KYF4 hP108 144

• F-K-Y
• Er-F-K
• F-K-Yb
• F-K-Pr-Y
• F-Ho-K
• structural properties
• optical properties
• luminescence
• wavelength for luminescence
• values of optical absorption
• halogen
• alkali
• rare earth
• fluoride
• non-disordered
• trigonal