First test of crystal as a cryogenic scintillating bolometer

Luminescence properties (emission spectra, thermally stimulated luminescence, dependence of intensity on temperature) of lithium molybdate ( Li 2 MoO 4 ) single crystal have been studied under X-ray excitation from the liquid nitrogen to room temperature. The applicability of Li 2 MoO 4 single crystal as a cryogenic scintillating bolometer was checked for the first time. Both scintillation and heat signals were observed making Li 2 MoO 4 material an interesting candidate for searches for neutrinoless double beta decay of 100Mo.