Nodeless superconducting gap and electron-boson coupling in (La,Pr,Sm)3Ni2O7 films · J. Shen et al.
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sUPeRcONDUctiVitY Nodeless superconducting gap and electron- boson coupling in (La,Pr,Sm)3Ni2O7 films Jianchang Shen1†, Guangdi Zhou2†, Yu Miao1,3†, Peng Li2,4†, Zhipeng Ou1,3,5†, Yaqi Chen2, Zechao Wang2, Runqing Luan1,3,5, Hongxu Sun1,3,5, Zikun Feng1,3,5, Xinru Yong1,3,5, Yueying Li2, Lizhi Xu2, Wei Lv2, Zihao Nie2, Heng Wang2,4, Haoliang Huang2,4, Yu- Jie Sun2,4, Qi- Kun Xue2,4,6*, Junfeng He1,3,5*, Zhuoyu Chen2,4* The discovery of superconductivity in Ruddlesden- Popper bilayer nickelate films under ambient pressure provides an opportunity to directly investigate electronic energy scales of the superconducting state and the pairing mechanism. We report angle- resolved photoemission spectroscopy measurements of superconducting (La,Pr,Sm)3ni2O7 thin films by developing an ultrahigh- vacuum cryogenic sample quenching and transfer technique. …
摘自《科学》(Science)第392卷 第6805期 · 2026年6月25日,J. Shen et al.。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。