【摘要】 我们测量了Nb₃Sn从4.2K到273K的绝对热电势率,结果表明在18 K以上,Nb₃Sn的热电势率都是正的.在60K左右,观察到由于声子曳引引起的平坦的峰.第一次观察到在超导临界温度附近,热电势率也有一个明显的转变过程.更多还原

【Abstract】 The absolute thermoelectric power of Nb₃Sn at temperatures ranging from 4.2 K to273 K was Measured. The results showed that the thermoelectric power of Nb₃Sn is po-sitive above 18 K. A smooth peak due to phonon drag was found at about 60 K. Anobvious transition process in thermoelectric power was first observed near the criticaltemperature.更多还原