Modulation of critical current and Shapiro step by current-injection based on YBCO bridge three terminal junction

Modulation of the critical current and Shapiro steps in the I-V characteristics of the granular YBCO cross-line type bridge junction by the injection current(Iinj) is presented. The modulation of Ic by Iinj is generally determined by the total current summation effect of the transport current and Iinj at the weak link. For the I-V characteristics in the presence of the external fixed microwave irradiation with Iinj, we found the flip-flop-like mode, integer steps and half integer steps were shifted by the modulation of Iinj.