摘要
The discovery of an extraordinarily superconductive large energy gap in SrTiO3 supported single-layer FeSe films has recently initiated a great deal of research interests in surface-enhanced superconductivity and superconductive ultrathin films fabricated on crystal surfaces. On account of the instability of ultra-thin films in air, it is desirable to perform elec- trical transport measurement in ultra-high vaccum （UHV）. Here we review the experimental techniques of in situ electrical transport measurement and their applications on superconductive ultrathin films.
The discovery of an extraordinarily superconductive large energy gap in SrTiO3 supported single-layer FeSe films has recently initiated a great deal of research interests in surface-enhanced superconductivity and superconductive ultrathin films fabricated on crystal surfaces. On account of the instability of ultra-thin films in air, it is desirable to perform elec- trical transport measurement in ultra-high vaccum （UHV）. Here we review the experimental techniques of in situ electrical transport measurement and their applications on superconductive ultrathin films.
基金
supported by the National Basic Research Program of China(Grant Nos.2013CB921902 and 2011CB922200)
the National Natural Science Foundation of China(Grant Nos.11227404,11274228,11521404,11174199,and 11134008)
