Index Catalog // MDR

Description/Abstract:: Enhancement of energy resolution due to evolution of monochromators has made electron energy loss spectroscopy (EELS) in transmission ele...
Keyword:: 4D-STEM, ABF-STEM, EELS, GaN, HAADF-STEM, HAXPES, and defect
Resource Type:: Article
Author:: Shunsuke Yamashita, Sei Fukushima, Jun Kikkawa, Ryoji Arai, Yuya Kanitani, Koji Kimoto, and Yoshihiro Kudo
Journal:: APL Materials
Date Uploaded:: 19/03/2024

Description/Abstract:: Crystal structure of a γ-Ga2O3 layer grown epitaxially on an MgO substrate by a vapor phase transport method was investigated by transmis...
Keyword:: crystal structure and gamma-Ga2O3
Resource Type:: Article
Author:: Masanori Mitome, Shigemi Kohiki, Takuro Nagai, Keiji Kurashima, Koji Kimoto, and Yoshio Bando
Journal:: CRYSTAL GROWTH & DESIGN
Date Uploaded:: 05/03/2024

Description/Abstract:: Unsupervised machine learning techniques have been combined with scanning transmission electron microscopy (STEM) to enable comprehensive...
Keyword:: 4D-STEM, Hierachical Clustering, Metallic Glass, Non-negative Matrix Factorization, Scanning Transmission Electron Microscopy, and Unsupervised Machine Learning
Resource Type:: Article
Author:: Koji Kimoto, Jun Kikkawa, Koji Harano, Ovidiu Cretu, Yuki Shibazaki, and Fumihiko Uesugi
Journal:: Scientific Reports
Date Uploaded:: 15/02/2024

Description/Abstract:: The damage mechanism and exposure tolerance of epoxy resins to fast electrons remain unclear. We quantitatively investigated the effec...
Keyword:: electron energy loss spectroscopy, epoxy resin, fast electron damage, and π electron
Resource Type:: Article
Author:: Jun Kikkawa, Aoi Nii, Yoshiaki Sakaniwa, Naochika Kon, Marina Sakamaki, Touyou Ohashi, Nobuyasu Nita, Koji Harano, and Koji Kimoto
Journal:: JOURNAL OF CHEMICAL PHYSICS
Date Uploaded:: 01/12/2023
Date Modified:: 01/12/2023

Description/Abstract:: This letter reports a b-SiAlON:Eu2+ green phosphor with the composition of Eu0.00296Si0.41395Al0.01334O0.0044N0.56528. The phosphor powde...
Keyword:: LEDs, luminescence, oxynitride, and phosphor
Resource Type:: Article
Author:: Naoto Hirosaki, Rong-Jun Xie, Koji Kimoto, Takashi Sekiguchi, Yoshinobu Yamamoto, Takayuki Suehiro, and Mamoru Mitomo
Date Uploaded:: 28/04/2023

Description/Abstract:: The aberrations of the objective lens should be measured and adjusted to realize high spatial resolution in scanning transmission electro...
Keyword:: Aberration, Ronchigram, STEM, and alignment
Resource Type:: Article
Author:: Koji Kimoto and Kazuo Ishizuka
Journal:: Ultramicroscopy
Date Uploaded:: 02/08/2022
Date Modified:: 03/08/2022

Description/Abstract:: Scientific instruments for material characterization have recently been improved to yield big data. For instance, scanning transmission e...
Keyword:: electron microscopy, four-dimensional scanning transmission electron microscopy, and non-negative matrix factorization
Resource Type:: Article
Author:: Fumihiko Uesugi, Shogo Koshiya, Jun Kikkawa, Takuro Nagai, Kazutaka Mitsuishi, and Koji Kimoto
Journal:: Ultramicroscopy
Date Uploaded:: 02/08/2022
Date Modified:: 03/08/2022

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