1 Introduction In 1962, Josephson studied the physical phenomenon of two superconductors seperated by a thin layer of potential hill. He predicted from the point of theory that when Volt of two sides of junction is ze...1 Introduction In 1962, Josephson studied the physical phenomenon of two superconductors seperated by a thin layer of potential hill. He predicted from the point of theory that when Volt of two sides of junction is zero, there may be a superconducting current. He also thought that the critical current has a maximum J_c and regarded it due to the tunnel current of Cooper's pairs. A half year later,Anderson and Rowell proved by means of experiments that superconducting current exists in the superconducting-tunnel junction when v =0. During 1964-1965, Josephson proved again from the point of theory that the tunnel current is a sinusoidal function展开更多
文摘1 Introduction In 1962, Josephson studied the physical phenomenon of two superconductors seperated by a thin layer of potential hill. He predicted from the point of theory that when Volt of two sides of junction is zero, there may be a superconducting current. He also thought that the critical current has a maximum J_c and regarded it due to the tunnel current of Cooper's pairs. A half year later,Anderson and Rowell proved by means of experiments that superconducting current exists in the superconducting-tunnel junction when v =0. During 1964-1965, Josephson proved again from the point of theory that the tunnel current is a sinusoidal function
