H. Fujii

Kitasato University

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Hydrogen in the mechanically prepared nanostructured graphite

Applied Physics Letters (1999)

Shin‐ichi Orimo G. Majer T. Fukunaga Andreas Züttel L. Schlapbach

Nanostructured graphite was prepared by mechanical milling under hydrogen atmosphere. Several samples obtained after different milling times were systematically examined to get fundamental information about the structures and hydrogen concentrations. After the expansion of the graphite interlayer, the long-range ordering of the interlayer disappears continuously with increasing milling time. The hydrogen concentration reaches up to 7.4 mass % (CH0.95) after milling for 80 h. Judging from the radial distribution function determined by the neutron diffraction measurement, there are two types of deuterium coordinations: deuterium atoms in the graphite interlayers and that with the CDx covalent bonds, respectively.

10.1063/1.125241

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Citations (242)

Magnetic, crystallographic and hydrogen absorption properties of YMn2 and ZrMn2 hydrides

Journal of the Less Common Metals (1987)

H. Fujii Minoru Saga T. Okamoto

Laves phase

Metastability

Tetrahedron

10.1016/0022-5088(87)90083-x

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Citations (56)

Pressure-induced structural and magnetic phase transitions in CeZn

Physical review. B, Condensed matter (1990)

T. Shigeoka Yoshiya Uwatoko H. Fujii L. Rebelsky S. M. Shapiro

Neutron-diffraction studies with pressures up to 12 kbar have been performed on a CeZn single crystal. At 12 kbar, a pressure-induced ferromagnetic phase with a Ce moment of 1.6${\mathrm{\ensuremath{\mu}}}_{\mathit{B}}$/atom exists below ${\mathit{T}}_{\mathit{c}}$=12 K and a cubic to rhombohedral transition occurs at ${\mathit{T}}_{\mathit{M}}$=60 K. Below 8 kbar, a collinear (00\ensuremath{\pi}) antiferromagnetic structure is stable below ${\mathit{T}}_{\mathit{N}}$\ensuremath{\sim}30 K, where a cubic-to-tetragonal transition occurs. Moreover, in the antiferromagnetic region, an application of pressure induces a tetragonal I (c/a>1)--to--tetragonal II (c/a1) phase transition. At the boundary between antiferromagnetism and ferromagnetism around p=10.6 kbar, a mixed phase or a ferrimagnetic phase appears below ${\mathit{T}}_{\mathit{c}}$ with a complex structure which is a coexistent with both the tetragonal and rhombohedral distortions.

Tetragonal crystal system

Ferrimagnetism

Phase boundary

Magnetic structure

10.1103/physrevb.42.8394

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Citations (17)

Antiferromagnetic to ferromagnetic transition in Y1-xLaxMn2Ge2

Journal of Magnetism and Magnetic Materials (1986)

H. Fujii Makoto Isoda T. Okamoto T. Shigeoka N. Iwata

10.1016/0304-8853(86)90849-8

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Citations (48)

Tunneling Spectroscopy of CeRhSb Single Crystal using Break Junction

Abstracts of the meeting of the Physical Society of Japan. Sectional meeting (1995)

Toshikazu Ekino 剛中本 Takashi Yoshino T. Takabatake H. Fujii

Break junction

Source

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Citations (0)

Search for B̄0 → Λ + cΛ ̄̄cdecay at Belle

K. Abe I. Adachi H. Aihara K. Arinstein T. Aso

Source

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Structural and hydriding properties of the Mg_Ni_H system with nano- and/or amorphous structures

Acta Materialia (1997)

Shin‐ichi Orimo Kazutaka Ikeda H. Fujii Y. Fujikawa Y. Kitano

10.1016/s1359-6454(96)00357-6

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Citations (132)

Cover Feature: Synthesis of 1,2,5‐Oxadiazinane Derivatives by Photochemical Cycloaddition of Nitrones with Diaminomethanes (ChemPhotoChem 6/2020)

ChemPhotoChem (2020)

Kennosuke Itoh Atsushi Takashino Atsushi Ohtsuka Mizuki Kobe Shunsuke Sawamura

The Cover Feature illustrates that benzophenone catalyzes photochemical cycloaddition of nitrones with diaminomethanes to produce 1,2,5-oxadiazinane. Japanese Kong wrestler statues flash their hands towards benzophenone to initiate the photoreaction. It looks like Kamehameha, which is drawn in a Japanese comic. 1,2,5-oxadiazinanes are a new family of saturated heterocycles, which are expected to be applicable in drug synthesis. More information can be found in the Communication by Kennosuke Itoh, Hitoshi Ishida, Hideaki Fujii, and co-workers.

Feature (linguistics)

10.1002/cptc.202000105

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Effect of sulfhydryl reagents on the regulatory system of the L-type Ca channel in frog ventricular myocytes

Pflügers Archiv - European Journal of Physiology (2000)

Kaoru Yamaoka Masuhide Yakehiro Tsunetsugu Yuki H. Fujii Issei Seyama

10.1007/s004240051041

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Citations (1)

P4728Prognostic value of heart rate variability for cardiac events after discharge in patients with congestive heart failure

European Heart Journal (2018)

Tomoko Manno Masato Shimizu M Ohomri Yuta Taomoto Tomoya Kaneda

Chronic heart failure -Diagnostic methods 985 over LV EF<30% (c2 = 13.7;p=0.05) and demographic and clinical parameters (c2 = 11.9) at incremental stepwise Cox analysis.Conclusions: In patients with chronic HFrEF, the results of this study show that GLS was independently associated with cardiac death and ventricular tachyarrhythmias and had an incremental value over LV EF and clinical and demographic parameters.

10.1093/eurheartj/ehy563.p4728

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Citations (0)