Thickness dependent charge density wave networks on thin 1T-TaS
arXiv:2212.12128 · doi:10.1007/s40042-023-00704-1
Abstract
We investigate mechanically exfoliated thin 1T-TaS with scanning tunneling microscopy at room temperature. Sample preparation without air exposure enables access to intrinsic charge-density-wave (CDW) phases of thin 1T-TaS. At room temperature, we can observe the expected nearly commensurate CDW (NCCDW) phase on thin flakes similar to bulk 1T-TaS. Further analysis reveals that the CDW domains in the NCCDW phase become smaller and have more anisotropic shape with decreasing thickness in the range of 8-28 layers. Our findings demonstrate that the anisotropic CDW nature of thin 1T-TaS would be crucial to understand its exotic CDW-related phenomena and demand a systematic study on its correlation between the thickness-driven CDW domain anisotropy and the intermediate CDW states in thin 1T-TaS.
arXiv comment5 pages, 4 figures
References in corpus (16)
- 2D materials and van der Waals heterostructures
- Gate-tunable Phase Transitions in 1T-TaS
- Ultrafast switching to a stable hidden topologically protected quantum state in an electronic crystal
- Is 1T-TaS a 40 year old quantum spin liquid?
- Memristive phase switching in two-dimensional crystals
- Structure and Control of Charge Density Waves in Two-Dimensional 1T-TaS2
- Fast non-thermal switching between macroscopic charge-ordered quantum states induced by charge injection
- Mottness versus unit-cell doubling as the driver of the insulating state in 1T-TaS2
- Ultrafast jamming of electrons into an amorphous entangled state
- Intertwined chiral charge orders and topological stabilization of the light-induced state of a prototypical transition metal dichalcogenide
- Distinct surface and bulk charge density waves in ultrathin 1T-TaS2
- Total Ionizing Dose Effects on Threshold Switching in 1T-Tantalum Disulfide Charge-Density-Wave Devices
- Superconductivity emerging from a stripe charge order in IrTe2 nanoflakes
- Photocurrent Imaging of Multi-Memristive Charge Density Wave Switching in Two-Dimensional 1T-TaS2
- Realization of metallic state in 1T-TaS2 with persisting long-range order of charge density wave
- In-situ scanning tunneling microscopy observation of thickness-dependent air-sensitive layered materials and heterodevices