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1篇 您的检索式:作者名="Moses H.W.Chan"
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1Novel voltage signal at proximity-induced superconducting transition temperature in gold nanowires显示文摘We observed a novel voltage peak in the proximity-induced superconducting gold(Au) nanowire while cooling the sample through the superconducting transition temperature. The voltage peak turned dip during warming. The voltage peak or dip was found to originate respectively from the emergence or vanishing of the proximity-induced superconductivity in the Au nanowire.The amplitude of the voltage signal depends on the temperature scanning rate, and it cannot be detected when the temperature is changed slower than 0.03 K/min. This transient feature suggests the non-equilibrium property of the effect. Ginzburg-Landau model clarified the voltage peak by considering the emergence of Cooper pairs of relatively lower free energy in superconducting W contact and the non-equilibrium diffusion of Cooper pairs and quasiparticles.Jian Wang JunXiong Tang ZiQiao Wang Yi Sun QingFeng Sun Moses H.W.Chan 2018Science China(Physics,Mechanics & Astronomy)2018,61,8:0
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