TY - JOUR
T1 - Thermal conductivity measurements of Sb-Te alloy thin films using a nanosecond thermoreflectance measurement system
AU - Kuwahara, Masashi
AU - Suzuki, Osamu
AU - Taketoshi, Naoyuki
AU - Yagi, Takashi
AU - Fons, Paul
AU - Tominaga, Junji
AU - Baba, Tetsuya
PY - 2007/10/9
Y1 - 2007/10/9
N2 - Using a nanosecond thermoreflectance measurement system, which enables the measurement of the thermal conductivity of nanometer-scale thin films, we have measured the thermal conductivities of Sb2Te, Sb2 Te 3, SbTeo, Sb, and Te thin films at room temperature. We clarified that the thermal conductivities of Sb-Te alloys depend on the Sb and Te atomic ratios. A large change in thermal conductivity was observed in the vicinity of the composition ratio of Sb2Te3. We proposed that this large change may be attributable to the formation of an Sb atomic network in the crystalline structure of the Sb-Te alloy.
AB - Using a nanosecond thermoreflectance measurement system, which enables the measurement of the thermal conductivity of nanometer-scale thin films, we have measured the thermal conductivities of Sb2Te, Sb2 Te 3, SbTeo, Sb, and Te thin films at room temperature. We clarified that the thermal conductivities of Sb-Te alloys depend on the Sb and Te atomic ratios. A large change in thermal conductivity was observed in the vicinity of the composition ratio of Sb2Te3. We proposed that this large change may be attributable to the formation of an Sb atomic network in the crystalline structure of the Sb-Te alloy.
KW - Optical disks
KW - Phase-change memory
KW - Sb-Te alloys
KW - Thermal conductivity
KW - Thermoreflectance
UR - http://www.scopus.com/inward/record.url?scp=35348851890&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=35348851890&partnerID=8YFLogxK
U2 - 10.1143/JJAP.46.6863
DO - 10.1143/JJAP.46.6863
M3 - Article
AN - SCOPUS:35348851890
SN - 0021-4922
VL - 46
SP - 6863
EP - 6864
JO - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
JF - Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
IS - 10 A
ER -