3 papers
cond-mat.mtrl-sci2013
Optical conductivity spectra of the rattling phonons and charge carriers in type-VIII clathrate BaGaSn
K. Iwamoto, T. Mori, S. Kajitani +6
We have investigated optical conductivity spectra of - and -type BaGa Sn (-BGS) with type-VIII clathrate structure, at temperatures from 296\,K down to 6…
cond-mat.mtrl-sci2010
Low temperature line-width broadening in optical-conductivity spectra of the off-center rattling phonons in type-I clathrate BaGaSn
T. Mori, K. Iwamoto, S. Kushibiki +6
With a terahertz time-domain spectrometer (0.3 - 3.0 THz) we have measured the optical conductivity of the type-I clathrate BaGaSn at temperatures from 300 K down…
cond-mat.mtrl-sci2009
Optical conductivity of rattling phonons in type-I clathrate BaGaGe
T. Mori, S. Goshima, K. Iwamoto +9
A series of infrared-active optical phonons have been detected in type-I clathrate BaGaGe by terahertz time-domain spectroscopy. The conductivity spectra with the…