Masato Matsuura

Sluggish phase-transition kinetics and extended critical correlations in relaxor ferroelectrics

Masato Matsuura, Kenji Ohwada, Shinya Tsukada, Akihiko Machida et autres

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Observation of the Structure and Dynamics of Water in Aqueous Alkaline Chloride Solutions under Gigapascal Pressure by Neutron Scattering

Zhuanfang Jing, Toshio Yamaguchi, Takanori Hattori, Takeshi Yamada et autres

Water in aqueous salt solutions under gigapascal pressure plays a pivotal role in geoscience, protein technology, and planetary science. However, little direct experimental observation of the water structure and dynamics in alkaline chloride solutions at gigapascal pressures is available. Here, we show, …

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Commissioning of a Compact High-Temperature Furnace for the BL02-DNA Spectrometer

Takeshi Yamada, Keiichi Ohuchi, Masato Matsuura, Taiki Tominaga et autres

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Observation of the structure and dynamics of water in aqueous alkaline chloride solutions under gigapascal pressure by neutron scattering

Jing Zhuanfang, Toshio Yamaguchi, Takanori Hattori, Takeshi Yamada et autres

Water in aqueous salt solutions under gigapascal pressure plays a pivotal role in geoscience, protein technology, and planetary science. However, little direct experimental observation on the water structure and dynamics in alkaline chloride solutions at gigapascal pressures is available. Here, we show, …

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Zr-based bulk metallic glass clamp cell for high-pressure inelastic neutron scattering

Shohei Hayashida, Takeshi Wada, M. Ishikado, Koji Munakata et autres

We report the fabrication and characterization of a Zr-based bulk metallic glass (Zr-BMG) clamp cell designed for high-pressure inelastic neutron scattering (INS) measurements. The INS spectra of the empty cell exhibit broad and featureless backgrounds, reflecting the amorphous structure of the Zr-BMG. …

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Mechanism of Hydride-Ion Diffusion in the Oxyhydride of Barium Titanate

Rasmus Lavén, Lucas Fine, Elena Naumovska, Hua Jun Guo et autres

High Resolution Image Download MS PowerPoint Slide Perovskite-type oxyhydrides stand out as hydride-ion conductors of relevance for diverse technological applications, but fundamental questions surrounding the relationship between the mechanism of hydride-ion diffusion and the local structure of these materials remain to be …

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Frustrated spin-1/2 chains in a correlated metal

Xiyang Li, Alberto Nocera, Kateryna Foyevtsova, G. A. Sawatzky et autres

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Remote Neutron Scattering Experiment at ILL

Masato Matsuura

We conducted inelastic neutron scattering experiments on the dimer-Mott insulator κ-(BEDT-TTF)2Cu2(CN)3 remotely at ILL (IN8) due to COVID-19. The remote experiments utilized the VISA platform and NOMAD-remote for data access and control. Although remote experiments can be efficient, on-site experiments would remain …

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Frustrated S = 1/2 Chains in One-Dimensional Correlated Metal Ti4MnBi2

Xiyang Li, Alberto Nocera, Kateryna Foyevtsova, G. A. Sawatzky et autres

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How Ions and Pressure Affect Water Structure and Dynamics?

Yongquan Zhou, Zhuanfang Jing, Toshio Yamaguchi, Takanori Hattori et autres

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Singular Continuous and Nonreciprocal Phonons in Quasicrystal AlPdMn

Masato Matsuura, Jinjia Zhang, Yasushi Kamimura, Maiko Kofu et autres

In quasicrystals lacking translational symmetry but having highly ordered structures, understanding how phonons propagate in their aperiodic lattices remains an unsolved issue. We present an inelastic neutron scattering study on acoustic phonon modes of icosahedral quasicrystal AlPdMn, revealing hierarchical pseudo-gap structure in …

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Quasielastic neutron scattering probing H− dynamics in the H− conductors LaH3−2xOx

Hiromu Tamatsukuri, Keiga Fukui, Soshi Iimura, Takashi Honda et autres

Using an incoherent quasielastic neutron scattering (QENS) technique, we investigate ${\mathrm{H}}^{\ensuremath{-}}$ dynamics in a series of oxyhydrides $\mathrm{La}{\mathrm{H}}_{3\ensuremath{-}2x}{\mathrm{O}}_{x}$ that exhibit characteristic high ${\mathrm{H}}^{\ensuremath{-}}$ conductivity. In the end member $\mathrm{La}{\mathrm{H}}_{3}$ ($x$ = 0), two kinds of ${\mathrm{H}}^{\ensuremath{-}}$ dynamics are identified: the jump diffusion …

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