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7 papers · 2 filters
Engineering two-dimensional electron gases at the (001) and (101) surfaces of TiO2 anatase using light
T. C. Rödel, F. Fortuna, F. Bertran +4
We report the existence of metallic two-dimensional electron gases (2DEGs) at the (001) and (101) surfaces of bulk-insulating TiO2 anatase due to local chemical doping by oxygen va…
Enhanced Seebeck effect in graphene devices by strain and doping engineering
Mai Chung Nguyen, Viet Hung Nguyen, Huy-Viet Nguyen +2
In this work, we investigate the possibility of enhancing the thermoelectric power (Seebeck coefficient) in graphene devices by strain and doping engineering. While a local strain…
Effect of the porosity on the fracture surface roughness of sintered materials: From anisotropic to isotropic self-affine scaling
Tristan Cambonie, Jonathan Bares, Lamine Hattali +3
To unravel how the microstructure affects the fracture surface roughness in heterogeneous brittle solids like rocks or ceramics, we characterized the roughness statistics of post-m…
Interfacial Dzyaloshinskii-Moriya interaction in perpendicularly-magnetized Pt/Co/AlO ultrathin films measured by Brillouin light spectroscopy
Mohamed Belmeguenai, Jean-Paul Adam, Yves Roussigné +6
Spin waves in perpendicularly-magnetized Pt/Co/AlO/Pt ultrathin films with varying Co thicknesses (0.6-1.2 nm) have been studied with Brillouin light spectroscopy in the Damon-…
Irreversible transformation of ferromagnetic ordered stripe domains in single-shot IR pump - resonant X-ray scattering probe experiments
Nicolas Bergeard, Stefan Schaffert, Víctor López-Flores +21
The evolution of a magnetic domain structure upon excitation by an intense, femtosecond Infra-Red (IR) laser pulse has been investigated using single-shot based time-resolved reson…
Modulation and amplification of radiative far field heat transfer: Towards a simple radiative thermal transistor
Karl Joulain, Younès Ezzahri, Jérémie Drevillon +1
We show in this article that phase change materials (PCM) exhibiting a phase transition between a dielectric state and a metallic state are good candidates to perform modulation as…