عـرض براءة الإختـراع

Ultra-density nanostructure GdFe thin film with large perpendicular magnetic anisotropy for a new generation of spintronic device

• رقــم البراءة

  US 11,804,322 B1

• المجـال العلمى

  الصحة - Health

• سنة الإصدار

  2023

• مكتـب التسجيـل

  مكتب البراءات الأمريكي - US Patent Office

• أسماء المخترعين

  Ali; Mai Mostafa Khalaf (Al-Ahsa, SA), Ahmed; Hany Mohamed Ab El-Lateef (Al-Ahsa, SA), Salaheldeen; Mohamed (Al-Ahsa, SA), Abu-Dief; Ahmed M. (Al-Ahsa, SA)

• نبذة عن البـراءة

  A method of fabrication of nanostructured thin film includes depositing a Gd.sub.20Fe.sub.80 alloy by using the thermal evaporating technique on the top of a high-density nanoporous alumina template. In a particular embodiment, the high-density nanoporous alumina template has a pore diameter of 92 nm and interpore distance of 103 nm and the Gd.sub.20Fe.sub.80 nanostructured thin film has a layer thickness of 48 nm. The present method results in nanostructured GdFe thin films with large perpendicular magnetic energy density of 4.8 erg/cm.sup.2, which is 15 times higher than obtained in the conventional ferromagnetic alloy thin films with PMA.