Low-Frequency Noise and Sliding of the Charge Density Waves in Two-Dimensional Materials

Abstract

There has been a recent renewal of interest in charge-density-wave (CDW) phenomena, primarily driven by the emergence of two-dimensional (2D) layered CDW materials, such as 1T-TaS2, characterized by very high transition temperatures to CDW phases. In the extensively studied classical bulk CDW materials with quasi-1D crystal structure, the charge carrier transport exhibits intriguing sliding behavior, which reveals itself in the frequency domain as "narrowband" and "broadband" noise. Despite the increasing attention on physics of 2D CDWs, there have been few reports of CDW sliding, specifically in quasi-2D rare-earth tritellurides and none on the noise in any of 2D CDW systems. Here we report the results of low-frequency noise (LFN) measurements on 1T-TaS2 thin films - archetypal 2D CDW systems, as they are driven from the nearly commensurate (NC) to incommensurate (IC) CDW phases by voltage and temperature stimuli. We have found that noise in 1T-TaS2 devices has two pronounced maxima at the bias voltages, which correspond to the onset of CDW sliding and the NC-to-IC phase transition. We observed unusual Lorentzian noise features and exceptionally strong noise dependence on electric bias and temperature. We argue that LFN in 2D CDW systems has unique physical origin, different from known fundamental noise types. The specifics of LFN in 2D CDW materials can be explained by invoking the concept of interacting discrete fluctuators in the NC-CDW phase. Noise spectroscopy can serve as a useful tool for understanding electronic transport phenomena in 2D CDW materials characterized by coexistence of different phases and strong CDW pinning.

arXiv comment18 pages; 3 figures

References in corpus (13)

• Gate-tunable Phase Transitions in 1T-TaS${}_2$
• Ultrafast switching to a stable hidden topologically protected quantum state in an electronic crystal
• Inhomogeneity of charge density wave order and quenched disorder in a high Tc superconductor
• A metallic mosaic phase and the origin of Mott insulating state in 1T-TaS2
• Structure and Control of Charge Density Waves in Two-Dimensional 1T-TaS2
• Fast non-thermal switching between macroscopic charge-ordered quantum states induced by charge injection
• Emergence of coherence in the charge-density wave state of 2H-NbSe${}_2$
• Sliding charge density wave in manganites
• The Commensurate-Incommensurate Charge-Density-Wave Transition and Phonon Zone Folding in 1T-TaSe2 Thin Films
• Sliding charge-density-wave in two-dimensional rare-earth tellurides
• Total Ionizing Dose Effects on Threshold Switching in 1T-Tantalum Disulfide Charge-Density-Wave Devices
• Quantum phase transition in few-layer NbSe${}_2$ probed through quantized conductance fluctuations
• Resistance noise at the metal-insulator transition in thermochromic VO2 films

Cited by in corpus (16)

• Electric Switching of the Charge-Density-Wave and Normal Metallic Phases in Tantalum Disulfide Thin-Film Devices
• Low Resistivity and High Breakdown Current Density of 10-nm Diameter van der Waals TaSe3 Nanowires by Chemical Vapor Deposition
• Photoexcitation Induced Quantum Dynamics of Charge Density Wave and Emergence of a Collective Mode in 1T-TaS${}_2$
• Two Phonon Interactions and Charge Density Wave in Single Crystalline VSe2 Probed by Raman Spectroscopy
• Out-of-plane transport of 1T-TaS2/graphene-based van der Waals heterostructures
• Proton-Irradiation-Immune Electronics Implemented with Two-Dimensional Charge-Density-Wave Devices
• Low-Frequency Noise Spectroscopy of Charge-Density-Wave Phase Transitions in Vertical Quasi-2D Devices
• Depinning of the Charge-Density Waves in Quasi-2D 1T-TaS2 Devices Operating at Room Temperature
• Current Oscillations in Quasi-2D Charge-Density-Wave 1T-TaS2 Devices: Revisiting the "Narrow Band Noise" Concept
• Low-Frequency Noise Characteristics of GaN Vertical PIN Diodes -- Effects of Current and Temperature
• Low-Frequency Electronic Noise in Superlattice and Random-Packed Thin Films of Colloidal Quantum Dots
• Dynamic ordering transitions in charged solid
• Noise and Thermal Depinning of Wigner Crystals
• Observation of the charge density wave collective mode in the infrared optical response of VSe${}_2$
• Low-Frequency Noise in Low-Dimensional van der Waals Materials
• Magnetic Field Effects and Transverse Ratchets in Charge Lattices Coupled to Asymmetric Substrates