The new superconductor La3Ni2O7 shows superconducting properties at ambient pressure through epitaxial compressive strain, with Tc values ranging from 26 K to 42 K.
This study highlights that low-temperature resistance, observed around 2 K, is influenced by stacking defects, grain boundaries, and oxygen stoichiometry in La3Ni2O7.
The ability to achieve superconductivity in La3Ni2O7 thin films at ambient pressure opens new avenues for further exploration and application of nickelate superconductors.
The connection between in-plane lattice constants and higher Tc values indicates a significant structural influence on superconducting properties within La3Ni2O7 films.
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