YVO4 crystal

Yttrium orthovanadate (YVO4) crystallizes in the zircon-type and belongs to the tetragonal space group -14,/amd and with the lattice constants of a=6=7.1192 A,... 

Division Multiplexer) in optical communication areas. YVO4 crystal doped with Nd " ion was a promising crystal for its low threshold and large laser emission cross section [2-4]. In this paper synchrotron radiation X-ray topograph and Electronic Probe Microscope Analysis were utilized to investigate the defects of YVO4 crystal. 

TheNd + ion shows several absorption lines of different widths in crystals. One of the absorption lines of Nd + ion in yttrium vanadate (YVO4) peaks at 809 nm and presents a natural broadening at 2 K with a full width at half maximum of (A v)nat =18 GHz. Estimate (a) The natural broadeiung in the wavelengths units (nm) and (b) the lifetime of the excited state. 

IR and Raman single crystal measurements have been carried out for YVO4 61). 

Erdei S., Growth of oxygen dificiency-free YVO4 single crystal hy top-seeded solution growth technique. J.Crystal Growth, 134 (1993), pp. 1-13. 

Erdei S. and Ainger F.W., Crystal growth of YVO4 using LHPG technique. J. Crystal Growth., 128 (1993), pp.1025-1030. 

There is a strong need for more detailed experiments. on well-chosen and characterized compounds. In the first place low-temperature polarization measurements on single crystals of e.g, YVO4 or CaMoO4 could inform us further on the splitting of the T, level. It seems worth while to search for luminescence from the tetrahedral CrO complex, especially because advanced calculations on this complex are availa-... 

Figure 1. Crystal structure of YVO4 and the model surface for the simulation.

The vanadates, together with the heavier phosphates and arsenates of the lanthanide ions, form one of the few examples of series with tetragonal symmetry both in the crystal and at the Ln ion. Of the considerable corpus of EPR measurements on the lanthanide ions, only those for the vanadates in the host lattice YVO4 are included here. Table 4 gives the values and the magnetic hyperhne... 

Manjon EJ, Jandl S, Riou G, Ftarand B, Syassen K (2004) Effeet of pressure on crystal-field transitions of Nd-doped YVO4. Phys Rev B 69 165121... 

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