Abstract
Simulations of shingled thermally assisted magnetic recording were carried out. The head field distribution and head field gradient had little effect on the signal-to-noise ratio of shingled tracks, whereas the heat spot radius and medium parameters had a much more significant influence. An areal density of 8 Tbit/in <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> could be achieved with a shingled track width of 9 nm if very demanding conditions on the heat spot and recording medium parameters were met. Under more relaxed conditions areal densities in excess of 4 Tbit/in <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> could be expected for shingled track widths of 15 nm.
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