Information recording and reproducing device.

摘要

The device provides super high recording density over 1 Tbit/in<2> level without the problem of a probe breaking. The device has a long-life and stable operation. The information recording and reproducing device records information by contacting a conductive probe (4) located on the tip of a cantilever (6) to a recording medium (3) which includes a conductive substrate (1) with a phase change material (2) formed thereon, and applying voltage between the conductive probe (4) and the recording medium (3) to change the phase of the recording medium (3) by the resistance heat of the flowing current.