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The effect of Cr composition on the local atomic and magnetic structure of pristine and ion-irradiated FeCr alloys

Publications associées (129)

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CePd2Al2Ga Kondo-lattice under high pressure

We report electrical resistance measurements under hydrostatic (up to 0.9 GPa) and quasi-hydrostatic pressure (beyond 1 GPa) in the ferromagnetic (FM) CePd2Al2Ga Kondo-lattice compound. From the analysis of the electrical resistance data we obtained the ma ...

Elsevier2007

Million-atom molecular dynamics simulations of magnetic iron

The problem of large-scale molecular dynamics simulations of iron has recently attracted attention in connection with the need to understand the microscopic picture of radiation damage in ferritic steels. In this paper we review the development of a new in ...

2007

Shock-induced metallic iron nanoparticles in olivine-rich Martian meteorites

Philippe Gillet, Pierre Beck

Magnetic anomalies observed by the Mars Global Surveyor mission are attributed to crustal remanence. SNC (Shergotty-Nakhla-Chassigny) meteorites are likely samples of the Martian crust and are amenable to mineralogical and magnetic measurements essential t ...

2007

Spin resonance in the ordered magnetic state of Ni-5(TeO3)(4)Cl-2

László Forró, Helmuth Berger, Bálint Náfrádi

The transition metal tellurium oxychloride, Ni-5(TeO3)(4)Cl-2, has been investigated by high-field electron-spin resonance for frequencies up to 3 THz, at temperatures well below the magnetic ordering at 23 K. At zero external field several resonance modes ...

2006

The Nd–Mn exchange interaction in Nd

Jean-Philippe Ansermet

The Nd-Mn exchange interaction in Nd0.7Sr0.3MnO3 is considered by studying its influence on the Mn-55 spin-echo NMR lineshape and spin- spin relaxation time. It is seen that the interaction is of considerable strength well above the Nd spin ordering temper ...

2006

Ferromagnetism at Room Temperature on Electrodeposited Co2+-Doped ZnO Thin Film

Jean-Philippe Ansermet, Jean-Pierre Abid

Predicted by the theory, ferromagnetism is expected in Co-doped ZnO. Recently, ferromagnetism above room temperature was reported in thin films as well as in bulk samples made of cobalt-doped zinc oxide. In this study, we report the preparation of ZnO dope ...

2006

Growth and magnetism of low-dimensional metallic nanostructures on the Pt(997) surface

The thesis presents experimental results on the growth and magnetism of metallic nanostructures on the vicinal Pt surface. The aim of the research project consists of two parts: First, to find conditions for growing nanostructures of dimensionalities from ...

EPFL2005

Paramagnetic Mn impurities on Ge and GaAs surfaces

Harald Brune, Pietro Gambardella

Individual Mn impurities deposited on Ge(100), Ge(111), and GaAs(110) substrates present magnetic moments significantly larger compared to the average Mn magnetization in bulklike Ga1-xMnxAs and MnxGe1-x dilute magnetic semiconductors. The Mn magnetic mome ...

2005

High tunnel magnetoresistance in spin-polarized scanning tunneling microscopy of Co nanoparticles on Pt(111)

Harald Brune, Stefano Rusponi, Nicolas Weiss

We employ variable-temperature spin-polarized scanning tunneling microscopy in constant current mode to read the magnetic state of monodomain cobalt nanoparticles on Pt(111). In order to avoid stray fields we use in situ prepared antiferromagnetically (Cr) ...

2005

Magnetic properties of pure and Gd-doped EuO probed by NMR

Jean-Philippe Ansermet, Arnaud Comment

An Eu NMR study in the ferromagnetic phase of pure and Gd-doped EuO was performed. A complete description of the NMR line shape of pure EuO allowed for the influence of doping EuO with Gd impurities to be highlighted. The presence of a temperature-dependen ...

2005