10 papers
Kondo singlet from ferromagnetic coupling: an analog of Anderson-Morel superconductivity in the magnetic channel
Ewan Scott, Yaqi Chen, Michael Turaev +4
We consider magnetic impurities coupled to a conduction sea via a fully isotropic ferromagnetic spin-exchange term, the strength of which depends on the conduction-electron modes i…
Atomically resolved intrinsic superconducting gap in (La,Pr)3Ni2O7 films
Xinxin Wang, Yaqi Chen, Cui Ding +7
Ruddlesden-Popper bilayer nickelates provide an emerging platform for studying high-temperature superconductivity, yet the superconducting pairing symmetry remains under debate. He…
Electronic structures across superconductor-insulator transition in Ruddlesden-Popper bilayer nickelate films
Yu Miao, Runqing Luan, Yaqi Chen +22
High-transition-temperature () superconductivity is recently discovered in Ruddlesden-Popper (RP) nickelate films with extraordinarily strong oxidation. While investigating…
Superconductivity and Electronic Structures of Nickelate Thin Film Superstructures
Zihao Nie, Yueying Li, Wei Lv +14
Ruddlesden-Popper (RP) nickelates have emerged as a crucial platform for exploring the mechanisms of high-temperature superconductivity. However, the Fermi surface topology require…
Pressure-enhanced superconductivity and its correlation with suppressed resistance dip in (La,Pr)3Ni2O7 films
Jinyu Zhao, Guangdi Zhou, Shu Cai +11
The discovery of superconductivity with a transition temperature (Tc) exceeding 40 K in La3Ni2O7 and (La,Pr)3Ni2O7 thin films at ambient pressure provides a viable platform for the…
Superconductivity onset above 60 K in ambient-pressure nickelate films
Guangdi Zhou, Heng Wang, Haoliang Huang +7
Ambient-pressure superconductivity in nickelates has been capped at an onset transition temperature () of ~50 K, a value that remains lower than the cuprate (~133 K)…