title: Charge density waves in individual nanoribbons of orthorhombic-TaS₃.
abstract: Orthorhombic-TaS3 is a quasi-1D material that undergoes a Peierls' transition to become a charge density wave conductor at low temperatures. Electrical transport measurements of individual single-crystalline TaS3 nanoribbons prepared by a novel bottom-up method from elemental precursors indicate a depression of the Peierls' ordering temperature to 205 K, broadening of the electric-field-induced depinning of the charge density wave below the Peierls' transition temperature, and a greatly increased threshold voltage for nucleation of charge density wave dislocations posited to be a result of surface confinement and finite size effects. Single-nanoribbon measurements of broad-band noise indicate discrete phase slip events near the depinning threshold. Three distinct regimes are identified with the normalized noise spectrum showing a distinctive maxima near the threshold voltage for depinning of the charge density wave, corresponding to sampling of different metastable states that balance ordered and sliding charge density waves.
authors.affiliation: Department of Chemistry, Texas A&M University, College Station, TX 77842, USA. banerjee@chem.tamu.edu.
authors.forename: Katie E
authors.initials: KE
authors.lastname: Farley
authors.forename: Zhenzhong
authors.initials: Z
authors.lastname: Shi
authors.forename: G
authors.initials: G
authors.lastname: Sambandamurthy
authors.forename: Sarbajit
authors.initials: S
authors.lastname: Banerjee