Anisotropy Constant Ratio Required for Heat-Assisted Magnetic Recording

Patterned medium for heat assisted magnetic recording

Heat assisted magnetic recording HAMR is a potential solution to extend the limits of conventional magnetic recording. In HAMR, the heating of the recording medium is achieved with a near-field optical transducer. Although the literature suggests novel transducers, there is little consideration of the optical and thermal aspects of the magnetic medium. In this letter we suggest a recording medi...

Characterization of Heat-Assisted Magnetic Recording Channels

The storage capacity of hard disk drives has increased tremendously over the last decade. However, the rate of increase has reached a bottle-neck as the technology approaches a theoretical limit known as the super-paramagnetic limit. Heat-Assisted Magnetic Recording (HAMR) has emerged as one of the important technologies to overcome this limit. The process of heating while writing brings about ...

A two-stage heating scheme for heat assisted magnetic recording

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Plasmonic near-field transducer for heat-assisted magnetic recording

Plasmonic devices, made of apertures or antennas, have played significant roles in advancing the fields of optics and opto-electronics by offering subwavelength manipulation of light in the visible and near infrared frequencies. The development of heat-assisted magnetic recording (HAMR) opens up a new application of plasmonic nanostructures, where they act as near field transducers (NFTs) to lo...

Storage Physics and Noise Mechanism in Heat-Assisted Magnetic Recording