Anion Effect on the Thermometric Properties of Near‐Infrared Emitting Mn <sup>5+</sup> ‐Activated Sr <sub>5</sub> (PO <sub>4</sub> ) <sub>3</sub> X (X = F, Cl, Br) Apatite PhosphorsMichele Back, Aleksej Zarkov|Advanced Optical Materials|2025Cited by 7