Personne
Simon Granville
Cette personne n’est plus à l’EPFL
Publications associées (19)
Evidence for Thermal Spin-Transfer Torque
Jean-Philippe Ansermet, Haiming Yu, Simon Granville
Large heat currents are obtained in Co/Cu/Co spin valves positioned at the middle of Cu nanowires. The second harmonic voltage response to an applied current is used to investigate the effect of the heat current on the switching of the spin valves. Both th ...
American Physical Society2010Temperature derivative of the resistance of spin valves
Jean-Philippe Ansermet, Haiming Yu, Simon Granville, Julie Dubois
Spin-dependent transport properties of nanowires containing individual Co/Cu/Co pseudo-spin valves were investigated by monitoring an AC voltage induced by a temperature oscillation under a continuous DC current. We observed sharp peaks in the field-depend ...
Elsevier2010Vibrational properties of rare-earth nitrides: Raman spectra and theory
Simon Granville, Harry Joseph Trodahl
Raman spectra are presented for the rare-earth nitrides SmN, GdN, DyN, ErN, and LuN measured with 633 and 514 nm excitation wavelengths and at temperatures above and below the Curie temperature. Frozen-phonon calculations are presented for the phonons at G ...
2009Current susceptibility of magnetization in spin valves
Jean-Philippe Ansermet, Haiming Yu, Simon Granville, Julie Dubois
We observed the second harmonic voltage response of pseudo-spin valves subjected to currents oscillating at frequencies in the sub-kilohertz range. Peaks appear in its magnetic field dependence, with a signal-to-noise ratio equal to or greater than the mag ...
2009Electrodeposition and Characterization of Bismuth Telluride Nanowires
In this work, we report thermoelectric measurements on electroplated bismuth telluride nanowires. Porous polycarbonate membranes, obtained by ion-track irradiation lithography, were chosen as electroplating templates. Bismuth telluride nanowires were achie ...
2009Near-zero-moment ferromagnetism in the semiconductor SmN
Simon Granville, Harry Joseph Trodahl
The magnetic behavior of SmN has been investigated in stoichiometric polycrystalline films. All samples show ferromagnetic order with Curie temperature (T-C) of 27 3 K, evidenced by the occurrence of hysteresis below T-C. The ferromagnetic state is charact ...
2008Preparation and Properties of Cobalt Doped ZnO Nanowires
Jean-Philippe Ansermet, Simon Granville
The template method was used for preparing Zn1-xCoxO nanowires with x ranging from 0.01 to 0.05. Thus, electrochemical deposition was employed for filling up the pores of polycarbonate ion track nanoporous membranes with the desired material. The method al ...
Institute of Electrical and Electronics Engineers2008Charge trapping effects in photovoltage measurements of (Ga,Mn)As
Jean-Philippe Ansermet, Simon Granville
We report charge trapping effects in a ferromagnetic (Ga,Mn)As thin film observed during measurements of the photovoltage under inhomogeneous illumination conditions. Using a laser diode as the excitation source, the temperature-dependent response has been ...
2008Portfolio optimization of hydroelectric assets subject to financial indicators
Nikolaos Iliadis, Simon Granville
The objective of this article is to present a benchmarking of financial indicators implemented in hydroelectric stochastic risk management models. We present three model formulations using a tree approach for hydroelectric optimization using three procedur ...
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