Charge modulation and structural transformation in TaTe2 studied by scanning tunneling microscopy/spectroscopy

Jiagui Feng, Andrew Tan, Sean Wagner, Jinyu Liu, Zhiqiang Mao, Xianglin Ke, Pengpeng Zhang

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Article number021901
JournalApplied Physics Letters
Volume109
Issue number2
DOIs
StatePublished - Jul 11 2016

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scanning tunneling microscopy
modulation
spectroscopy
platforms
dimers
room temperature
configurations

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

Cite this

Feng, Jiagui ; Tan, Andrew ; Wagner, Sean ; Liu, Jinyu ; Mao, Zhiqiang ; Ke, Xianglin ; Zhang, Pengpeng. / Charge modulation and structural transformation in TaTe2 studied by scanning tunneling microscopy/spectroscopy. In: Applied Physics Letters. 2016 ; Vol. 109, No. 2.
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Charge modulation and structural transformation in TaTe2 studied by scanning tunneling microscopy/spectroscopy. / Feng, Jiagui; Tan, Andrew; Wagner, Sean; Liu, Jinyu; Mao, Zhiqiang; Ke, Xianglin; Zhang, Pengpeng.

In: Applied Physics Letters, Vol. 109, No. 2, 021901, 11.07.2016.

Research output: Contribution to journalArticle

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AU - Zhang, Pengpeng

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