Výsledky vyhledávání - "SASAKI, Shigeo"

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Beryllium Polyhydride Be4H8(H2)2 Synthesized at HP/HT

Autor: Matsuoka, Takahiro, Fujihisa, Hiroshi, Ishikawa, Takahiro, Nakagawa, Takaya, Kuno, Keiji, Hirao, Naohisa, Ohishi, Yasuo, Shimizu, Katsuya, Sasaki, Shigeo

Publikováno v: Phys. Rev. Materials 4, 125402 (2020)

We report the XRD and Raman scattering measurements in combination with DFT calculations that reveal the formation of beryllium polyhydride Be4H8(H2)2 by laser heating Be/H2 mixture to above 1700 K at pressures between 5 GPa and 8 GPa. The Be4H8(H2)2

Externí odkaz: http://arxiv.org/abs/1911.01526

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Hydrogen-Storing Salt NaCl(H$_2$) Synthesized at High Pressure and High Temperature

Autor: Matsuoka, Takahiro, Muraoka, Shu, Ishikawa, Takahiro, Niwa, Ken, Ohta, Kenji, Hirao, Naohisa, Kawaguchi, Saori, Ohishi, Yasuo, Shimizu, Katsuya, Sasaki, Shigeo

X-ray diffraction and Raman scattering measurements, and first-principles calculations are performed to search for the formation of NaCl-hydrogen compound. When NaCl and H$_{2}$ mixture is laser-heated to above 1500 K at pressures exceeding 40 GPa, w

Externí odkaz: http://arxiv.org/abs/1907.06997

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Superconductivity of platinum hydride

Autor: Matsuoka, Takahiro, Hishida, Masahiro, Kuno, Keiji, Hirao, Naohisa, Ohishi, Yasuo, Sasaki, Shigeo, Takahama, Kazushi, Shimizu, Katsuya

Publikováno v: Phys. Rev. B 99, 144511 (2019)

We report the ac magnetic susceptibility, electrical resistance, and X-ray diffraction measurements of platinum hydride (PtHx) in diamond anvil cells, which reveal its superconducting transition. At 32 GPa, when PtHx is in a P63/mmc structure, PtHx e

Externí odkaz: http://arxiv.org/abs/1810.08191

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