Electronic Thermal Transport Measurement in Low-Dimensional Materials with Graphene Nonlocal Noise Thermometry
| Autor: | Artem Talanov, Mehdi Rezaee, Xiaowen Feng, Takashi Taniguchi, Jonah Waissman, Daniel G. Nocera, Laurel E. Anderson, Danial Haei Najafabadi, Young Jae Shin, Zhongying Yan, Konstantin A. Matveev, Philip Kim, Kenji Watanabe, Brian Skinner |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Mesoscopic physics
Condensed Matter - Materials Science Materials science Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics Strongly Correlated Electrons (cond-mat.str-el) Graphene Phonon Biomedical Engineering Macroscopic quantum phenomena Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Bioengineering Carbon nanotube Condensed Matter Physics Noise (electronics) Atomic and Molecular Physics and Optics Thermal conductance quantum law.invention Condensed Matter - Strongly Correlated Electrons Thermal conductivity law Mesoscale and Nanoscale Physics (cond-mat.mes-hall) General Materials Science Electrical and Electronic Engineering |
| DOI: | 10.48550/arxiv.2101.01737 |
| Popis: | In low-dimensional systems, the combination of reduced dimensionality, strong interactions, and topology has led to a growing number of many-body quantum phenomena. Thermal transport, which is sensitive to all energy-carrying degrees of freedom, provides a discriminating probe of emergent excitations in quantum materials and devices. However, thermal transport measurements in low dimensions are dominated by the phonon contribution of the lattice, requiring an experimental approach to isolate the electronic thermal conductance. Here, we show how the measurement of nonlocal voltage fluctuations in a multiterminal device can reveal the electronic heat transported across a mesoscopic bridge made of low-dimensional materials. By using 2-dimensional graphene as a noise thermometer, we demonstrate quantitative electronic thermal conductance measurements of graphene and carbon nanotubes up to 70 K, achieving a precision of ~1% of the thermal conductance quantum at 5 K. Employing linear and nonlinear thermal transport, we observe signatures of long-range interaction-mediated energy transport in 1-dimensional electron systems, in agreement with a theoretical model. Our versatile nonlocal noise thermometry allows new experiments probing energy transport in emergent states of matter and devices in low dimensions. Comment: Authors' revision. Main text: 11 pages, 4 figures. Supplementary information: 26 pages, 11 figures. Methods and references included. Published in Nature Nanotechnology |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|