Growth and characterization of a Li2Mg2(MoO4)3 scintillating bolometer

Abstract

Lithium magnesium molybdate (Li${}_2$Mg${}_2$(MoO${}_4$)${}_3$) 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 Li${}_2$Mg${}_2$(MoO${}_4{)}_3$ crystals are a potentially promising detector material to search for neutrinoless double beta decay of ${}^{100}$Mo.

arXiv comment26 pages, 13 figures, 2 tables, 55 references

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