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May 24 – 25, 2021
Faculty of Science, Prince of Songkla University
Asia/Bangkok timezone

Magnetocaloric effect of evaporated Fe on Gd foils

Not scheduled
15m
Faculty of Science, Prince of Songkla University

Faculty of Science, Prince of Songkla University

Oral Material Physics

Speaker

Ms Apinya Paowarat (1Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand, 2Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok 10400, Thailand)

Description

Abstract:
The main objective of the present study was to investigate the effect of Fe-coated on magnetocaloric effect (MCE) of Gd foil. The Fe film with thickness 142 nm and 193 nm was grown on both side of 500 m Gd foil using evaporation. Magnetic properties of the samples were investigated using vibrating sample magnetometer. The magnetic entropy change was calculated from the isothermal magnetization measurements under in-plane and out-of-plane applied magnetic field of 10 kOe. The maximum entropy changes obtained from in-plane isothermal magnetization measurement for 142 and 193 nm Fe-coated samples were comparable to that of the Gd foil (3.1 J/kgK). The entropy change calculated from out-of-plane isothermal magnetization measurement for Fe-coated Gd sample higher than that of the pure Gd sample. The enhancement of MCE behaviors was explained by magnetic field amplification due to the coating layers.

Primary author

Ms Apinya Paowarat (1Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand, 2Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok 10400, Thailand)

Co-authors

Mr Peerapat Lekka (1Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand 2Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok 10400, Thailand) Dr Pongsakorn Jantaratana (1Department of Physics, Faculty of Science, Kasetsart University, Bangkok, 10900, Thailand 2Thailand Center of Excellence in Physics, Commission on Higher Education, 328 Si Ayutthaya Road, Bangkok 10400, Thailand)

Presentation materials