Topological Crystalline Insulator Pb1-x Snx Se Nanowires with {100} Facets.

ABSTRACT

Surface states properties of topological crystalline insulator Pb1-x Snx Se are strongly dependent on crystallographic plane orientation. Rectangular prismatic Pbx Sn1-x Se nanowires and nanoplates are grown with distinct {100} surfaces on mica sheets. Substrate surface chemical properties are found to be the critical factors that affect the vapor deposition process and final shapes of Pb1-x Snx Se nanostructures.