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Title: Revised phase diagram of Li{sub 2}MoO{sub 4}-ZnMoO{sub 4} system, crystal structure and crystal growth of lithium zinc molybdate

Abstract

Orthorhombic lithium zinc molybdate was first chosen and explored as a candidate for double beta decay experiments with {sup 100}Mo. The phase equilibria in the system Li{sub 2}MoO{sub 4}-ZnMoO{sub 4} were reinvestigated, the intermediate compound Li{sub 2}Zn{sub 2}(MoO{sub 4}){sub 3} of the alpha-Cu{sub 3}Fe{sub 4}(VO{sub 4}){sub 6} (lyonsite) type was found to be nonstoichiometric: Li{sub 2-2x}Zn{sub 2+x}(MoO{sub 4}){sub 3} (0<=x<=0.28) at 600 deg. C. The eutectic point corresponds to 650 deg. C and 23 mol% ZnMoO{sub 4}, the peritectic point is at 885 deg. C and 67 mol% ZnMoO{sub 4}. Single crystals of the compound were prepared by spontaneous crystallization from the melts and fluxes. In the structures of four Li{sub 2-2x}Zn{sub 2+x}(MoO{sub 4}){sub 3} crystals (x=0; 0.03; 0.21; 0.23), the cationic sites in the face-shared octahedral columns were found to be partially filled and responsible for the compound nonstoichiometry. It was first showed that with increasing the x value and the number of vacancies in M3 site, the average M3-O distance grows and the lithium content in this site decreases almost linearly. Using the low-thermal-gradient Czochralski technique, optically homogeneous large crystals of lithium zinc molybdate were grown and their optical, luminescent and scintillating properties were explored. - Graphical abstract:more » The phase diagram of the system Li{sub 2}MoO{sub 4}-ZnMoO{sub 4} was revised, Li{sub 2-2x}Zn{sub 2+x}(MoO{sub 4}){sub 3} (0<=x<=0.28 at 600 deg. C) isotypical to alpha-Cu{sub 3}Fe{sub 4}(VO{sub 4}){sub 6} was found. Structural studies for x=0; 0.03; 0.21; 0.23 show consecutive increasing the number of vacancies and atomic displacement anisotropy in the face-shared octahedral columns. Large Li{sub 2}Zn{sub 2}(MoO{sub 4}){sub 3} crystals were grown and their optical, luminescent and scintillating properties were explored.« less

Authors:
; ;  [1];  [2]; ;  [1]
  1. Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Acad. Lavrentiev Ave. 3, Novosibirsk 630090 (Russian Federation)
  2. Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Acad. Lavrentiev Ave. 5, Novosibirsk 630090 (Russian Federation)
Publication Date:
OSTI Identifier:
21370505
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 182; Journal Issue: 7; Other Information: DOI: 10.1016/j.jssc.2009.04.036; PII: S0022-4596(09)00195-9; Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANISOTROPY; ATOMIC DISPLACEMENTS; CRYSTAL GROWTH; CRYSTALLIZATION; DOUBLE BETA DECAY; EUTECTICS; LITHIUM COMPOUNDS; LUMINESCENCE; MOLYBDATES; MONOCRYSTALS; ORTHORHOMBIC LATTICES; PHASE DIAGRAMS; TEMPERATURE GRADIENTS; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; VACANCIES; VANADATES; ZINC COMPOUNDS; ALKALI METAL COMPOUNDS; BETA DECAY; BETA-MINUS DECAY; CRYSTAL DEFECTS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; DECAY; DIAGRAMS; EMISSION; INFORMATION; MOLYBDENUM COMPOUNDS; NUCLEAR DECAY; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHOTON EMISSION; PHYSICAL RADIATION EFFECTS; POINT DEFECTS; RADIATION EFFECTS; REFRACTORY METAL COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS

