Spiral formation during Czochralski growth of rare-earth scandates

被引：97

作者：

Uecker, R.

Wilke, H.

Schlom, D. G.

Velickov, B.

Reiche, P.

Polity, A.

Bernhagen, M.

Rossberg, M.

机构：

[1] Inst Crystal Growth, D-12489 Berlin, Germany

[2] Penn State Univ, Dept Mat Sci & Engn, University Pk, PA 16802 USA

[3] Univ Giessen, Inst Phys, D-35392 Giessen, Germany

来源：

JOURNAL OF CRYSTAL GROWTH | 2006年 / 295卷 / 01期

关键词：

convective instability; heat transfer; Czochralski method; oxides;

D O I：

10.1016/j.jcrysgro.2006.07.018

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Single crystals of the rare-earth scandates DyScO3, GdSCO3, SmScO3, and NdScO3 were grown by the Czochralski technique. The influence of the absorption of radiant heat in the growing crystals on interface stability was investigated. Numerical simulations were performed to calculate the influence of thermal instabilities close to the growth interface on the axial symmetry of the flow field, which eventually leads to spiral growth. To inhibit spiral formation, a conical baffle was utilized to intensifying the buoyant-thermocapillary convection. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：84 / 91

页数：8

共 50 条

[41] PROTONIC CONDUCTION IN ACCEPTOR-DOPED CUBIC RARE-EARTH SESQUIOXIDES
NORBY, T
DYRLIE, O
KOFSTAD, P
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1992, 75 (05) : 1176 - 1181
[42] Hydrothermal formation and characteristics of rare-earth niobate phosphors and solid solutions between YNbO4 and TbNbO4
Hirano, Masanori
Dozono, Hayato
MATERIALS CHEMISTRY AND PHYSICS, 2014, 143 (02) : 860 - 866
[43] The effects of several growth parameters on the formation behavior of point defects in Czochralski-grown silicon crystals
Cho, Hyon-Jong
Lee, Bo-Young
Lee, Jeong Yong
JOURNAL OF CRYSTAL GROWTH, 2006, 292 (02) : 260 - 265
[44] Local A-Site Layering in Rare-Earth Orthochromite Perovskites by Solution Synthesis
Daniels, Luke M.
Kashtiban, Reza J.
Kepaptsoglou, Demie
Ramasse, Quentin M.
Sloan, Jeremy
Walton, Richard I.
CHEMISTRY-A EUROPEAN JOURNAL, 2016, 22 (51) : 18362 - 18367
[45] Phase identification and structure investigation of novel quaternary rare-earth substituted titanates
Aldridge, James D.
Womick, Jordan M.
Rosmus, Kimberly A.
Weiland, Ashley
Aitken, Jennifer A.
Polvani, Deborah A.
JOURNAL OF SOLID STATE CHEMISTRY, 2017, 256 : 19 - 26
[46] Heat Capacity of Rare-Earth Stannates in the Range 350-1000 K
Denisova, L. T.
Kargin, Yu. F.
Denisov, V. M.
INORGANIC MATERIALS, 2017, 53 (09) : 956 - 961
[47] Dielectric permittivity of some novel copper/cobalt and rare-earth metal tungstates
Gron, T.
Tomaszewicz, E.
Kukula, Z.
Pawlus, S.
Sawicki, B.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2014, 184 : 14 - 17
[48] Synthesis, structural and physical properties of some rare-earth doped nickel chromites
Manhas, Ujwal
Sharma, Narayan Dutt
Singh, Devinder
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 2020, 59 (05): : 633 - 639
[49] Effect of internal radiation on the diameter instability observed during the Czochralski growth of Cr4+, Nd3+: YAG crystal
Faiez, Reza
Rezaei, Yazdan
MATERIALS RESEARCH EXPRESS, 2016, 3 (12):
[50] Properties of rare-earth scandate single crystals (Re = Nd-Dy)
Uecker, R.
Velickov, B.
Klimm, D.
Bertram, R.
Bernhagen, M.
Rabe, M.
Albrecht, M.
Fornari, R.
Schlom, D. G.
JOURNAL OF CRYSTAL GROWTH, 2008, 310 (10) : 2649 - 2658

← 1 2 3 4 5 →