Superconducting $T_{\mathrm{c}}$ up to 20.6 K in bulk YSi${}_2$ and YSi${}_2$/Si superlattices due to chemical flattening

Ding-qing Li, Chong Tian, Juan Du +5

Currently, the fundamental building blocks of leading quantum computers are Josephson junctions, whose core is usually the superconducting Al on Si wafers. However, the transition…