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10 papers · 1 filter
Magnetic bubbles in FePd thin films near saturation
Thomas Jourdan, Aurélien Masseboeuf, Alain Marty +2
The structure of domain walls delimiting magnetic bubbles in L10 FePd thin layers is described on the basis of Lorentz transmission electron microscopy (LTEM) and multiscale magnet…
How many bits may fit in a single magnetic dot? XMCD-PEEM evidences the switching of Néel caps inside Bloch domain walls
Fabien Cheynis, Aurélien Masseboeuf, Olivier Fruchart +5
Data storage relies on the handling of two states, called bits. The market of mass storage is currently still dominated by magnetic technology, hard disk drives for the broad publi…
Quantitative Observation of Magnetic Flux Distribution in New Magnetic Films for Future High Density Recording Media
Aurélien Masseboeuf, A. Marty, Pascale Bayle-Guillemaud +2
Off-axis electron holography was used to observe and quantify the magnetic microstructure of a perpendicular magnetic anisotropic (PMA) recording media. Thin foils of PMA materials…
Anomalous Doping Effects on Charge Transport in Graphene Nanoribbons
Blanca Biel, X. Blase, François Triozon +1
We present first-principles calculations of quantum transport in chemically doped graphene nanoribbons with a width of up to 4 nm. The presence of boron and nitrogen impurities is…
Spin injection in Silicon at zero magnetic field
L. Grenet, M. Jamet, P. Noé +7
In this letter, we show efficient electrical spin injection into a SiGe based \textit{p-i-n} light emitting diode from the remanent state of a perpendicularly magnetized ferromagne…
From diluted magnetic semiconductors to self-organized nanocolumns of GeMn in Germanium
Samuel Tardif, Ing-Song Yu, Thibault Devillers +6
While achieving high Curie temperatures (above room temperature) in diluted magnetic semiconductors remains a challenge in the case of well controlled homogeneous alloys, several s…