• Publications
  • Influence
Neutron spectroscopic study of crystal-field excitations and the effect of the crystal field on dipolar magnetism in LiRF4 (R = Gd, Ho, Er, Tm, and Yb)
We present a systematic study of the crystal-field interactions in the LiRF4 (R = Gd, Ho, Er, Tm, and Yb) family of rare-earth magnets. Using detailed inelastic neutron scattering measurements, weExpand
  • 11
  • 1
  • PDF
Autoresonant control of the magnetization switching in single-domain nanoparticles
The ability to control the magnetization switching in nanoscale devices is a crucial step for the development of fast and reliable techniques to store and process information. Here we show that theExpand
  • 16
  • PDF
Autoresonant switching of the magnetization in single-domain nanoparticles: Two-level theory
The magnetic moment of a single-domain nanoparticle can be effectively switched on an ultrashort time scale by means of oscillating (microwave) magnetic fields. This switching technique can beExpand
  • 9
  • PDF
Effect of Disorder and Dipolar Interactions in Two-Dimensional Assemblies of Iron-Oxide Magnetic Nanoparticles
We examine the magnetic properties of two-dimensional monolayers of iron-oxide magnetic nanoparticles arranged on a hexagonal lattice and interacting through magnetic dipole forces. Monte CarloExpand
  • 5
Simulated annealing study of the disordered quantum magnet LiHoxEryY1-x-yF4
Thermal and quantum phase transitions of some rare earth compounds (LiErF4, LiYbF4, LiGdF4 and LiTmF4) are established using the mean field theory. These preliminary calculations allowed evidencingExpand
O ct 2 01 5 Neutron spectroscopic study of crystal-field excitations and the effect of the crystal field on dipolar magnetism in
P. Babkevich, ∗ A. Finco, 2 M. Jeong, B. Dalla Piazza, I. Kovacevic, G. Klughertz, 3 K. W. Krämer, C. Kraemer, D. T. Adroja, E. Goremychkin, T. Unruh, 7 T. Strässle, A. Di Lieto, 10 J. Jensen, and H.Expand
Spin-torque switching and control using chirped AC currents
We propose to use oscillating spin currents with slowly varying frequency (chirp) to manipulate and control the magnetization dynamics in a nanomagnet. By recasting the Landau–Lifshitz–SlonczewskiExpand
  • 1
  • PDF
Dynamique d'aimantation ultra-rapide de nanoparticules magnétiques
L’objectif de cette these est d’explorer analytiquement et numeriquement la dynamique d’aimantation de nanoparticules magnetiques. Nous montrons qu’il est possible de controler efficacement leExpand
Magnetization Reversal in a Cobalt Nanoparticle
We study the magnetization reversal of isolated and interacting single-domain cobalt nanoparticles with uniaxial anisotropy under the macrospin approximation. We analyze the consequences of dipolarExpand