Contrasting pressure evolutions of $f$ electron hybridized states in CeRhIn${}_5$ and YbNi${}_3$Ga${}_9$: an optical conductivity study

H. Okamura, A. Takigawa, T. Yamasaki +4

Optical conductivity [$\sigma (\omega )$] of CeRhIn${}_5$ and YbNi${}_3$Ga${}_9$ have been measured at external pressures to 10 GPa and at low temperatures to 6 K. Regarding CeRhIn${}_5$, at ambient p…