prov:value
| - (1) A multilayered film having magnetic layers and an intermediate layer of an insulating material such as Al2 O3, SiO2, NiO or BN, a semiconductor such as Si, Ge or GaAs, or other materials, inserted between the magnetic layers; for example, a ferromagnetic thin film, using a ferromagnetic spin-dependent tunneling effect, such as Ni/NiO/Co, Fe/Ge/Co, Al/Al2 O3 /Ni, Co-Al/Al2 O3 /Ni, Fe-C/SiO2 /Fe
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