K. Suekuni

activity

20052020

most citedPhonon-glass electron-crystal thermoelectric clathrates: Experiments and theory

588 citations · 936 across the 9 of their papers we have counts for

collaborators

9 papers

cond-mat.mtrl-sci2020★ 9 cited

Pressure induced quenching of planar rattling in Cu $_{10}$ Zn $_{2}$ Sb $_{4}$ S $_{13}$ studied by specific-heat and x-ray diffraction measurements

Kazunori Umeo, Koichiro Suekuni, Toshiro Takabatake +1

We have studied the pressure effect on the rattling of tetrahedrite Cu $_{10}$ Zn $_{2}$ Sb $_{4}$ S $_{13}$ (CZSS) and type-I clathrate Ba $_{8}$ Ga $_{16}$ Sn $_{30}$ (BGS) by specific hea…

cond-mat.mtrl-sci2014★ 588 cited

Phonon-glass electron-crystal thermoelectric clathrates: Experiments and theory

Toshiro Takabatake, Koichiro Suekuni, Tsuneyoshi Nakayama +1

Type-I clathrate compounds have attracted a great deal of interest in connection with the search for efficient thermoelectric materials. These compounds constitute networked cages…

cond-mat.mtrl-sci2013

Optical conductivity spectra of the rattling phonons and charge carriers in type-VIII clathrate Ba $_{8}$ Ga $_{16}$ Sn $_{30}$

K. Iwamoto, T. Mori, S. Kajitani +6

We have investigated optical conductivity spectra of $n$ - and $p$ -type Ba $_{8}$ Ga $_{16}$ Sn $_{30}$ ( $α$ -BGS) with type-VIII clathrate structure, at temperatures from 296\,K down to 6…

cond-mat.mtrl-sci2012★ 8 cited

Anomalous infrared spectra of hybridized phonons in type-I clathrate Ba $_{8}$ Ga $_{16}$ Ge $_{30}$

K. Iwamoto, S. Kushibiki, H. Honda +7

The optical conductivity spectra of the rattling phonons in the clathrate Ba $_{8}$ Ga $_{16}$ Ge $_{30}$ are investigated in detail by use of the terahertz time-domain spectroscopy. The…

cond-mat.mtrl-sci2010

Low temperature line-width broadening in optical-conductivity spectra of the off-center rattling phonons in type-I clathrate Ba $_{8}$ Ga $_{16}$ Sn $_{30}$

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 Ba $_{8}$ Ga $_{16}$ Sn $_{30}$ at temperatures from 300 K down…

cond-mat.mtrl-sci2009★ 34 cited

Optical conductivity of rattling phonons in type-I clathrate Ba $_{8}$ Ga $_{16}$ Ge $_{30}$

T. Mori, S. Goshima, K. Iwamoto +9

A series of infrared-active optical phonons have been detected in type-I clathrate Ba $_{8}$ Ga $_{16}$ Ge $_{30}$ by terahertz time-domain spectroscopy. The conductivity spectra with the…

Pressure induced quenching of planar rattling in Cu10​Zn2​Sb4​S13​ studied by specific-heat and x-ray diffraction measurements

Phonon-glass electron-crystal thermoelectric clathrates: Experiments and theory

Optical conductivity spectra of the rattling phonons and charge carriers in type-VIII clathrate Ba8​Ga16​Sn30​

Anomalous infrared spectra of hybridized phonons in type-I clathrate Ba8​Ga16​Ge30​

Low temperature line-width broadening in optical-conductivity spectra of the off-center rattling phonons in type-I clathrate Ba8​Ga16​Sn30​

Optical conductivity of rattling phonons in type-I clathrate Ba8​Ga16​Ge30​

Pressure induced quenching of planar rattling in Cu $_{10}$ Zn $_{2}$ Sb $_{4}$ S $_{13}$ studied by specific-heat and x-ray diffraction measurements

Optical conductivity spectra of the rattling phonons and charge carriers in type-VIII clathrate Ba $_{8}$ Ga $_{16}$ Sn $_{30}$

Anomalous infrared spectra of hybridized phonons in type-I clathrate Ba $_{8}$ Ga $_{16}$ Ge $_{30}$

Low temperature line-width broadening in optical-conductivity spectra of the off-center rattling phonons in type-I clathrate Ba $_{8}$ Ga $_{16}$ Sn $_{30}$

Optical conductivity of rattling phonons in type-I clathrate Ba $_{8}$ Ga $_{16}$ Ge $_{30}$