Hirotaka Uryu
;
Tsunetomo Yamada
;
Koichi Kitahara
;
Alok Singh
(National Institute for Materials Science)
;
Yutaka Iwasaki
(National Institute for Materials Science)
;
Kaoru Kimura
(National Institute for Materials Science)
;
Kanta Hiroki
;
Naoki Miyao
;
Asuka Ishikawa
;
Ryuji Tamura
;
Satoshi Ohhashi
;
Chang Liu
;
Ryo Yoshida
Description:
(abstract)Since the discovery of the quasicrystal, approximately 100 stable quasicrystalsare identified. To date, the existence of quasicrystals is verified usingtransmission electron microscopy; however, this technique requiressignificantly more elaboration than rapid and automatic powder X-raydiffraction. Therefore, to facilitate the search for novel quasicrystals,developing a rapid technique for phase-identification from powder diffractionpatterns is desirable. This paper reports the identification of a new Al–Si–Ruquasicrystal using deep learning technologies from multiphase powderpatterns, from which it is difficult to discriminate the presence ofquasicrystalline phases even for well-trained human experts. Deep neuralnetworks trained with artificially generated multiphase powder patternsdetermine the presence of quasicrystals with an accuracy >92% from actualpowder patterns. Specifically, 440 powder patterns are screened using thetrained classifier, from which the Al–Si–Ru quasicrystal is identified. Thisstudy demonstrates an excellent potential of deep learning to identify anunknown phase of a targeted structure from powder patterns even whenexisting in a multiphase sample.
Rights:
Keyword: deep learning, x-ray powder diffraction, quasicrystal, phase identification, machine learning
Date published: 2023-11-14
Publisher: Wiley
Journal:
Funding:
Manuscript type: Publisher's version (Version of record)
MDR DOI:
First published URL: https://doi.org/10.1002/advs.202304546
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Updated at: 2024-12-13 12:30:39 +0900
Published on MDR: 2024-12-13 12:30:39 +0900
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