First test of Li_2MoO_4 crystal as a cryogenic scintillating bolometer

摘要

Luminescence properties (emission spectra, thermally stimulated luminescence, dependence of intensity on temperature) of lithium molybdate (Li_2MoO_4) single crystal have been studied under X-ray excitation from the liquid nitrogen to room temperature. The applicability of Li_2MoO_4 single crystal as a cryogenic scintillating bolometer was checked for the first time. Both scintillation and heat signals were observed making Li_2MoO_4 material an interesting candidate for searches for neutrinoless double beta decay of ~(100)Mo.