Full text loading...
Schematic spin-split band structure of Fe along the , direction adapted according to Refs. 18 and 19; spin-up (-down) states: solid (dashed) lines. The free electron final band is shifted by with its energy displayed along the top scale.
(a) STM image of a 25 nm thick Fe(110) film on (1.0 V; 0.12 nA). The inset shows the corresponding LEED image . (b) STM image of a 1 nm thick MgO layer deposited on Fe(110) (3.6 V; 0.35 nA). The inset shows the LEED image of a 3 nm thick MgO layer .
(a) TEM micrograph of a cross section of the epitaxial Fe(110)/MgO(111)/Fe(110) MTJ. (b) Magnetic hysteresis loop at 4.2 K and (c) a typical curve of the MTJ. (d) characteristics of the Fe/MgO/Fe MTJ measured at 4.2 K (open squares) together with the corresponding Simmons fit21 of the experimental data (full circles).
TMR measurements as a function of external magnetic field at 1.5 K (open circles) and at RT (full squares).
Article metrics loading...