Open AccessMomentum‐resolved resonant inelastic X‐ray scattering on a single crystal under high pressure
Author(s) -
Yoshida Masahiro,
Ishii Kenji,
Jarrige Ignace,
Watanuki Tetsu,
Kudo Kazutaka,
Koike Yoji,
Kumagai Ken'ichi,
Hiraoka Nozomu,
Ishii Hirofumi,
Tsuei KuDing,
Mizuki Jun'ichiro
Publication year - 2014
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577513028944
Subject(s) - resonant inelastic x ray scattering , inelastic scattering , momentum (technical analysis) , scattering , physics , atomic physics , x ray , quasielastic scattering , high pressure , crystal (programming language) , nuclear physics , inelastic neutron scattering , materials science , optics , mechanics , computer science , programming language , finance , economics
A single‐crystal momentum‐resolved resonant inelastic X‐ray scattering (RIXS) experiment under high pressure using an originally designed diamond anvil cell (DAC) is reported. The diamond‐in/diamond‐out geometry was adopted with both the incident and scattered beams passing through a 1 mm‐thick diamond. This enabled us to cover wide momentum space keeping the scattering angle condition near 90°. Elastic and inelastic scattering from the diamond was drastically reduced using a pinhole placed after the DAC. Measurement of the momentum‐resolved RIXS spectra of Sr 2.5 Ca 11.5 Cu 24 O 41 at the Cu K ‐edge was thus successful. Though the inelastic intensity becomes weaker by two orders than the ambient pressure, RIXS spectra both at the center and the edge of the Brillouin zone were obtained at 3 GPa and low‐energy electronic excitations of the cuprate were found to change with pressure.