Abstract
AbstractX‐ray diffraction, electron diffraction and scanning transmission electron microscopy images prove the structurally independent two‐dimensional layers of precisely m tin selenide bilayers and a single niobium diselenide trilayer in heterostructure thin films with a rotational disorder between them. The superconducting critical temperatures decrease systematically as m, the number of tin selenide layers, increases. However, all are lower than that known for isolated single niobium diselenide layers. This indicates a decoupling of these layers. A possible mechanism is a decrease in the density of states due to charge donation from the tin selenide layer.
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