Suppression of magnetostructural transition on GdSiGe thin film after thermal cyclings

• Tipo: Artigo em Revista Científica Internacional
• Data: 2017

Autores

Pires, AL (Autor) Outra; Belo, JH (Autor) Outra; Gomes, IT (Autor) Outra; Hadimani, RL (Autor) Outra; Schlagel, DL (Autor) Outra; Lograsso, TA (Autor) Outra; Jiles, DC (Autor) Outra; Lopes, AML (Autor) Outra; araujo, j. p. (Autor) FCUP; pereira, a. m. (Autor) FCUP

Revista

Título: Thin Solid Films

Vol. 621

Páginas: 247-252

ISSN: 0040-6090

Editora: Elsevier

Indexação

ISI Web of Knowledge - 9 Citações

Scopus - 9 Citações

Outras Informações

ID Authenticus: P-00M-F1M

DOI: 10.1016/j.tsf.2016.09.013

Abstract (EN): The influence of thermal cycling on the microstructure, magnetic phase transition and magnetic entropy change of a Gd5Si1.3Ge2.7 thin film up to 1000 cycles is investigated. The authors found that after 1000 cycles a strong reduction of the crystallographic phase responsible for the magnetostructural transition (Orthorhombic II phase) occurs. This is attributed to chemical disorder, caused by the large number of expansion/compression cycles that the Orthorhombic II phase undergoes across the magnetostructural transition. The suppression of the magnetostructural transition corresponds to a drastic decrease of the thin film magnetic entropy change. These results reveal the importance of studying the thermal/magnetic cycles influence on magnetostructural transitions as they can damage a real-life device.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6