V.G. Shadrov – Ph.D. (Phys.-Math.), Leading Research Scientist, 

Scientific-Practical Materials Research Centre

A.E. Dmitrieva – Junior Research Scientist, 

Scientific-Practical Materials Research Centre

A.V. Boltushkin – Ph.D. (Phys.-Math.), Leading Research Scientist, 

Scientific-Practical Materials Research Centre

E-mail: nemtsevich@ifttp.bas-net.by

The technology of energy-assisted magnetic recording, which is based on a short-term decrease in the coercive force of the recording medium below the recording field due to local heating (thermally assisted magnetic recording) or precession of the magnetization vector under the influence of microwave radiation (microwave assisted recording), suggests the possibility of a significant reduction in the average thermostable size grain and increase in surface density of magnetic recording is significantly higher than 1 Tb/inch2. To analyze the main parameters of magnetic media and magnetic read-write heads for energy-driven magnetic recording, the materials used, as well as alternative magnetic materials and concepts of recording media.

The basic parameters of magnetic media and magnetic heads of thermally assisted and micro-wave assisted recordings, used magnetic materials, as well as alternative materials and concepts of energy-assisted magnetic recording media are analyzed.

The technologies considered allow increasing the surface recording density up to 5 Tb/inch2 on the basis of energy-sensitive  recording, and when using a combination of HAMR or MAMR and (bit)structured technologies, up to 10 Tb/inch2 and higher.

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