Tunable phase transition in single-layer TiSe2 via electric field

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Phase transition represents an intriguing physical phenomenon that exists in a number of single-layer transition-metal dichalcogenides. This phenomenon often occurs below a critical temperature and breaks the long-range crystalline order leading to a reconstructed superstructure called the charge-density wave (CDW) structure, which can therefore be recovered by external stimuli such as temperature. Alternatively, we show here that another external stimulation, electric field can also result in the phase transition between the regular and CDW structures of a single-layer transition-metal dichalcogenide. We used single-layer TiSe2 as an example to elucidate the mechanism of the CDW followed by calculations of the electronic structure using a hybrid density functional. We found that applying electric field can tune the phase transition between the 1T and CDW phases of single-layer TiSe2. Our work opens up a route of tuning the phase transition of single-layer materials via electric field.

Original languageEnglish (US)
Pages (from-to)309-312
Number of pages4
JournalJournal of Solid State Chemistry
Volume262
DOIs
StatePublished - Jun 1 2018

Fingerprint

Charge density waves
Phase transitions
Electric fields
electric fields
Transition metals
transition metals
Electronic structure
stimulation
Tuning
stimuli
Crystalline materials
critical temperature
Temperature
tuning
routes
electronic structure

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Tunable phase transition in single-layer TiSe2 via electric field. / Liu, Lei; Zhuang, Houlong.

In: Journal of Solid State Chemistry, Vol. 262, 01.06.2018, p. 309-312.

Research output: Contribution to journalArticle

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