183 citations · 337 across the 7 of their papers we have counts for
5 papers · 1 filter
Large phonon-drag thermopower polarity reversal in Ba-doped KTaO3
Mohamed Nawwar, Samuel Poage, Tobias Schwaigert +6
This study reports the observation of phonon-drag thermopower polarity reversal in Ba-doped KTaO3 thin films, mediated by electron-phonon Umklapp scattering. Epitaxial films with d…
Electric field dependent thermal conductivity of relaxor ferroelectric PMN-33PT through changes in the phonon spectrum
Delaram Rashadfar, Brandi L. Wooten, Joseph P. Heremans
In ferroelectric materials, an electric field has been shown to change the phonon dispersion sufficiently to alter the lattice thermal conductivity, opening the possibility that a…
Scalable Nernst Thermoelectric Power using a Coiled Galfenol Wire
Zihao Yang, Emilio A. Codecido, Jason Marquez +3
The Nernst thermopower usually is considered far too weak in most metals for waste heat recovery. However, its transverse orientation gives it an advantage over the Seebeck effect…
Anisotropic defect-induced ferromagnetism and transport in Gd-doped GaN two-dimensional electron gasses
Zihao Yang, Thomas F. Kent, Jing Yang +3
Here we report on the effect of rare earth Gd-doping on the magnetic properties and magnetotransport of GaN two-dimensional electron gasses (2DEGs). Samples are grown by plasma-ass…
Phonon driven spin distribution due to the spin-Seebeck effect
C. M. Jaworski, J. Yang, S. Mack +3
Here we report on measurements of the spin-Seebeck effect of GaMnAs over an extended temperature range alongside the thermal conductivity, specific heat, magnetization, and thermoe…