Author

A. Comment

results may include different authors with the same name

4 papers

The phase transition in the localized ferromagnet EuO probed by muSR

We report results of muon spin rotation measurements performed on the ferromagnetic semiconductor EuO, which is one of the best approximations to a localized ferromagnet. We argue that implanted muons are sensitive to the internal field…

Materials Science · Physics 2010-09-15 S. J. Blundell , T. Lancaster , F. L. Pratt , P. J. Baker , W. Hayes , J. -P. Ansermet , A. Comment

Evolution of magnetic polarons and spin-carrier interactions through the metal-insulator transition in Eu$_{1-x}$Gd$_{x}$O

Raman scattering studies as functions of temperature, magnetic field, and Gd-substitution are used to investigate the evolution of magnetic polarons and spin-carrier interactions through the metal-insulator transition in…

Strongly Correlated Electrons · Physics 2009-11-07 H. Rho , C. S. Snow , S. L. Cooper , Z. Fisk , A. Comment , J-Ph Ansermet

Spin dependent scattering of a domain-wall of controlled size

Magnetoresistance measurements in the CPP geometry have been performed on single electrodeposited Co nanowires exchange biased on one side by a sputtered amorphous GdCo layer. This geometry allows the stabilization of a single domain wall…

Materials Science · Physics 2009-10-31 J. -E. Wegrowe , A. Comment , Y. Jaccard , J. -Ph. Ansermet , N. M. Dempsey , J-P. Nozieres

Magnetic Polarons and the Metal-Semiconductor Transition in (Eu,La)B6 and EuO: Raman Scattering Studies

We present inelastic light scattering measurements of EuO and Eu$_{1-x}$La$_{x}$B$_6$ ($x$=0, 0.005, 0.01, 0.03, and 0.05) as functions of doping, B isotope, magnetic field, and temperature. Our results reveal a variety of distinct regimes…

Strongly Correlated Electrons · Physics 2009-10-31 C. S. Snow , S. L. Cooper , D. P. Young , Z. Fisk , A. Comment , J-Ph. Ansermet