Abstract: Yb:Ypx V1-x O4(x = 0.02,0.06,0.10) single crystals were grown by Czochralski method . The analytic result of XRD indicates that the structure of crystal was remain tetragonal zircon-type structure and the lattice parameters were decreased linearly with increasing x. The measurement of ICP emission spectrum shows that the effective segregation coefficient Keff of P element in crystal is 1, but that of Yb3+ion in crystal decreased when x increases. The absorption coefficient and cross-section increases then decreased when the concentration of P element increased. A two phonon-like behavior was shown in the Raman spectra of Yb: Ypx V1-xO4 crystal, and a peak shifting to high-frenquecy with line broadening occurred when the x value increased.

Key words: Yb:Ypx V1-x O4(x = 0.02,0.06,0.10) single crystals were grown by Czochralski method . The analytic result of XRD indicates that the structure of crystal was remain tetragonal zircon-type structure and the lattice parameters were decreased linearly with increasing x. The measurement of ICP emission spectrum shows that the effective segregation coefficient Keff of P element in crystal is 1, but that of Yb3+ion in crystal decreased when x increases. The absorption coefficient and cross-section increases then decreased when the concentration of P element increased. A two phonon-like behavior was shown in the Raman spectra of Yb: Ypx V1-xO4 crystal, and a peak shifting to high-frenquecy with line broadening occurred when the x value increased.