Raman spectrum of 8 L GaSe taken at two different times during time evolution map. (a) Red dashed line is drawn as the guide for the eye. The constant intensity ratio of of ${{{A}}^{1}}_{1{\rm{g}}}$ ...
Scientists have demonstrated a high-performing thermoelectric material in a practical form that can be used in device development. The material -- purified tin selenide in polycrystalline form -- ...
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