T
Takaya Nagai
Researcher at Hokkaido University
Publications - 77
Citations - 1626
Takaya Nagai is an academic researcher from Hokkaido University. The author has contributed to research in topics: Perovskite (structure) & Diamond anvil cell. The author has an hindex of 22, co-authored 77 publications receiving 1418 citations. Previous affiliations of Takaya Nagai include Osaka University & Central Glass and Ceramic Research Institute.
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Development of a Software Suite on X-ray Diffraction Experiments
TL;DR: In this article, two software, IPAnalyzer and PDIndexer, were developed to convert a two-dimensional Debye-ring pattern to one-dimensional (Bragg-Brentano) geometry.
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Permanent El Niño during the Pliocene warm period not supported by coral evidence
Tsuyoshi Watanabe,Atsushi Suzuki,Shoshiro Minobe,Tatsunori Kawashima,Koji Kameo,Kayo Minoshima,Yolanda M. Aguilar,Ryoji Wani,Hodaka Kawahata,Kohki Sowa,Takaya Nagai,Tomoki Kase +11 more
TL;DR: It is shown that permanent El Niño conditions did not exist during the Pliocene warm period, and coral-based analysis identifies climate variability at the temporal scale required to resolve ENSO structure firmly.
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Fate of carbonates within oceanic plates subducted to the lower mantle, and a possible mechanism of diamond formation
TL;DR: In this article, high-pressure and high-temperature experiments involving carbonates and silicates at 30-80 GPa and 1,600-3,200 K were conducted to simulate the decomposition process of carbonates contained within oceanic plates subducted into the lower mantle.
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Change in compressibility of δ-AlOOH and δ-AlOOD at high pressure: A study of isotope effect and hydrogen-bond symmetrization
Asami Sano-Furukawa,Asami Sano-Furukawa,Hiroyuki Kagi,Takaya Nagai,Satoshi Nakano,Satoshi Fukura,Daichi Ushijima,Riko Iizuka,Eiji Ohtani,Takehiko Yagi +9 more
TL;DR: In this paper, the authors investigated the compression properties of AlOOH and AlOOD under quasi-hydrostatic conditions at pressures up to 63.5 and 34.9 GPa, respectively.
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Compression mechanism of brucite: An investigation by structural refinement under pressure
TL;DR: In this article, the authors used Rietveld analysis to refine the unit cell parameters and atomic positions of the O atoms in Brucite, taking into account the effects of preferred orientation.