Anomalous Number Fluctuation Noise in Localized Transition Metal Dichalcogenide Layers: Generalization of McWhorter’s Mechanism
| Autor: | Pulickel M. Ajayan, Subhamoy Ghatak, Vidya Kochat, Chandra Sekhar Tiwary, Arindam Ghosh, Yongji Gong, Sanjeev Kaushal, Kimberly Hsieh, Xiang Zhang |
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| Rok vydání: | 2018 |
| Předmět: |
Work (thermodynamics)
Materials science Condensed matter physics Generalization Mechanical Engineering Oxide 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Noise (electronics) chemistry.chemical_compound chemistry Transition metal Mechanics of Materials 0103 physical sciences General Materials Science Charge carrier 010306 general physics 0210 nano-technology Wave function Mechanism (sociology) |
| Zdroj: | MRS Advances. 3:299-305 |
| ISSN: | 2059-8521 |
| Popis: | The mechanism of electrical noise in transition metal dichalcogenides (TMDCs) has mostly been attributed to charge carrier fluctuations between the oxide traps and the conducting channel, in accordance with the McWhorter model. However, the original McWhorter model was formulated for diffusive transport with conducting carriers having extended electronic wave functions. Our work serves to generalize the McWhorter mechanism to include strongly localized systems such as the TMDC family and provides an explanation for the unusual exponential behavior of noise magnitude with temperature. |
| Databáze: | OpenAIRE |
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