Scanning Tunneling Microscopy of the Nearly-Commensurate and Incommensurate Charge Density Wave Phases of 1T-TaS₂

1T-TaS₂ is an intensely-studied charge density wave (CDW) compound which hosts a wealth of interesting and diverse physics. At low temperatures, 1T-TaS₂ is in a Mott insulating, commensurate CDW state. At higher temperatures, the material can enter into triclinic, nearly-commensurate, and incommensurate CDW states. Studies across all four CDW states using multiple experimental techniques have been conducted, but considerable emphasis has been on the low-temperature commensurate CDW state. Here we present our scanning tunneling microscopy measurements on the higher-temperature nearly-commensurate and incommensurate CDW phases with a focus on domains, domain walls, and their changes with temperature.