Nanoscale Thermal Mapping of HAMR Heads Using Polymer Imprint Thermal Mapping
| Autor: | Matteo Staffaroni, Anika Kinkhabwala, Barry C. Stipe, Ozgun Suzer, Stanley Burgos |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
business.industry Magnetic storage 02 engineering and technology Scanning thermal microscopy 021001 nanoscience & nanotechnology 01 natural sciences Temperature measurement Electronic Optical and Magnetic Materials law.invention Nuclear magnetic resonance Heat-assisted magnetic recording law 0103 physical sciences Thermal Optoelectronics Area density Electrical and Electronic Engineering 010306 general physics 0210 nano-technology business Nanoscopic scale Plasmon |
| Zdroj: | IEEE Transactions on Magnetics. 52:1-4 |
| ISSN: | 1941-0069 0018-9464 |
| DOI: | 10.1109/tmag.2015.2474299 |
| Popis: | A number of systems require high-resolution, non-perturbative thermal mapping. This need is especially apparent for heat-assisted magnetic recording (HAMR), a technology developed to increase the areal density of magnetic storage. In HAMR, plasmonic antennas are used to heat magnetic media by hundreds of degrees in a nanoscale region. Understanding the antenna’s temperature is critical, but the available methods for high-resolution thermal mapping are dominated by experimental artifacts. In order to measure the temperature distributions of a plasmonic antenna without a major perturbation, a new technique, polymer imprint thermal mapping (PITM), was developed, which relies on the thermal response of a thin polymer film to report temperature. The polymer permanently cross-links upon heating, so the thermally induced height change of the polymer film is directly correlated with the sample temperature. It is experimentally shown that PITM creates thermal maps that are far superior to conventional scanning thermal microscopy. In addition, the modeled thermal distributions show remarkable agreement with the measured PITM thermal maps. |
| Databáze: | OpenAIRE |
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