Charge modulation and structural transformation in TaTe2 studied by scanning tunneling microscopy/spectroscopy
- Michigan State Univ., East Lansing, MI (United States). Dept. of Physics and Astronomy
- Tulane Univ., New Orleans, LA (United States). Dept. of Physics and Engineering Physics
Here, we show that the (3 × 1) stripe structure observed in TaTe2 at room temperature arises from the formation of Ta4+–Ta4+ dimer chains along with a separate chain of Ta3+. More importantly, we reveal an intriguing lattice distortion and charge modulation at low temperature, which suggests an interplay and competition between the triple-axis (3 × 3) charge density wave-like modulation and the single-axis (3 × 1) stripe configuration. This work highlights the importance of TaTe2 as an alternative platform with rich structural and electrical phases to explore charge-lattice coupling.
- Research Organization:
- Michigan State Univ., East Lansing, MI (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
- Grant/Contract Number:
- SC0006400; DMR-1410417; SC0012432
- OSTI ID:
- 1467851
- Alternate ID(s):
- OSTI ID: 1261219
- Journal Information:
- Applied Physics Letters, Vol. 109, Issue 2; ISSN 0003-6951
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 20 works
Citation information provided by
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