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Thermally assisted magnetic recording on a bit-patterned medium by using a near-field optical head with a beaked metallic plate
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10.1063/1.2960344
/content/aip/journal/apl/93/3/10.1063/1.2960344
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/3/10.1063/1.2960344
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of nanobeak and (b) calculated intensity distribution of optical near field generated by the nanobeak placed near a film. The intensity represents the ratio between power density of the optical near-field and that of the incident light.

Image of FIG. 2.
FIG. 2.

BPM used for the experiment: (a) medium structure and (b) atomic-force-microscope image of the medium before depositing carbon between dots.

Image of FIG. 3.
FIG. 3.

(a) MFM images of medium after writing marks and (b) magnified view of the region surrounded by a dotted line in (a).

Image of FIG. 4.
FIG. 4.

Characteristic of patterned medium: (a) Temperature dependence of saturation magnetization and anisotropic energy ; (b) dependence of coercivity on temperature and switching time. In (a), circular dots represent measured , the solid line represents a Brillouin function fitted to the measured values, and the dashed line represents calculated from . In (b), circular dots represent measured coercivity and solid lines represent coercivity calculated from Sharlock’s formula. The square dot represents the writing condition used in the experiment.

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/content/aip/journal/apl/93/3/10.1063/1.2960344
2008-07-23
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Thermally assisted magnetic recording on a bit-patterned medium by using a near-field optical head with a beaked metallic plate
http://aip.metastore.ingenta.com/content/aip/journal/apl/93/3/10.1063/1.2960344
10.1063/1.2960344
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