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  • Title: Potential 2D Materials with Phase Transitions: Structure, Synthesis, and Device Applications.
    Author: Wang X, Song Z, Wen W, Liu H, Wu J, Dang C, Hossain M, Iqbal MA, Xie L.
    Journal: Adv Mater; 2019 Nov; 31(45):e1804682. PubMed ID: 30393917.
    Abstract:
    Layered materials with phase transitions, such as charge density wave (CDW) and magnetic and dipole ordering, have potential to be exfoliated into monolayers and few-layers and then become a large and important subfamily of two-dimensional (2D) materials. Benefitting from enriched physical properties from the collective interactions, long-range ordering, and related phase transitions, as well as the atomic thickness yet having nondangling bonds on the surface, 2D phase-transition materials have vast potential for use in new-concept and functional devices. Here, potential 2D phase-transition materials with CDWs and magnetic and dipole ordering, including transition metal dichalcogenides, transition metal halides, metal thio/selenophosphates, chromium silicon/germanium tellurides, and more, are introduced. The structures and experimental phase-transition properties are summarized for the bulk materials and some of the obtained monolayers. In addition, recent experimental progress on the synthesis and measurement of monolayers, such as 1T-TaS2 , CrI3 , and Cr2 Ge2 Te6 , is reviewed.
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