Anti-ferromagnetic coupling effects on energy barrier and reversal properties of recording media
Analytical solutions for coercivity H/sub CM1/, H/sub CM2/, effective (Mrt)/sub eff/, energy-barrier and effective thermal stability factor as a function of coupling constant J and other film parameters have been derived for two coupled ferromagnetic layers (FM-FM layer) with different magnetic prop...
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| Veröffentlicht in: | IEEE transactions on magnetics 2001-07, Vol.37 (4), p.1445-1448 |
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| container_end_page | 1448 |
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| container_issue | 4 |
| container_start_page | 1445 |
| container_title | IEEE transactions on magnetics |
| container_volume | 37 |
| creator | Wang, J.P. Shan, Z.S. Piramanayagam, S.N. Chong, T.C. |
| description | Analytical solutions for coercivity H/sub CM1/, H/sub CM2/, effective (Mrt)/sub eff/, energy-barrier and effective thermal stability factor as a function of coupling constant J and other film parameters have been derived for two coupled ferromagnetic layers (FM-FM layer) with different magnetic properties for the first time. The condition for reduced effective (Mrt)/sub eff/ is analyzed. These results are valuable for laminated antiferromagnetically coupled media design. This may open up a channel to raise thermal stability significantly while maintaining lower noise for longitudinal recording media. |
| doi_str_mv | 10.1109/20.950866 |
| format | Article |
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The condition for reduced effective (Mrt)/sub eff/ is analyzed. These results are valuable for laminated antiferromagnetically coupled media design. 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The condition for reduced effective (Mrt)/sub eff/ is analyzed. These results are valuable for laminated antiferromagnetically coupled media design. This may open up a channel to raise thermal stability significantly while maintaining lower noise for longitudinal recording media.</description><subject>Antiferromagnetic materials</subject><subject>Channels</subject><subject>Coercive force</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Couplings</subject><subject>Energy barrier</subject><subject>Exact sciences and technology</subject><subject>Ferromagnetic materials</subject><subject>Joining</subject><subject>Laminates</subject><subject>Magnetic analysis</subject><subject>Magnetic films</subject><subject>Magnetic properties</subject><subject>Magnetic properties and materials</subject><subject>Magnetic recording materials</subject><subject>Magnetic storage</subject><subject>Magnetism</subject><subject>Mathematical analysis</subject><subject>Physics</subject><subject>Recording instruments</subject><subject>Stability analysis</subject><subject>Studies of specific magnetic materials</subject><subject>Thermal factors</subject><subject>Thermal stability</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2001</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNqF0UFrFDEUB_BQFLpWD157GgQtPUx9yWQyybEU2woFL3oe32RelpTZzPZlVui3N8suFTzoKST5vf9LeEK8l3AlJbjPCq5cC9aYE7GSTssawLhXYgUgbe200afiTc6PZatbCSvx8zotsQ7EPG9wnWiJvvLzbjvFtK4oBPJLruZUUSJeP1cDMkfiCtNYMf0izjhVW563xEukIkM59jOP-_INjRHfitcBp0zvjuuZ-HH75fvNff3w7e7rzfVD7RvXLbVugzUIynpE52w34KA8DV2D2pqh88qB0Y1uBhgRARBHIOcGoxFsALLNmbg45JbXPO0oL_0mZk_ThInmXe6d1KaVWqkiP_1TKlvkvtd_obGNbZquwA9_wcd5x6l8t7dWW9mBgoIuD8jznDNT6LccN8jPvYR-P7teQX-YXbEfj4GYPU6BMfmY_xRocNbJtrjzg4tE9HJ9DPkNiByg0g</recordid><startdate>20010701</startdate><enddate>20010701</enddate><creator>Wang, J.P.</creator><creator>Shan, Z.S.</creator><creator>Piramanayagam, S.N.</creator><creator>Chong, T.C.</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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The condition for reduced effective (Mrt)/sub eff/ is analyzed. These results are valuable for laminated antiferromagnetically coupled media design. This may open up a channel to raise thermal stability significantly while maintaining lower noise for longitudinal recording media.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/20.950866</doi><tpages>4</tpages></addata></record> |
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| issn | 0018-9464 1941-0069 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Antiferromagnetic materials Channels Coercive force Condensed matter: electronic structure, electrical, magnetic, and optical properties Couplings Energy barrier Exact sciences and technology Ferromagnetic materials Joining Laminates Magnetic analysis Magnetic films Magnetic properties Magnetic properties and materials Magnetic recording materials Magnetic storage Magnetism Mathematical analysis Physics Recording instruments Stability analysis Studies of specific magnetic materials Thermal factors Thermal stability |
| title | Anti-ferromagnetic coupling effects on energy barrier and reversal properties of recording media |
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