| http://www.w3.org/ns/prov#value | - As a material of the magnetically fixed layers C1 and C2 and the magnetic recording layer A, iron (Fe), cobalt (Co), nickel (Ni), the alloy including at least one element selected from the group consisting of iron (Fe), cobalt (Co), nickel (Ni), manganese (Mn), and chromium (Cr) or the group consisting of iron (Fe), cobalt (Co), nickel (Ni), manganese (Mn), and chromium (Cr), a NiFe system alloy c
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