The true atomistic structure of a disordered crystal: a computational study on the photon upconve...
Hexagonal (β-) NaYF4 and LiYF4 doped with trivalent lanthanide ions (Ln3 , e.g., Er3 , Tm3 , and Yb3 ) are well-known photon upconverting materials. This property is crucially determined by the...
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