Journal
ADVANCED MATERIALS
Volume 31, Issue 45, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201804682
Keywords
2D materials; metal thiophosphates and selenophosphates; phase transitions; transition metal dichalcogenides; transition metal halides
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Funding
- Key Research Program of Frontier Sciences of CAS [QYZDB-SSW-SYS031]
- Strategic Priority Research Program of CAS [XDB30000000]
- NSFC [21673058, 21822502]
- Beijing Nova Program-Joint Project [Z171100001117129]
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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 Cr2Ge2Te6, is reviewed.
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