Downloads: 132

Files in This Item:
File Description SizeFormat 
s41598-017-12216-7.pdf3.71 MBAdobe PDFView/Open
Title: Synchrotron radiation-based quasi-elastic scattering using time-domain interferometry with multi-line gamma rays
Authors: Saito, Makina  kyouindb  KAKEN_id  orcid (unconfirmed)
Masuda, Ryo
Yoda, Yoshitaka
Seto, Makoto  kyouindb  KAKEN_id
Author's alias: 齋藤, 真器名
増田, 亮
依田, 芳卓
瀬戸, 誠
Keywords: Characterization and analytical techniques
Phase transitions and critical phenomena
Issue Date: 2-Oct-2017
Publisher: Springer Nature
Journal title: Scientific Reports
Volume: 7
Thesis number: 12558
Abstract: We developed a multi-line time-domain interferometry (TDI) system using 14.4 keV Mössbauer gamma rays with natural energy widths of 4.66 neV from 57Fe nuclei excited using synchrotron radiation. Electron density fluctuations can be detected at unique lengths ranging from 0.1 nm to a few nm on time scales from several nanoseconds to the sub-microsecond order by quasi-elastic gamma-ray scattering (QGS) experiments using multi-line TDI. In this report, we generalize the established expression for a time spectrum measured using an identical single-line gamma-ray emitter pair to the case of a nonidentical pair of multi-line gamma-ray emitters by considering the finite energy width of the incident synchrotron radiation. The expression obtained illustrates the unique characteristics of multi-line TDI systems, where the finite incident energy width and use of a nonidentical emitter pair produces further information on faster sub-picosecond-scale dynamics in addition to the nanosecond dynamics; this was demonstrated experimentally. A normalized intermediate scattering function was extracted from the spectrum and its relaxation form was determined for a relaxation time of the order of 1 μs, even for relatively large momentum transfer of ~31 nm−1. The multi-line TDI method produces a microscopic relaxation picture more rapidly and accurately than conventional single-line TDI.
Description: 原子・分子の動きを1000万分の1秒単位でより詳細に観察する手法を開発. 京都大学プレスリリース. 2017-10-03.
Rights: © The Author(s) 2017. 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
DOI(Published Version): 10.1038/s41598-017-12216-7
PubMed ID: 28970499
Related Link:
Appears in Collections:Journal Articles

Show full item record

Export to RefWorks

Export Format: 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.