Temperature dependence of the work function of Bi2Sr2CaCu2O8 single crystal cleaved at low temperature |
| |
Authors: | S Saito T Sutou Y Norimitsu N Yajima Y Uhara T Uenosono T Soumura T Tani |
| |
Institution: | Faculty of Engineering, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan |
| |
Abstract: | We measured the anomalous change in the work function of Bi2Sr2CaCu2O8 around a critical temperature (Tc ≈ 85 K). The work function becomes a minimum at Tc; the work function decreases in a normal-conductive state and then increases in a superconductive state as the temperature decreases. An increase in the work function for a transition from a normal-conductive state to a superconductive state at 0 K is about 9 meV. The contribution of the chemical potential and the surface dipole barrier to the work function are discussed. |
| |
Keywords: | 73 30 +y |
本文献已被 ScienceDirect 等数据库收录! |