Direct Observation of Nodes and Twofold Symmetry in FeSe Superconductor

• DOI: 10.1126/science.1202226
• Publication Date: 2011-06-17T20:27:17Z
• Authors: Can-Li Song; Yi-Lin Wang; Peng Cheng; Ye-Ping Jiang; Wei Li; Tong Zhang; Zhi Li; Ke He; Lili Wang; Jin-Feng Jia; Hsiang-Hsuan Hung; Congjun Wu; Xucun Ma; Xi Chen; Qi-Kun Xue
• Keywords: Selenide; Electron pair

Scanning tunneling spectroscopy suggests an orbital ordering mechanism for electron pairing in iron-based superconductor.