ESR- und ENDOR-Spektren von F-Zentren in RbCl und RbBr
ESR- and ENDOR-spectra of F-centers in RbCl and RbBr have been measured, giving the hyperfine constants for 5 resp. 6 shells of neighbouring ions. The resolved structure with a characteristic distance of 36 G in the ESR-spectrum of RbCl is due to the interaction with the nearest Rb85 nuclei. All results fit well with the properties of F-centers in other alkali halides.