High density HDD

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MFM image of high density (40 Gb) hard disk drive. Distance between magnetic bits is about 200 nm. MFM measurements were performed with special magnetically soft cantilever with permalloy coating.

High density HDD

MFM image of high density (40 Gb) hard disk drive. Distance between magnetic bits is about 200 nm. MFM measurements were performed with special magnetically soft cantilever with permalloy coating.
size: 2.5x2.5 um
SPM principle: DC MFM

Quantum dots

DVD stamper

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