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 …

Crystalline open-framework and nanoporous materials have long attracted the attention of
chemists, physicists, and materials scientists. The intriguing structures such materials exhibit …

Engineering of materials with specific physical properties has recently focused on the effect
of nano-sized 'guest domains' in a 'host matrix'that enable tuning of electrical, mechanical …

Comprehensive single-crystal structural investigations of n-and p-type Ba8Ga16Ge30 have
been carried out using multitemperature neutron and conventional X-ray diffraction as well …

We report structural, transport, and thermal properties of carrier-tuned Ba 8 Ga 16 Sn 30
single crystals with the type-1 clathrate structure (β phase), demonstrating that Ba 8 Ga 16 …

The present controversy over the origin of glasslike thermal conductivity observed in certain
crystalline materials is addressed by studies on single-crystal x-ray diffraction, thermal …

We present a systematic study of thermal conductivity, specific heat, electrical resistivity,
thermopower, and x-ray diffraction measurements performed on single-crystalline samples …

Chalcogenide semiconductors and semimetals are a fertile class of efficient thermoelectric
materials, which, in most cases, exhibit very low lattice thermal conductivity κ ph despite …

Three Ba8Al16Ge30 clathrate type I samples have been prepared using three different
synthesis methods; flux growth, Czochralski growth, and stoichiometric mixing. The samples …

Raman active phonons in the type-I clathrate compounds of X 8 Ga 16 Ge 30 (X= Eu, Sr, Ba)
have been fully assigned by the combination of polarized Raman scattering and first …