Charge density waves in individual nanoribbons of orthorhombic-TaS₃. Academic Article uri icon

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.

published proceedings

  • Phys Chem Chem Phys

author list (cited authors)

  • Farley, K. E., Shi, Z., Sambandamurthy, G., & Banerjee, S

citation count

  • 4

complete list of authors

  • Farley, Katie E||Shi, Zhenzhong||Sambandamurthy, G||Banerjee, Sarbajit

publication date

  • January 2015