Published July 2005 | Version v1
Journal article Metadata-only

Structure and Properties of Antimony-Doped Potassium Titanyl Phosphate Single Crystals

Creators

  • 1. Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninskii pr. 59, Moscow, 119333 (Russian Federation)
  • 2. Moscow State University, Vorob'evy gory, Moscow, 119992 (Russian Federation)

Description

Antimony-doped potassium titanyl phosphate (KTP) crystals of the composition KTiOPO4 are studied by X-ray diffraction analysis. It is shown that, with an increase of antimony content in KTP crystals, the occupancies of potassium positions change and new additional positions for potassium atoms arise. The formation of additional vacancies and splitting of the potassium-cation positions explain the considerable decrease in the temperature of the ferroelectric phase transition, enhancement of the relaxation phenomena, and an increase in electric conductivity of antimony-doped KTP crystals. Substitution of antimony atoms for titanium is accompanied by elongation of short and shortening of long Ti-O bonds in the TiO6 octahedra, processes which result in lower intensity of second-harmonic generation in laser-irradiated KTP crystals

Additional details

Identifiers

DOI
10.1134/1.1996729;

Publishing Information

Journal Title
Crystallography Reports
Journal Volume
50
Journal Issue
4
Journal Page Range
p. 554-565
ISSN
1063-7745
CODEN
CYSTE3

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
37031467
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Translation
Descriptors DEI
ANTIMONY; BOND LENGTHS; CATIONS; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; ELONGATION; FERROELECTRIC MATERIALS; HARMONIC GENERATION; LASERS; MONOCRYSTALS; PHASE TRANSFORMATIONS; PHOSPHATES; POTASSIUM COMPOUNDS; RELAXATION; TITANIUM COMPOUNDS; VACANCIES; X-RAY DIFFRACTION
Descriptors DEC
ALKALI METAL COMPOUNDS; CHARGED PARTICLES; COHERENT SCATTERING; CRYSTAL DEFECTS; CRYSTAL STRUCTURE; CRYSTALS; DEFORMATION; DIELECTRIC MATERIALS; DIFFRACTION; DIMENSIONS; ELECTRICAL PROPERTIES; ELEMENTS; FREQUENCY MIXING; IONS; LENGTH; MATERIALS; METALS; OXYGEN COMPOUNDS; PHOSPHORUS COMPOUNDS; PHYSICAL PROPERTIES; POINT DEFECTS; SCATTERING; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
Translated from Kristallografiya, ISSN 0023-4761, 50, 605-616 (No. 4, 2005); (c) 2005 Pleiades Publishing, Inc.