Yoshiaki Ito

Kyoto University

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Sei Fukushima

Kobe Material Testing Laboratory (Japan)

Takeshi Mukoyama

Kyoto University

Aurel Vlaicu

National Institute of Materials Physics

Shinzo Yoshikado

Doshisha University

T. Tochio

Kobe University

I. Hirabayashi

International Superconductivity Technology Center

Tatsunori Tochio

Kobe University

Yoshiaki Takai

Hokkaido University

S. Fukao

Kyoto Bunkyo University

H. Oohashi

National Institute for Materials Science

Cooperative Institutions

Tohoku University

148

Kyoto University

144

The University of Tokyo

132

Osaka University

Nagoya University

Japan Science and Technology Agency

SPring-8

Tokyo Institute of Technology

Kyoto University Institute for Chemical Research

Okayama University

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Proceedings of the 1st International Discussion Meeting on Superionic Conductor Physics

Science of Computer Programming (2007)

Junichi Kawamura Shinzo Yoshikado Takashi Sakuma Yoshitaka Michihiro Masaru Aniya

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High resolution x-ray emission spectroscopy

AIP conference proceedings (2001)

Yoshiaki Ito

A Johann-type single crystal spectrometer (2R=1500 mm) with a high resolution was equipped in BL01B1 in Spring-8. This has an excitation source over an energy range more than 3.1 keV for a core level investigation and material sciences. The experimental results with fluorescence x-ray spectra on copper and tungsten are first time presented here. The features in K and L emission spectra of copper and tungsten excited near threshold, and a clear relationship between them and spectral structures usually obtained in the laboratory, are mentioned. The monochromator uses the Si double-crystal system, in which the energy resolution is within the width of Rocking curve in Bragg reflection. The spectrometer has a resolving power of ΔE/E=2×10−4 for Fe Kα1 spectra. Si(100) crystal was used for the copper and Si(111) used for the tungsten, respectively.

Monochromator

Crystal (programming language)

Reflection

10.1063/1.1395244

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Effect of Nonsupplemented Low-Protein Diet on the Initiation of Renal Replacement Therapy in Stage 4 and 5 Chronic Kidney Disease: A Retrospective Multicenter Cohort Study in Japan

Journal of Renal Nutrition (2023)

Haruhisa Otani Tadashi Okada Yasushi Saika Michiko Sakagashira H. Oda

Renal replacement therapy

10.1053/j.jrn.2023.05.001

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The crystal structure of chromium sulphate pentahydrate and the relation between the Jahn-Teller effect and cell dimensions

Zeitschrift für Kristallographie (1987)

Hiroyuki Ito Yoshiaki Ito Fumikazu Kanamaru Kichiro Koto Nobuyuki Matsubayashi

Jahn–Teller effect

Crystal (programming language)

10.1524/zkri.1987.181.1-4.99

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First Observation of Electron Scattering from Online-Produced Radioactive Target

Physical Review Letters (2023)

K. Tsukada Y. Abe A. Enokizono T. Goke Masahiro Hara

We successfully performed electron scattering off unstable nuclei which were produced online from the photofission of uranium. The target Cs137 ions were trapped with a new target-forming technique that makes a high-density stationary target from a small number of ions by confining them in an electron storage ring. After developments of target generation and transportation systems and the beam stacking method to increase the ion beam intensity up to approximately 2×107 ions per pulse beam, an average luminosity of 0.9×1026 cm−2 s−1 was achieved for Cs137. The obtained angular distribution of elastically scattered electrons is consistent with a calculation. This success marks the realization of the anticipated femtoscope which clarifies the structures of exotic and short-lived unstable nuclei.Received 7 March 2023Accepted 21 June 2023DOI:https://doi.org/10.1103/PhysRevLett.131.092502© 2023 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasForm factorsNuclear charge distributionNuclear shapes and momentsTechniquesParticle sources & targetsRadioactive beamsNuclear Physics

Photofission

10.1103/physrevlett.131.092502

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Citations (15)

CCDC 625143: Experimental Crystal Structure Determination

The Cambridge Structural Database (2007)

Hironobu Maeda Yoshiaki Ito Y. Kusunose T. Nakanishi

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccnzhx0

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CCDC 133615: Experimental Crystal Structure Determination

The Cambridge Structural Database (1999)

R. Yoshihara K. Mori Shin‐Ichi Nishiyama S. Yamamura H. Hosomi

10.5517/cc4h15t

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Change in Fracture Behavior of PHA/PCL Blends due to Additives

The Proceedings of the Materials and Mechanics Conference (2016)

Yoshiaki Ito Masahiro Nishida Masakazu Nishida Hideyuki Shinzawa

Polyhydroxyalkanoate (PHA) which is biodegradable plastic shows the brittleness. Therefore, our group has conducted the research to improve mechanical properties by blending Polycaprolactone (PCL) which shows high ductility. As a result, it was shown that ductility was improved slightly when 50% of PCL was blended. This research aimed at the further mechanical properties improvement in dynamic tensile test by adding the additives to blend materials. When the additives were added, it was confirmed that the maximum stress and fracture strain increased together, and, the usefulness of the additives was showed.

Ductility (Earth science)

Polycaprolactone

Brittleness

Tensile testing

Brittle fracture

10.1299/jsmemm.2016.os14-02

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Structural evaluation of a Mo/Si multilayer, analyzed with various wavelengths

Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (1993)

Yoshiaki Ito Takeshi Mukoyama Kazuhiko Omote Kazuaki Shimizu A. Nisawa

10.1016/0168-583x(93)95674-t

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Evidence for cos(4\varphi) modulation of the superconducting-gap in Fe(Te,Se)

arXiv (Cornell University) (2012)

Kozo Okazaki Yoshiaki Ito Yukinobu Ota Yoshinori Kotani T. Shimojima

We study the superconducting(SC)-gap anisotropy of the \Gamma-centered hole Fermi surface in optimally doped FeTe_{0.6}Se_{0.4} (T_c = 14.5 K), using laser-excited angle-resolved photoemission spectroscopy (ARPES). We observe sharp superconducting coherence peaks at T = 2.5 K. In contrast to earlier ARPES studies but consistent with thermodynamic results, the momentum dependence shows a \cos(4\varphi) modulation of the SC-gap anisotropy. The observed SC-gap anisotropy strongly indicates that the pairing interaction is not a conventional phonon-mediated isotropic one. Instead, the results suggest the importance of second-nearest-neighbor electronic interactions between the iron sites in the framework of s_\pm-wave superconductivity.

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