Julian J. Hsieh
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
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.
Julian J. Hsieh
Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
F.J. Himpsel, T.A. Jung, et al.
Surface Review and Letters
G. Will, N. Masciocchi, et al.
Zeitschrift fur Kristallographie - New Crystal Structures
R.J. Gambino, N.R. Stemple, et al.
Journal of Physics and Chemistry of Solids