Growth and characterization of a Li2Mg2(MoO4)3 scintillating bolometer
F.A. Danevich, V.Ya. Degoda, L.L. Dulger, L. Dumoulin, A. Giuliani, P., de Marcillac, S. Marnieros, C. Nones, V. Novati, E. Olivieri, A.A. Pavlyuk,, D.V. Poda, V.A. Trifonov, I.V. Yushina, A.S. Zolotarova
TL;DR
This study reports the growth and comprehensive characterization of Li2Mg2(MoO4)3 crystals, demonstrating their potential as scintillating bolometers for neutrinoless double beta decay detection, with detailed luminescence analysis across a wide temperature range.
Contribution
First demonstration of Li2Mg2(MoO4)3 crystals functioning as scintillating bolometers at millikelvin temperatures for double beta decay searches.
Findings
Crystals successfully grown by low-thermal-gradient Czochralski method.
Luminescence properties characterized from 8 K to 400 K.
First operation of these crystals as bolometers at 20 mK.
Abstract
Lithium magnesium molybdate (LiMg(MoO)) crystals were grown by the low-thermal-gradient Czochralski method. Luminescence properties of the material (emission spectra, thermally stimulated luminescence, dependence of intensity on temperature, phosphorescence) have been studied under X-Ray excitation in the temperature interval from 8 K to 400 K, while at the same being operated as a scintillating bolometer at 20 mK for the first time. We demonstrated that LiMg(MoO crystals are a potentially promising detector material to search for neutrinoless double beta decay of Mo.
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