PMC

In-plane hysteresis loops measured on sample Au₂Co₁ along the easy and hard orthogonal axes at T = 6 K (a) and T = 100 K (b) (normalized to the saturation magnetization M_s). Inset of frame (b): enlarged view of the hard axis loop. Coercivity H_c (c) and squareness ratio M_r/M_S (d) vs. T along the easy and hard axes.

(a) In-plane hysteresis loops measured on sample Au₁Co₁ along the easy and hard orthogonal axes at T = 100 K (normalized to the saturation magnetization M_s), Coercivity H_c; and (b) squareness ratio M_r/M_S; (c) vs. T, along the easy and hard axes.

Mechanical behavior at room temperature of dispersion-containing alloy tensile samples. (A) Stress-strain curves for SnAg alloy with increasing amounts of iron dispersions. (B) The role of aligned particles was also tested. Stress-strain curves for a SnAg + 5 wt.%Fe sample cast within a magnetic field (Aligned Orientation) and without a magnetic field (Random Orientation). A sample without dispersions is included for comparison. A schematic of a composite sample with (a) hard layers (Particle-Rich Regions) and (b) a soft layer (Particle-Depleted Regions) is in the inset.

Relationship between magnetoresistance (MR) and resistance-area product (RA) of magnetic tunnel junctions (MTJs) with CoFeB/MgO/CoFeB (blue triangles), nano-oxide layers (NOL, green squares) and Heusler alloys (red circles) with in-plane (open symbols) and perpendicular magnetic anisotropy (closed symbols) together with that of giant magnetoresistive (GMR) junctions with Heusler alloys (orange rhombus). The target requirements for 2 Tbit/in² hard disk drive (HDD) read heads as well as 1 and 10 Gbit magnetic random access memory (MRAM) applications are shown as purple and yellow shaded regions, respectively.