Hard coating extends the life of new ultrahigh-density storage device

Probe storage devices read and write data by making nanoscale marks on a surface through physical contact. The technology may one day extend the data density limits of conventional magnetic and optical storage, but current probes have limited lifespans due to mechanical wear. A research team has now developed a long-lasting ultrahigh-density probe storage device by coating the tips of the probes with a thin metal film.

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