with resonant or polarized variations of the experimental setup are currently utilized to characterize lattice chirality. We demonstrate using theoretical calculations the feasibility of indirect K –edge bimagnon resonant inelastic X-ray scattering (RIXS) spectrum as a viable experimental technique to distinguish crystallographic handedness. We apply spin wave theory to the recently discovered √5 × √5 vacancy ordered chalcogenide Rb(0.89)Fe(1.58)Se(2) for realistic X-ray experimental set up parameters (incoming energy, polarization, Bragg angle, and experimental resolution) to show that the computed RIXS spectrum is sensitive to the underlying handedness (right or left) of the lattice. A Flack parameter definition that incorporates the right- and left- chiral lattice RIXS response is introduced. It is shown that the RIXS response of the multiband magnon system RbFeSe arises both from inter- and intra- band scattering processes. The extinction or survival of these RIXS peaks are sensitive to the underlying chiral lattice orientation. This in turn allows for the identification of the two chiral lattice orientations.
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spelling pubmed-67266212019-09-18 Detecting Crystallographic Lattice Chirality using Resonant Inelastic X-ray Scattering Mongan, Sean Huang, Zengye Datta, Trinanjan Nomura, Takuji Yao, Dao-Xin Sci Rep Article The control and detection of crystallographic chirality is an important and challenging scientific problem. Chirality has wide ranging implications from medical physics to cosmology including an intimate but subtle connection in magnetic systems, for example Mn(1−x)Fe(x)Si. X-ray diffraction techniques with resonant or polarized variations of the experimental setup are currently utilized to characterize lattice chirality. We demonstrate using theoretical calculations the feasibility of indirect K –edge bimagnon resonant inelastic X-ray scattering (RIXS) spectrum as a viable experimental technique to distinguish crystallographic handedness. We apply spin wave theory to the recently discovered √5 × √5 vacancy ordered chalcogenide Rb(0.89)Fe(1.58)Se(2) for realistic X-ray experimental set up parameters (incoming energy, polarization, Bragg angle, and experimental resolution) to show that the computed RIXS spectrum is sensitive to the underlying handedness (right or left) of the lattice. A Flack parameter definition that incorporates the right- and left- chiral lattice RIXS response is introduced. It is shown that the RIXS response of the multiband magnon system RbFeSe arises both from inter- and intra- band scattering processes. The extinction or survival of these RIXS peaks are sensitive to the underlying chiral lattice orientation. This in turn allows for the identification of the two chiral lattice orientations. Nature Publishing Group UK 2019-09-04 /pmc/articles/PMC6726621/ /pubmed/31484987 http://dx.doi.org/10.1038/s41598-019-49157-2 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Mongan, Sean
Huang, Zengye
Datta, Trinanjan
Nomura, Takuji
Yao, Dao-Xin
Detecting Crystallographic Lattice Chirality using Resonant Inelastic X-ray Scattering
title Detecting Crystallographic Lattice Chirality using Resonant Inelastic X-ray Scattering
title_full Detecting Crystallographic Lattice Chirality using Resonant Inelastic X-ray Scattering
title_fullStr Detecting Crystallographic Lattice Chirality using Resonant Inelastic X-ray Scattering
title_full_unstemmed Detecting Crystallographic Lattice Chirality using Resonant Inelastic X-ray Scattering
title_short Detecting Crystallographic Lattice Chirality using Resonant Inelastic X-ray Scattering
title_sort detecting crystallographic lattice chirality using resonant inelastic x-ray scattering
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6726621/
https://www.ncbi.nlm.nih.gov/pubmed/31484987
http://dx.doi.org/10.1038/s41598-019-49157-2
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