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High-pressure inelastic experiments using a Paris-Edinburgh press and clamp cell

Hattori, Takanori   ; Nakamura, Mitsutaka   ; Iida, Kazuki*; Kawamura, Seiko   ; Sano, Asami   ; Machida, Shinichi*

Since the pressure reduces the distance between atoms in a substance and directly changes the interatomic interaction, it is possible to greatly change the state of the substance with individual structure and physical properties. The response is a good clue to understand the mechanism of physical properties. Although inelastic scattering is effective for investigating the dynamics of a substance, experiments under high pressure have been limited mainly for three reasons: inelastic scattering is weak, high pressure specimens are small, neutron sources are weak. However, if we use spectrometers (BL01, 14) with high S/N ratio at J-PARC MLF, an inelastic scattering experiment under high pressure seems to be possible. Thus, we performed the feasibility test using a Paris Edinburgh press and clamp cell. In this talk, the results will be introduced.

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