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Scanning Thermal Microscopy and Ballistic Phonon Transport in Lateral Spin Valves.
- Source :
-
Physical Review Letters . 7/16/2021, Vol. 127 Issue 3, p1-1. 1p. - Publication Year :
- 2021
-
Abstract
- Using scanning thermal microscopy, we have mapped the spatial distribution of temperatures in an operating nanoscale device formed from a magnetic injector, an Ag connecting wire, and a magnetic detector. An analytical model explained the thermal diffusion over the measured temperature range (2-300 K) and injector-detector separation (400-3000 nm). The characteristic diffusion lengths of the Peltier and Joule heat differ remarkably below 60 K, a fact that can be explained by the onset of ballistic phonon heat transfer in the substrate. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00319007
- Volume :
- 127
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Physical Review Letters
- Publication Type :
- Academic Journal
- Accession number :
- 151461736
- Full Text :
- https://doi.org/10.1103/PhysRevLett.127.035901