Author/Authors :
Nagaoka، نويسنده , , K and Yamashita، نويسنده , , T and Yamada، نويسنده , , M and Fujii، نويسنده , , H and Seo، نويسنده , , R and Matsuda، نويسنده , , K and Uchiyama، نويسنده , , S and Oshima، نويسنده , , C، نويسنده ,
Abstract :
We have measured field emission (FE) electron energy distributions from superconducting and normal states of a niobium tip, and we succeeded in observing an extra peak correlated to the superconducting state. The energy width of the peak was much larger than expected on the basis of simple theory.
Keywords :
Field emission , Niobium tip , Electron energy distributions , superconductor