Citation Formats

Solodovnikov, Sergey F., E-mail: solod@che.nsk.s, Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Solodovnikova, Zoya A, Zolotova, Evgeniya S, Yudanova, Lyudmila I, Kardash, Tatyana Yu, Pavlyuk, Anatoly A, and Nadolinny, Vladimir A. Revised phase diagram of Li{sub 2}MoO{sub 4}-ZnMoO{sub 4} system, crystal structure and crystal growth of lithium zinc molybdate. United States: N. p., 2009. Web. doi:10.1016/j.jssc.2009.04.036.
Solodovnikov, Sergey F., E-mail: solod@che.nsk.s, Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Solodovnikova, Zoya A, Zolotova, Evgeniya S, Yudanova, Lyudmila I, Kardash, Tatyana Yu, Pavlyuk, Anatoly A, & Nadolinny, Vladimir A. Revised phase diagram of Li{sub 2}MoO{sub 4}-ZnMoO{sub 4} system, crystal structure and crystal growth of lithium zinc molybdate. United States. https://doi.org/10.1016/j.jssc.2009.04.036
Solodovnikov, Sergey F., E-mail: solod@che.nsk.s, Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090, Solodovnikova, Zoya A, Zolotova, Evgeniya S, Yudanova, Lyudmila I, Kardash, Tatyana Yu, Pavlyuk, Anatoly A, and Nadolinny, Vladimir A. Wed . "Revised phase diagram of Li{sub 2}MoO{sub 4}-ZnMoO{sub 4} system, crystal structure and crystal growth of lithium zinc molybdate". United States. https://doi.org/10.1016/j.jssc.2009.04.036.
@article{osti_21370505,
title = {Revised phase diagram of Li{sub 2}MoO{sub 4}-ZnMoO{sub 4} system, crystal structure and crystal growth of lithium zinc molybdate},
author = {Solodovnikov, Sergey F., E-mail: solod@che.nsk.s and Novosibirsk State University, Pirogova St. 2, Novosibirsk 630090 and Solodovnikova, Zoya A and Zolotova, Evgeniya S and Yudanova, Lyudmila I and Kardash, Tatyana Yu and Pavlyuk, Anatoly A and Nadolinny, Vladimir A},
abstractNote = {Orthorhombic lithium zinc molybdate was first chosen and explored as a candidate for double beta decay experiments with {sup 100}Mo. The phase equilibria in the system Li{sub 2}MoO{sub 4}-ZnMoO{sub 4} were reinvestigated, the intermediate compound Li{sub 2}Zn{sub 2}(MoO{sub 4}){sub 3} of the alpha-Cu{sub 3}Fe{sub 4}(VO{sub 4}){sub 6} (lyonsite) type was found to be nonstoichiometric: Li{sub 2-2x}Zn{sub 2+x}(MoO{sub 4}){sub 3} (0<=x<=0.28) at 600 deg. C. The eutectic point corresponds to 650 deg. C and 23 mol% ZnMoO{sub 4}, the peritectic point is at 885 deg. C and 67 mol% ZnMoO{sub 4}. Single crystals of the compound were prepared by spontaneous crystallization from the melts and fluxes. In the structures of four Li{sub 2-2x}Zn{sub 2+x}(MoO{sub 4}){sub 3} crystals (x=0; 0.03; 0.21; 0.23), the cationic sites in the face-shared octahedral columns were found to be partially filled and responsible for the compound nonstoichiometry. It was first showed that with increasing the x value and the number of vacancies in M3 site, the average M3-O distance grows and the lithium content in this site decreases almost linearly. Using the low-thermal-gradient Czochralski technique, optically homogeneous large crystals of lithium zinc molybdate were grown and their optical, luminescent and scintillating properties were explored. - Graphical abstract: The phase diagram of the system Li{sub 2}MoO{sub 4}-ZnMoO{sub 4} was revised, Li{sub 2-2x}Zn{sub 2+x}(MoO{sub 4}){sub 3} (0<=x<=0.28 at 600 deg. C) isotypical to alpha-Cu{sub 3}Fe{sub 4}(VO{sub 4}){sub 6} was found. Structural studies for x=0; 0.03; 0.21; 0.23 show consecutive increasing the number of vacancies and atomic displacement anisotropy in the face-shared octahedral columns. Large Li{sub 2}Zn{sub 2}(MoO{sub 4}){sub 3} crystals were grown and their optical, luminescent and scintillating properties were explored.},
doi = {10.1016/j.jssc.2009.04.036},
url = {https://www.osti.gov/biblio/21370505}, journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 7,
volume = 182,
place = {United States},
year = {2009},
month = {7}
}