Abstract
We demonstrate a convenient method for the determination of recording bits in phase-change media based on scanning surface potential microscopy using a conductive tip. Commercially available digital versatile disks (DVD) ±rewritable (RW) with initialization process are measured in experiments. The minimum size of the recording bits of DVD+RW, written by a commercial recorder, is around 425.22 nm. The mean work function (WF) value of the recording layer is found to be 4.27 eV from the contact potential difference images. After writing by a readwrite disk tester, the mean WF value of the amorphous bits has a drop of 15.46 meV. The results indicate that surface electronic energy of recorded regions is raised due to the writing process. © 2005 American Vacuum Society.
| Original language | English |
|---|---|
| Pages (from-to) | 663-665 |
| Journal | Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films |
| Volume | 23 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Jul 2005 |
| Externally published | Yes |
Bibliographical note
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