Impacts of highly charged ions as seeds in a magneto-structural phase transition of magnetocaloric thin films

S Cervera 1 Martino Trassinelli 2 Massimiliano Marangolo 3 L Bernard-Carlsson 1 Mahmoud Eddrief 3 Victor Etgens 3 V Gafton 1 S Hidki 1 Emmanuelle Lacaze 4 Emily Lamour 2 Christophe Prigent 1, 2 J-P Rozet 1 Sébastien Steydli 2 Yunlin Jacques Zheng 3 Dominique Vernhet 2
1 INSP - Institut des Nanosciences de Paris
2 INSP-E10 - Agrégats et surfaces sous excitations intenses
INSP - Institut des Nanosciences de Paris
3 INSP-E8 - Croissance et propriétés de systèmes hybrides en couches minces
INSP - Institut des Nanosciences de Paris
4 INSP-E6 - Physico-chimie et dynamique des surfaces
INSP - Institut des Nanosciences de Paris
Abstract : Investigation on modifications of structural and magnetic properties of magnetocaloric thin films induced by slow highly charged ions bombardment under well-controlled conditions is presented. The ions induce defects/constraints that facilitate nucleation of one phase with respect to the other in the first-order magnetostructural MnAs, with a consequent suppression of thermal hysteresis, but without any significant perturbation on the other structural and magnetic properties.
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S Cervera, Martino Trassinelli, Massimiliano Marangolo, L Bernard-Carlsson, Mahmoud Eddrief, et al.. Impacts of highly charged ions as seeds in a magneto-structural phase transition of magnetocaloric thin films. Journal of Physics: Conference Series, IOP Publishing, 2015, 635 (3), pp.032021. ⟨10.1088/1742-6596/635/3/032021⟩. ⟨hal-01265737⟩

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