Growth and structural X-ray investigations of scheelite-like single crystals Er, Ce:NaLa(MoO4)2 and Yb:NaGd(WO4)2

被引：69

作者：

Kuz'micheva, G. M. ^{[2
]}

Lis, D. A. ^{[1
,3
]}

Subbotin, K. A. ^{[1
]}

Rybakov, V. B. ^{[4
]}

Zharikov, E. V. ^{[1
,3
]}

机构：

[1] Russian Acad Sci, AM Prokhorov Gen Phys Inst, Moscow 119991, Russia

[2] MV Lomonosov Moscow State Acad Fine Chem Technol, Moscow, Russia

[3] DI Mendeleyev Univ Chem Technol Russia, Moscow, Russia

[4] Moscow MV Lomonosov State Univ, Moscow 117234, Russia

来源：

JOURNAL OF CRYSTAL GROWTH | 2005年 / 275卷 / 1-2期

关键词：

Crystal structure; Segregation; X-ray diffraction; Czochralski method; Rare-earth compounds; Tungstates;

D O I：

10.1016/j.jcrysgro.2004.11.257

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Concentration series of scheelite-like laser crystals, Yb:NaGd(WO4)(2) with different Yb concentrations, as well as NaLa(MoO4)(2), both undoped and doped by Er and different concentrations of Ce have been grown by Czochralski technique. The actual concentrations of dopants were measured by microprobe analysis, the segregation coefficients of dopants in the crystals are presented. For Er,Ce:NaLa(MoO4)(2) the undistorted scheelite-like (CaWO4) structure with statistical distribution of Na+ and Ln(3+) ions on Ca2+ sites, have been confirmed, whereas for NaGd(WO4)(2) crystals with the doubling of unit cell parameters have been found for the first time. The nature of colour centres, formed in NaLa(MoO4)(2) crystals, grown in oxygen-lack atmosphere, are discussed. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：E1835 / E1842

页数：8

共 16 条

[1] Growth by the top nucleated floating crystal method and spectroscopic properties of Yb3+-doped KGd(WO4)2 [J].

Brenier, A ;

Métrat, G ;

Muhlstein, N ;

Bourgeois, F ;

Boulon, G .

OPTICAL MATERIALS, 2001, 16 (1-2) :189-192

[2]

Egorova A.N., 1982, NEORGANICHESKIE MAT, V18, P2036

[3]

KLEVTSOVA RF, 1974, KRISTALLOGRAFIYA+, V19, P89

[4] Laser operation of the new stoichiometric crystal KYb(WO4)2 [J].

Klopp, P ;

Griebner, U ;

Petrov, V ;

Mateos, X ;

Bursukova, MA ;

Pujol, MC ;

Sole, R ;

Gavalda, J ;

Aguilo, M ;

Güell, F ;

Massons, J ;

Kirilov, T ;

Diaz, F .

APPLIED PHYSICS B-LASERS AND OPTICS, 2002, 74 (02) :185-189

[5] CW laser performance of Yb and Er,Yb doped tungstates [J].

Kuleshov, NV ;

Lagatsky, AA ;

Shcherbitsky, VG ;

Mikhailov, VP ;

Heumann, E ;

Jensen, T ;

Diening, A ;

Huber, G .

APPLIED PHYSICS B-LASERS AND OPTICS, 1997, 64 (04) :409-413

[6]

KUZMICHEVA GM, 1988, ZH NEORG KHIM+, V33, P2200

[7] Effect of random distribution and molecular interactions on optical properties of Er3+ dopant in KY(WO4)2 and Ho3+ in KYb(WO4)2 [J].

Macalik, L ;

Deren, PJ ;

Hanuza, J ;

Strek, W ;

Demidovich, AA ;

Kuzmin, AN .

JOURNAL OF MOLECULAR STRUCTURE, 1998, 450 (1-3) :179-192

[8] REVISED EFFECTIVE IONIC-RADII AND SYSTEMATIC STUDIES OF INTERATOMIC DISTANCES IN HALIDES AND CHALCOGENIDES [J].

SHANNON, RD .

ACTA CRYSTALLOGRAPHICA SECTION A, 1976, 32 (SEP1) :751-767

[9]

SOKOLOVSKII BM, 1977, ZH NEORG KHIM+, V22, P1499

[10]

SPITSYN VI, 1969, DOKL AKAD NAUK SSSR+, V185, P854

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