Sources and Impact of Media Thermal Fluctuations in Heat-Assisted Magnetic Recording
作者： Pierre-Olivier Jubert , Cristian Papusoi
DOI: 10.1109/TMAG.2018.2827040
关键词:
摘要: Optical and thermal modeling is used to understand quantify the contribution of different sources temperature fluctuations in heat-assisted magnetic recording. The dominant are spatial variations absorption recording layer underlayer effective boundary resistance. They result an increased transition jitter that proportional amplitude source variations. Besides, strongly depends on length scale fluctuations: with smaller periods lead reduced as a in-plane heat spreading within medium layers. Temperature also input laser power or average gradient. Consequently, arising from does not change improved gradients, contrast resulting Curie distributions. Interface roughness investigated it practical both optical property fluctuations. It found sizeable jitter, whose reduces at small wavelengths.
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