Improvement of some physical and magnetic properties of nanocrystalline Fe15-Ni85/ITO thin films by galvanostatic pretreatment process

Saraç U., Baykul M. C., Dındış G., Trong D. N., Kaya B. M., Lan D. P., ...More

MATERIALS TODAY COMMUNICATIONS, vol.35, 2023 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 35
  • Publication Date: 2023
  • Doi Number: 10.1016/j.mtcomm.2023.106067
  • Journal Name: MATERIALS TODAY COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Keywords: Electrodeposition, Fe15–Ni85 thin films, Indium tin oxide, Magnetic features, Pretreatment process, Structure, Surface morphology
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

In this research, a comparative study on some physical and magnetic properties of nanocrystalline Fe15-Ni85 thin films with and without galvanostatic pretreatment (GPT) process deposited on conductive and transparent in-dium tin oxide substrates using the electrodeposition method is carried out. The films exhibit the non-preferential deposition of more noble Ni. The films, irrespective of the GPT process, show a single face-centered cubic structure with the preferential orientation of crystallites along the (111) plane. The Ni-Fe thin film with the GPT exhibits a smaller crystallite size and a stronger [111] texture than the Ni-Fe thin film without the GPT. The films exhibit in-plane magnetic hysteresis loops with a magnetic squareness ratio of about 0.10 +/- 0.01 independent of the GPT. The main advantages of the Ni-Fe thin film with the GPT are the smooth surface with smaller particles and the in-plane magnetization, which shows a significant reduction of the coercive field. The results obtained in this study are expected to be useful for future experimental studies of Ni-Fe thin film materials.