This work was supported by the National Basic Research Program of China(2006CB300404);National Natural Science Foundation of China(Grant Nos.50275026,50475077,50505007&50506008);the Natural Science Foundation of Jiangsu Province(BK2002060);research funding for the Doctor program from Chinese Education Ministry(20050286019);Chen Yunfei also acknowledges the financial support from the Program for New Century Excellent Talents in University(NCET-04-0470).
The thermal conductivities of InGaAs/ InGaAsP superlattices with different period lengths were measured from 100 to 320 K using 3ω method. In this temperature range, the thermal conductivities were found to decrease ...