6533b85afe1ef96bd12b8b07
RESEARCH PRODUCT
Thermal conductivity of half-Heusler superlattices
Gerhard JakobChristoph EulerMyriam H. AguirreTino JaegerSascha PopulohAnke WeidenkaffAnke WeidenkaffChristian MixPaulina Hołujsubject
DiffractionMaterials sciencebusiness.industrySuperlatticeCrystal structureSputter depositionCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsThermoelectric figure of meritThermal conductivityTransmission electron microscopyMaterials ChemistryOptoelectronicsElectrical and Electronic EngineeringThin filmbusinessdescription
Thin films and superlattices (SLs) of TiNiSn and ZrHfNiSn layers have been grown by dc magnetron sputtering on MgO (100) substrates to reduce the thermal conductivity, aiming for improvement of the thermoelectric figure of merit ZT. The thermal conductivity of 1 Wm−1K−1 was measured by the differential 3ω method for an SL with a periodicity of 8.8 nm. In addition to x-ray diffraction analysis of the SL crystal structure, smooth interfaces were confirmed by scanning/transmission electron microscopy.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-11-14 | Semiconductor Science and Technology |