Emergent Bound States and Impurity Pairs in Chemically Doped Shastry-Sutherland System

Understand

The search for novel unconventional superconductors is a central topic of modern condensed matter physics.

• Similar to other Mott insulators, Shastry-Sutherland (SSL) systems are predicted to become superconducting when chemically doped.
• This makes SrCu2(BO3)2, an experimental realization of SSL model, a suitable candidate and understanding of the doping effects in it very important.
• Here we report doping-induced emergent states in Mg-doped SrCu2(BO3)2, which remain stable up to high magnetic fields.