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中村 惇平*; 川北 至信; 岡部 博孝*; Li, B.*; 下村 浩一郎*; 末益 崇*
Journal of Physics and Chemistry of Solids, 175, p.111199_1 - 111199_8, 2023/04
被引用回数:1 パーセンタイル:14.38(Chemistry, Multidisciplinary)Muon spin rotation (SR) experiments were performed to directly investigate the temperature dependence of the short-range order or correlations of chromium spins in the paramagnetic phase of AgCrSe. The detailed investigation of the SR spectra over a wide temperature range from low to high temperatures revealed that the short-range spin correlations developed below about 184 K. It also confirmed no short-range correlations at high temperatures, which had been controversial in previous quasi-elastic neutron scattering studies. In addition, the muon spin relaxation was qualitatively changed and showed large missing asymmetry below about 89 K, where the correlation clearly implied short-range spin order. There could be a preparative phenomenon of the phase transition or an anisotropic short-range spin correlation.
伊藤 孝; 下村 浩一郎*
Hydrogenomics; The Science of Fully Utilizing Hydrogen (Internet), p.43 - 49, 2023/03
A brief introduction to the muon spin rotation, relaxation, and resonance (SR) methods is given for researchers and students involved in hydrogen science research. The text includes several examples of how the SR methods can be used to elucidate the behavior of hydrogen in materials.