Accession Number : AD0478824

Title :   RAMAN SPECTRA OF YPO4 AND YBPO4.

Descriptive Note : Technical documentary rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Personal Author(s) : Richman, Issac

Report Date : FEB 1966

Pagination or Media Count : 16

Abstract : The Raman spectra of crystalline YPO4 and YbPO4 have been observed using a helium-neon 25 mW gas laser operating at 6328 A as an exciting source. Crystallographic data indicate that PO4 complexes exist in these two isomorphic crystals. This has been confirmed by the present Raman data. Vibrational levels that can be attributed entirely to internal PO4(3-) vibrations were observed. For YPO4 they are 1056, 1023, 997, 578, 481, 330, and 292/cm. For YbPO4 they are 1067, 1029, 1007, 580, 481, 325, and 310/cm. (Author)

Descriptors :   *PHOSPHATES), (*RAMAN SPECTROSCOPY, YTTRIUM COMPOUNDS, YTTERBIUM COMPOUNDS, RARE EARTH COMPOUNDS, VIBRATION, SELECTION RULES(PHYSICS), LINE SPECTRA, POLARIZATION, LASERS, EXCITATION, INFRARED SPECTRA, CRYSTAL STRUCTURE.

Subject Categories : Crystallography
      Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE