Suppression of magnetostructural transition on GdSiGe thin film after thermal cyclings

• Type: Article in International Scientific Journal
• Date: 2017

Authors

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

Journal

Title: Thin Solid Films

Vol. 621

Pages: 247-252

ISSN: 0040-6090

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 7 Citations

Scopus - 7 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6