Solid solution Li2MoO4 – Li2WO4 crystal growth and characterization

Баринова, О.П.; Sadovskiy, Andrey; Ermochenkov, Ivan; Kirsanova, S.V.; Khomyakov, A. V.; Zykova, Marina; Kuchuk, Zhanna; Avetissov, Igor

doi:10.1016/j.jcrysgro.2016.10.009

Cited by 26 publications

(6 citation statements)

References 9 publications

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“…The lattice parameters for Li 2 W 0.9 Mo 0.1 O 4 are as follows: a = b = 14.357(4) Å, c = 9.601(5) Å. The results of lattice parameters are in good agreement with the data presented in refs , . The grown crystals are presented in Figures and .…”

Section: Methodssupporting

confidence: 88%

Thermodynamic Study of Lithium Tungstate Single Crystals Doped by Molybdenum (Li₂W_1–xMo_xO₄, x = 0.1 and 0.15)

et al. 2020

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The single crystals Li2W0.85Mo0.15O4 and Li2W0.9Mo0.1O4 have been grown by a low-temperature-gradient Czochralski technique as representatives of promising materials for scintillating cryogenic bolometers. Thermodynamic properties and their relationship with structural parameters to improve and extend the device portfolio with special emphasis on formation enthalpies, thermodynamic stability, and lattice enthalpies have been revealed. Solution enthalpies of Li2CO3, MoO3, and Li2W0.85Mo0.15O4 and Li2W0.9Mo0.1O4 single crystals have been measured in 0.40162 mol kg–1 aqueous KOH. The standard formation enthalpies (Δf H 0 (Li2W0.85Mo0.15O4, s, 298.15 K) = −1590.8 ± 2.0 kJ mol–1; Δf H 0 (Li2W0.9Mo0.1O4, s, 298.15 K) = −1594.1 ± 2.3 kJ mol–1), formation enthalpies from simple oxides, and lattice enthalpies have been determined. As a result, the dependences of formation enthalpies and lattice enthalpies for Li2W1–x Mo x O4 on tolerance factors have been found to be linear. It has been discovered that the thermodynamic stability and lattice enthalpies of Li2W1–x Mo x O4 are increased when the tolerance factor tends to one. It has been established that single crystals Li2W0.85Mo0.15O4 and Li2W0.9Mo0.1O4 are several times more thermodynamically stable than ZnMoO4 and CdWO4.

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Section: Methodssupporting

confidence: 88%

Thermodynamic Study of Lithium Tungstate Single Crystals Doped by Molybdenum (Li₂W_1–xMo_xO₄, x = 0.1 and 0.15)

et al. 2020

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“…Due to issues of direct crystallization of the lithium tungstate (LiWO 4 ) stoichiometric melt, such material has been produced by a solid solution crystal growth with molybdenum admixture resulting in Li 2 Mo 1−x W x O 4 , where x is the molybdenum mole ratio [420]. High quality crystals have been produced from a stoichiometric mixture with x = 0.05 using Cz [420] and LTG Cz [352,421] crystal growth methods.…”

Section: Lithium Tungstate With Mo Contentmentioning

confidence: 99%

Scintillation in Low-Temperature Particle Detectors

Poda

2021

Physics

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Inorganic crystal scintillators play a crucial role in particle detection for various applications in fundamental physics and applied science. The use of such materials as scintillating bolometers, which operate at temperatures as low as 10 mK and detect both heat (phonon) and scintillation signals, significantly extends detectors performance compared to the conventional scintillation counters. In particular, such low-temperature devices offer a high energy resolution in a wide energy interval thanks to a phonon signal detection, while a simultaneous registration of scintillation emitted provides an efficient particle identification tool. This feature is of great importance for a background identification and rejection. Combined with a large variety of elements of interest, which can be embedded in crystal scintillators, scintillating bolometers represent powerful particle detectors for rare-event searches (e.g., rare alpha and beta decays, double-beta decay, dark matter particles, neutrino detection). Here, we review the features and results of low-temperature scintillation detection achieved over a 30-year history of developments of scintillating bolometers and their use in rare-event search experiments.

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“…This will allow further analysis of the heat capacity of the studied compound in comparison with Li2WO4 and Li2MoO4 in order to identify any features or patterns associated with molybdenum doping. At the same time, this contribution of molybdenum does not give difficulty in growing a single crystal of homogeneous structure [8]. The Li2Mo0.05W0.95O4 single crystal was grown by the low thermal gradient Czochralski technique [12].…”

Section: Samplementioning

confidence: 99%

“…Until recently, it was assumed that Li2WO4 could not be grown by the Czochralski method due to the presence of a high-temperature phase transition. Therefore, a series of works on growing Li2WO4 doped with molybdenum [5,8,9], which showed the possibility of obtaining crystals with molybdenum content from 15 to 2.5%. Currently, the low-temperature heat capacity of lithium molybdate has been studied [10].…”

Section: Introductionmentioning

confidence: 99%

The low temperature heat capacity of Li₂Mo_0.05W_0.95O₄

Musikhin

Bespyatov

Kuzin

et al. 2021

J. Phys.: Conf. Ser.

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The heat capacity of a lithium tungstate single crystal doped by 5% molybdenum Li2Mo0.05W0.95O4 in the range of 78.5–302.8 K was measured by the adiabatic method. No anomalous behavior of heat capacity was found. The heat capacity function was obtained in the range of 0–303 K by extrapolating to zero temperature and fitting experimental points. Thermodynamic functions of entropy, enthalpy increment and Gibbs free energy at 298.15 K were calculated using the obtained data.

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Solid solution Li2MoO4 – Li2WO4 crystal growth and characterization

Cited by 26 publications

References 9 publications

Thermodynamic Study of Lithium Tungstate Single Crystals Doped by Molybdenum (Li₂W_1–xMo_xO₄, x = 0.1 and 0.15)

Thermodynamic Study of Lithium Tungstate Single Crystals Doped by Molybdenum (Li₂W_1–xMo_xO₄, x = 0.1 and 0.15)

Scintillation in Low-Temperature Particle Detectors

The low temperature heat capacity of Li₂Mo_0.05W_0.95O₄

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Solid solution Li2MoO4 – Li2WO4 crystal growth and characterization

Cited by 26 publications

References 9 publications

Thermodynamic Study of Lithium Tungstate Single Crystals Doped by Molybdenum (Li2W1–xMoxO4, x = 0.1 and 0.15)

Thermodynamic Study of Lithium Tungstate Single Crystals Doped by Molybdenum (Li2W1–xMoxO4, x = 0.1 and 0.15)

Scintillation in Low-Temperature Particle Detectors

The low temperature heat capacity of Li2Mo0.05W0.95O4

Contact Info

Product

Resources

About

Thermodynamic Study of Lithium Tungstate Single Crystals Doped by Molybdenum (Li₂W_1–xMo_xO₄, x = 0.1 and 0.15)

Thermodynamic Study of Lithium Tungstate Single Crystals Doped by Molybdenum (Li₂W_1–xMo_xO₄, x = 0.1 and 0.15)

The low temperature heat capacity of Li₂Mo_0.05W_0.95O₄