Finite size effects on the metamagnetic phase transition in a thick B2 FeRh nanocluster film
Year: 2024
Type: article
Abstract: FeRh alloys in the CsCl-type (B2) chemically ordered phase present an antiferromagnetic to ferromagnetic order transition around 370 K observed in bulk and continuous films but absent in nanoclusters. In this study, we investigate the thermal magnetic behavior of a thick film composed of assembled FeRh nanoclusters preformed in the gas phase. This work reveals a broad and asymmetric metamagnetic transition with a consequent residual magnetization at low temperature. Due to the coexistence of different grain sizes in the sample, we confront the results with a description that involves two populations of B2-FeRh particles, and the existence of a discriminating size below which the magnetic order transition does not take place.
Source: Nanoscale
DOI: 10.1039/d4nr00873a
Authors: Guillermo Herrera, Anthony Robert, Sara Gonzalez, Patrick Schoeffmann, Alexandre Tamion, Florent Tournus, Laurent Bardotti, Olivier Boisron, Clément Albin, Nicholas Blanchard, Ingrid Canero-Infante, Pedro Rojo Romeo, Bruno Canut, Edwige Otero, Philippe Ohresser, Fabrice Wilhelm, Andrei Rogalev, Matthieu Bugnet, Damien Le Roy, Véronique Dupuis
Institutions: Lyon 1 Université, Centre National de la Recherche Scientifique, Université de Lyon, Institut Lumière Matière, Institut des Nanotechnologies de Lyon, Institut National des Sciences Appliquées de Lyon, Synchrotron SOLEIL, European Synchrotron Radiation Facility, Matériaux Ingénierie et Science
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4398758127