Surface effects on electrical and magnetic properties of Ni75.2Mn23.6Pt1.2 alloy films

Oner Y.

THIN SOLID FILMS, cilt.616, ss.680-689, 2016 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 616
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1016/j.tsf.2016.09.051
  • Dergi Adı: THIN SOLID FILMS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.680-689
  • İstanbul Teknik Üniversitesi Adresli: Hayır

Özet

We report on the magnetic, electrical resistivity and ferromagnetic resonance (FMR) properties of polycrystalline thin films of Ni75.2Mn23.6Pt1.2 prepared by electron beam evaporation with thicknesses from 10 to 800 nm. We measured field cooled magnetization as a function of temperature as well as hysteresis loops in parallel and perpendicular geometries (field parallel/perpendicular to film surface) at selected temperatures. We observe asymmetric double-shifted hysteresis loops below the freezing temperature, T-f, which can be attributed to the competition of unidirectional and uni-axial anisotropy fields.