Superconductivity in Silver Boron Intermetallic Compound

抄録

The synthesis of a novel silver boron intermetallic compound (nominal composition: AgB₂) and the occurrence of superconductivity are reported. The samples are prepared by a thin-film pulsed laser deposition method incorporating a cap technique and an annealing process in a high vacuum. A sharp transition to zero resistance at T_c=6.7 K is observed. The observed T_c is significantly lower than the theoretically predicted T_c of AgB₂ diboride.