Multiple-wavelength neutron holography with pulsed neutrons

Kouichi Hayashi, Kenji Ohoyama, Naohisa Happo, Tomohiro Matsushita, Shinya Hosokawa, Masahide Harada, Yasuhiro Inamura, Hiroaki Nitani, Toetsu Shishido, Kunio Yubuta

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Local structures around impurities in solids provide important information for understanding the mechanisms of material functions, because most of them are controlled by dopants. For this purpose, the x-ray absorption fine structure method, which provides radial distribution functions around specific elements, is most widely used. However, a similarmethod using neutron techniques has not yet been developed. If one can establish amethod of local structural analysis with neutrons, then a new frontier ofmaterials science can be explored owing to the specific nature of neutron scattering-that is, its high sensitivity to light elements andmagneticmoments. Multiple-wavelength neutron holography using the time-of-flight technique with pulsed neutrons has great potential to realize this. We demonstrated multiple-wavelength neutron holography using a Eu-doped CaF2 single crystal and obtained a clear three-dimensional atomic image around trivalent Eu substituted for divalent Ca, revealing an interesting feature of the local structure that allows it tomaintain charge neutrality. The newholography technique is expected to provide new information on local structures using the neutron technique.

Original languageEnglish
Article numbere1700294
JournalScience Advances
Volume3
Issue number8
DOIs
Publication statusPublished - Aug 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General

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