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6 papers · 2 filters
Reciprocal and real space maps for EMCD experiments
Hans Lidbaum, Jan Rusz, Stefano Rubino +5
Electron magnetic chiral dichroism (EMCD) is an emerging tool for quantitative measurements of magnetic properties using the transmission electron microscope (TEM), with the possib…
Ab initio study of atomic ordering and spin-glass transition in dilute CuMn alloys
O. E. Peil, A. V. Ruban, B. Johansson
An archetypical spin-glass metallic alloy, Cu0.83Mn0.17, is studied by means of an ab-initio based approach. First-principles calculations are employed to obtain effective chemical…
Influence of laser-excited electron distributions on the x-ray magnetic circular dichroism spectra: Implications for femtosecond demagnetization in Ni
K. Carva, D. Legut, P. M. Oppeneer
In pump-probe experiments an intensive laser pulse creates non-equilibrium excited electron distributions in the first few hundred femtoseconds after the pulse. The influence of no…
Mild sonochemical exfoliation of bromine-intercalated graphite: a new route towards graphene
E. Widenkvist, D. W. Boukhvalov, S. Rubino +7
A method to produce suspensions of graphene sheets by combining solution-based bromine intercalation and mild sonochemical exfoliation is presented. Ultrasonic treatment of graphit…
The making of ferromagnetic Fe doped ZnO nano-clusters
Nirmal Ganguli, Indra Dasgupta, Biplab Sanyal
In this letter, the authors present a study of the energetics and magnetic interactions in Fe doped ZnO clusters by ab-initio density functional calculations. The results indicate…
Landauer theory of ballistic torkances in non-collinear spin valves
K. Carva, I. Turek
We present a theory of voltage-induced spin-transfer torques in ballistic non-collinear spin valves. The torkance on one ferromagnetic layer is expressed in terms of scattering coe…