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Research PapersNo Access

CHARACTERIZATION OF THERMALLY ASSISTED MAGNETIC PROBE RECORDING ON A CoNi/Pt MULTILAYERED FILM

LI ZHANG

Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu 610054, China

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https://doi.org/10.1142/S0217979208038995Cited by:0 (Source: Crossref)

Abstract

A method of thermally assisted magnetic probe recording on a perpendicular medium was characterized. Field emission current from a scanning tunneling microscope (STM) tip was used as a heating source. A strongly-coupled CoNi/Pt multilayered film was used as a recording medium. Pulses with amplitude of 3–7 V were applied between the STM tip and the recording medium. Experiments show that magnetic marks were formed for voltages of 5–7 V, with an average size of 170 nm. No marks were observed for lower voltages. The model is built to simulate the dynamic process of domain formation in probe-based magnetic recording system. Simulation results agree with experiments.

Keywords:

PACS: 75.50.Ss, 85.70.-w, 07.79.-v

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Vol. 22, No. 07

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Received 22 November 2006

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