Micromagnetic study of the correlation between head field gradient and jitter in perpendicular recording
Various write head field gradients are achieved by adjusting the design of a magnetic recording system consisting of a single pole head with a trailing shield flying over a hard magnetic layer with a soft underlayer. Micromagnetic simulations show that the transition jitter is not exactly inversely...
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| Veröffentlicht in: | IEEE transactions on magnetics 2005-10, Vol.41 (10), p.3091-3093 |
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| container_end_page | 3093 |
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| container_issue | 10 |
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| container_title | IEEE transactions on magnetics |
| container_volume | 41 |
| creator | Goldberg, J.S. Asselin, P. Batra, S. Hong Zhou |
| description | Various write head field gradients are achieved by adjusting the design of a magnetic recording system consisting of a single pole head with a trailing shield flying over a hard magnetic layer with a soft underlayer. Micromagnetic simulations show that the transition jitter is not exactly inversely proportional to the head field gradient, and that this relationship is independent of system design. The effective field based on the Stoner-Wohlfarth coherent switching, instead of the perpendicular field, must be applied to calculate the head field gradient. |
| doi_str_mv | 10.1109/TMAG.2005.855318 |
| format | Article |
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Micromagnetic simulations show that the transition jitter is not exactly inversely proportional to the head field gradient, and that this relationship is independent of system design. 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Micromagnetic simulations show that the transition jitter is not exactly inversely proportional to the head field gradient, and that this relationship is independent of system design. The effective field based on the Stoner-Wohlfarth coherent switching, instead of the perpendicular field, must be applied to calculate the head field gradient.</description><subject>Cross-disciplinary physics: materials science; rheology</subject><subject>Exact sciences and technology</subject><subject>Jitter</subject><subject>Magnetic heads</subject><subject>Magnetic noise</subject><subject>Magnetic recording</subject><subject>Magnetic separation</subject><subject>Magnetic shielding</subject><subject>Magnetism</subject><subject>Materials science</subject><subject>micromagnetic model</subject><subject>Micromagnetics</subject><subject>Other topics in materials science</subject><subject>Permeability</subject><subject>Perpendicular magnetic recording</subject><subject>Physics</subject><subject>Soft magnetic materials</subject><subject>write head field gradient</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkE2LFDEQhoMoOK7eBS9B0FuPlc9OH5dlXYVdvKznkE6qZzL0pMckjey_N8MsLHgqQj31VuUh5CODLWMwfHt8uL7bcgC1NUoJZl6RDRsk6wD08JpsAJjpBqnlW_KulEN7SsVgQ_YP0efl6HYJa_S01DU80WWidY_ULznj7GpcEh2x_kVMdI8u0CniHOguuxAxVepSoIdYK2YaEz1hPmEK0a-zyzRjSwkx7d6TN5ObC354rlfk9_fbx5sf3f2vu5831_edl6yvndaTH80g1aRHGIQIPUh0CK2MbtRScQyAvA9OGcP9CD22r2jhYNTCgBBX5Osl95SXPyuWao-xeJxnl3BZi-UGJHDFG_j5P_CwrDm126zRvdRMStkguEBNUikZJ3vK8ejyk2Vgz97t2bs9e7cX723ky3OuK97NU3bJx_Iy13MBgznv_3ThIiK-tBUbOOvFP3PPi-Y</recordid><startdate>20051001</startdate><enddate>20051001</enddate><creator>Goldberg, J.S.</creator><creator>Asselin, P.</creator><creator>Batra, S.</creator><creator>Hong Zhou</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Micromagnetic simulations show that the transition jitter is not exactly inversely proportional to the head field gradient, and that this relationship is independent of system design. The effective field based on the Stoner-Wohlfarth coherent switching, instead of the perpendicular field, must be applied to calculate the head field gradient.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TMAG.2005.855318</doi><tpages>3</tpages></addata></record> |
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| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Cross-disciplinary physics: materials science rheology Exact sciences and technology Jitter Magnetic heads Magnetic noise Magnetic recording Magnetic separation Magnetic shielding Magnetism Materials science micromagnetic model Micromagnetics Other topics in materials science Permeability Perpendicular magnetic recording Physics Soft magnetic materials write head field gradient |
| title | Micromagnetic study of the correlation between head field gradient and jitter in perpendicular recording |
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