The spontaneous symmetry breaking in Ta2NiSe5 is structural in nature.
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DOI: 10.1073/pnas.2221688120
Abstract: The excitonic insulator is an electronically driven phase of matter that emerges upon the spontaneous formation and Bose condensation of excitons. Detecting this exotic order in candidate materials is a subject of paramount importance, as… read more here.
Keywords: spontaneous symmetry; breaking ta2nise5; symmetry breaking; phase ... See more keywords