Editing Iron(III) oxide (section)

===Magnetic recording===
Iron(III) oxide was the most common [[magnet]]ic particle used in all types of [[magnetic storage|magnetic storage and recording]] media, including magnetic disks (for data storage) and [[magnetic tape]] (used in audio and video recording as well as data storage). Its use in computer disks was superseded by cobalt alloy, enabling thinner magnetic films with higher storage density.<ref>{{cite journal|doi=10.1063/1.2750414|title=Perpendicular recording media for hard disk drives|journal=Journal of Applied Physics|volume=102|issue=1|pages=011301–011301–22|year=2007|last1=Piramanayagam|first1=S. N.|bibcode=2007JAP...102a1301P}}</ref>