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Scanning tunnelling microscopy study of the charge-density wave in Hf-doped 1T-TaS2
- Source :
- Journal of Physics: Condensed Matter. 12:4353-4363
- Publication Year :
- 2000
- Publisher :
- IOP Publishing, 2000.
-
Abstract
- The effect of doping with Hf atoms on the nearly commensurate (NC) charge-density-wave (CDW) structures of 1T-TaS2 was investigated using scanning tunnelling microscopy (STM) at room temperature, for levels of substitution of Hf for Ta up to 6.9%. It was found that the Hf atom introduces a point defect to the CDW superlattice at the CDW domain boundary for lower contents. For Hf contents higher than 1%, the CDW superlattice melted and a distorted structure was observed instead of the usual CDW superlattice. The change of the CDW structure observed by STM was compared with the change of the ρ-T characteristics.
- Subjects :
- Condensed Matter::Quantum Gases
Condensed matter physics
Chemistry
Superlattice
Doping
Electronic structure
Condensed Matter Physics
Crystallographic defect
Condensed Matter::Materials Science
Condensed Matter::Superconductivity
Microscopy
Atom
Condensed Matter::Strongly Correlated Electrons
General Materials Science
Charge density wave
Quantum tunnelling
Subjects
Details
- ISSN :
- 1361648X and 09538984
- Volume :
- 12
- Database :
- OpenAIRE
- Journal :
- Journal of Physics: Condensed Matter
- Accession number :
- edsair.doi...........6f0eeffb9878d8a87049f8d19b4df395
- Full Text :
- https://doi.org/10.1088/0953-8984/12/19/306