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我们通过电子隧道效应可以研究超导体的能隙、电子状态密度和声子谱.隧道结电流I和电压V的特性决定了超导体的能隙,电导σ(=a/dV)和V的特性与超导体的电子状态密度有关,dσ/dV(=d2I/dV2)和V的特性反应了超导体声子谱的特征. 在参考文献[l—5]中,介绍了几种测量隧道结电流电压特
We can study the energy gap, electronic state density and phonon spectrum of the superconductor through the electronic tunneling effect.The tunnel junction current I and voltage V characteristics determine the energy gap of the superconductor, the conductance σ (= a / dV) and V characteristics and the superconductor The dependence of dσ / dV (= d2I / dV2) and V on the electronic state density of the superconductor reflects the phonon spectrum of the superconductor. In [1-5] several methods for measuring the junction current and voltage