“…Meanwhile, graphene nanoribbons (GNR), which exhibit various spintronic and thermoelectric properties, have attracted much attention and are one of the most promising candidate materials for future electronic devices. ,,, In particular, zigzag-edged graphene nanoribbons (ZGNRs) are more notable because of its spin-resolved electronic and transport properties. − At present, a lot of spintronic and spin caloritronic devices based on ZGNRs are realized in theoretical and experimental studies, , and even the spin Seebeck effect also has been found in ZGNRs. ,, However, it is worth noting that graphene is able to form nanosize bubbles by trapping gas molecules under high pressure , or growing in ultrahigh vacuum . Theoretically, the presence of the graphene nanobubble may cause elastic strain and modification on electron density, affecting the electron-hopping amplitude between carbon atoms .…”