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日本結晶学会誌
Vol. 59 (2017) No. 5 p. 238-245

記事言語:

http://doi.org/10.5940/jcrsj.59.238

解説

We have applied inelastic X-ray scattering (IXS) technique to observing phonon spectra in rare-earth compounds. IXS technique has an advantage to inelastic neutron scattering to avoid seeing magnetic excitations, which are often observed in the low energy spectra of rare-earth compounds. In this review, we mentioned IXS results of filled skutterudite compounds. In a series of ROs4Sb12, we have discussed electron phonon coupling in low-lying optical modes, which is connected with heavy fermion behavior in these compounds. In an alloy system of Pr(Os1-xRux4Sb12, we have discussed anharmonic potential at the rare-earth site which may be affect by nature of superconductivity and/or heavy fermion behavior.

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