Structural and magnetic properties of perpendicular FePt thin films with inserted Ag layer

Abstract

Articles you may be interested inMagnetization reversal and microstructure of FePt-Ag (001) particulate thin films for perpendicular magnetic recording media Improved coercivity was achieved in perpendicular 10-nm-thick FePt film through an inserted Ag layer. The out-of-plane coercivity increased with increasing Ag thickness, from 2.0 kOe, for the sample without Ag, to 4.4 kOe, for the sample with 3 nm Ag. Silver insertion also reduced the magnetic grain size and affected the magnetic reversal mode in these films.

Comparative evaluation of performance of percolated perpendicular media using FePt–MgO/Pt/Cr trilayer and FePt–MgO/MgO bilayer

“…The FePt film exhibits strong domain wall motion. When MgO is incorporated into the FePt matrix, domain wall pinning dominates the initial magnetization state [23], suggesting that MgO strengthens the wall pinning effect. The pinning effect in the FePt film is weak.…”

Percolated perpendicular medium of FePt‐MgO/MgO bilayer films for ultra‐high magnetic recording

“…5. A slower increase of the magnetization when the MgO was introduced indicated that the pinning effect hindered the domain wall in the initial magnetization state [19,20].…”

Effect of Pt underlayer on the coercivity of FePt sputtered film

“…The selection of appropriate underlayer is very important for the development of excellent magnetic and recording properties [2][3][4][5][6][7][8][9][10][11]. Many papers have reported the development of c-axis preferred orientation and low ordering temperature process for the FePt magnetic films.…”