Improvement in the magnetic properties of Tb/FeCo films for perpendicular magnetic recording media

Mossbauer study of Thin Films based on FeM (M=Pt or Co)

“…Further increase of recording density, i.e., transition to ultrahigh density perpendicular magnetic recording (PMR), requires, however, development of new materials (see [2,3] and references therein). Multilayer systems and Tb/Fe, Co/Pd, or Co/Fe based crystalline films are attracting broad interest [4][5][6][7][8] Figure 1 and looks as typical spectra of amorphous alloys and consist of a set of absorption lines, which result from differences associated with a transition of the Mössbauer isotope…”

The effect of annealing on magnetic properties of Co/Gd multilayers

“…The effect of annealing on magnetic properties of Co/Gd multilayers [4][5] and frozen frustrated magnetic state [6]. The variation of RE/TM concentration allows controlling the magnetic and magnetotransport properties of the system, as well as alignment of its magnetic moment with the external magnetic field [1][2][3] or inverse GMR [7].…”

“…Indeed, the properties of RE/TM multilayers have been widely studied in the past [4][5][9][10][11] but the influence of heat treatment on the magnetic behavior of multilayers has not been enough researched. It has also been shown that interfacial magnetic disorder [12] impacts the magnetism and affects to the magnetization reversal processes [13].…”