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

S Cervera; Martino Trassinelli; Massimiliano Marangolo; L Bernard-Carlsson; Mahmoud Eddrief; Victor Etgens; V Gafton; S Hidki; Emmanuelle Lacaze; Emily Lamour; Christophe Prigent; J-P Rozet; Sébastien Steydli; Yunlin Jacques Zheng; Dominique Vernhet

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.

Document type :

Journal articles

Domain :

Physics [physics] / Condensed Matter [cond-mat]

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

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

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