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Change in compressibility of M$$^{3+}$$OOH oxyhydroxide at high pressure

Sano, Asami   ; Yagi, Takehiko*; Kagi, Hiroyuki*; Nagai, Takaya*; Komatsu, Kazuki*

Applying pressure to linear hydrogen bond induces the decrease of O...O distances and the formation of a strong hydrogen bond. InOOH type M$$^{3+}$$OOH (M = Al, Cr, Fe, Ga...) with distorted rutile type structure is one of the densest polymorph among oxyhydroxide, and has a strong hydrogen bond even at ambient conditions. In $$delta$$-AlOOH, theoretical studies have predicted that a symmetric hydrogen bond would be formed at high pressure. To investigate experimentally the symmetrization in MOOH oxyhydroxide, we conducted (1) neutron diffraction experiment of $$delta$$-AlOOD and (2) compression experiment on various M$$^{3+}$$OOH oxyhydroxide (M = Al, Ga, In, Cr). Combining these results, I will discuss the relation between the change in compression behavior of M$$^{3+}$$OOH and the symmetrization of hydrogen bond.

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English

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3rd UT Horiba International Symposium and 11th ISSP International Symposium (ISSP-11) on Hydrogen and Water in Condensed Matter Physics

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2009/10

Location (city)

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Nagara

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Japan

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no keyword

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Press Release

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Article of JAEA R&D Review

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- Accesses

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