Magnetization Reversal of Highly Coercive FePt Examined With Pulsed Microcoils
The switching of ultra-high coercivity FePt thin films has been studied by pulsed magnetic fields of up to 25 T, generated with microcoils of 50 mum diameter and using a fast magneto-optical polar Kerr effect setup. Whereas under static measurements, the coercive field reaches 5.5 T, under pulsed ma...
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| Veröffentlicht in: | IEEE transactions on magnetics 2006-10, Vol.42 (10), p.3072-3074 |
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| container_title | IEEE transactions on magnetics |
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| creator | Weisheit, M. Bonfim, M. Grechishkin, R. Barthem, V. Fahler, S. Givord, D. |
| description | The switching of ultra-high coercivity FePt thin films has been studied by pulsed magnetic fields of up to 25 T, generated with microcoils of 50 mum diameter and using a fast magneto-optical polar Kerr effect setup. Whereas under static measurements, the coercive field reaches 5.5 T, under pulsed magnetic field it approaches 8 T. An approximation of the Landau-Lifshitz-Gilbert (LLG) equation was used to calculate the magnetization response to the field pulse. Good agreement between experiment and simulation is observed if a value of 0.1 is assumed for the damping constant |
| doi_str_mv | 10.1109/TMAG.2006.880146 |
| format | Article |
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Whereas under static measurements, the coercive field reaches 5.5 T, under pulsed magnetic field it approaches 8 T. An approximation of the Landau-Lifshitz-Gilbert (LLG) equation was used to calculate the magnetization response to the field pulse. Good agreement between experiment and simulation is observed if a value of 0.1 is assumed for the damping constant</description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/TMAG.2006.880146</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Coercive force ; Condensed Matter ; Damping ; Equations ; FePt ; Ferrous alloys ; hard magnetic thin films ; Intermetallics ; Iron compounds ; Kerr effect ; L10 ; Magnetic field measurement ; Magnetic fields ; Magnetic films ; Magnetic switching ; Magnetism ; Magnetization reversal ; magneto-optic Kerr effect ; Magnetooptic effects ; Materials Science ; Mathematical analysis ; perpendicular magnetic anisotropy ; Physics ; Platinum compounds ; Pulse generation ; Pulse measurements ; pulsed magnetic fields</subject><ispartof>IEEE transactions on magnetics, 2006-10, Vol.42 (10), p.3072-3074</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2006</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c356t-e117fc3c12321e98bb4755357971bfbcc95bcb6a21cc1f7097fd14d6a92245293</citedby><cites>FETCH-LOGICAL-c356t-e117fc3c12321e98bb4755357971bfbcc95bcb6a21cc1f7097fd14d6a92245293</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/1704530$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>230,314,780,784,796,885,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/1704530$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttps://hal.science/hal-00312676$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Weisheit, M.</creatorcontrib><creatorcontrib>Bonfim, M.</creatorcontrib><creatorcontrib>Grechishkin, R.</creatorcontrib><creatorcontrib>Barthem, V.</creatorcontrib><creatorcontrib>Fahler, S.</creatorcontrib><creatorcontrib>Givord, D.</creatorcontrib><title>Magnetization Reversal of Highly Coercive FePt Examined With Pulsed Microcoils</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>The switching of ultra-high coercivity FePt thin films has been studied by pulsed magnetic fields of up to 25 T, generated with microcoils of 50 mum diameter and using a fast magneto-optical polar Kerr effect setup. Whereas under static measurements, the coercive field reaches 5.5 T, under pulsed magnetic field it approaches 8 T. An approximation of the Landau-Lifshitz-Gilbert (LLG) equation was used to calculate the magnetization response to the field pulse. Good agreement between experiment and simulation is observed if a value of 0.1 is assumed for the damping constant</description><subject>Coercive force</subject><subject>Condensed Matter</subject><subject>Damping</subject><subject>Equations</subject><subject>FePt</subject><subject>Ferrous alloys</subject><subject>hard magnetic thin films</subject><subject>Intermetallics</subject><subject>Iron compounds</subject><subject>Kerr effect</subject><subject>L10</subject><subject>Magnetic field measurement</subject><subject>Magnetic fields</subject><subject>Magnetic films</subject><subject>Magnetic switching</subject><subject>Magnetism</subject><subject>Magnetization reversal</subject><subject>magneto-optic Kerr effect</subject><subject>Magnetooptic effects</subject><subject>Materials Science</subject><subject>Mathematical analysis</subject><subject>perpendicular magnetic anisotropy</subject><subject>Physics</subject><subject>Platinum compounds</subject><subject>Pulse generation</subject><subject>Pulse measurements</subject><subject>pulsed magnetic fields</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkctLAzEQxoMoWB93wcviRTxszeS1m2MpfQitiigeQzbNtinbjW62Rf3rTVlR8DQzH7-ZYeZD6AJwHwDL2-f5YNInGIt-nmNg4gD1QDJIoyIPUQ9jyFPJBDtGJyGsY8k44B66n-tlbVv3pVvn6-TJ7mwTdJX4Mpm65ar6TIbeNsbtbDK2j20y-tAbV9tF8uraVfK4rULM58403nhXhTN0VOqonf_EU_QyHj0Pp-nsYXI3HMxSQ7loUwuQlYYaIJSAlXlRsIxzyjOZQVEWxkhemEJoAsZAmWGZlQtgC6ElIYwTSU_RTTd3pSv11riNbj6V105NBzO11zCmQEQmdhDZ6459a_z71oZWbVwwtqp0bf02KBm_xZnkJJJX_8i13zZ1PETlEclZLmiEcAfFm0NobPm7H7DaW6H2Vqi9FaqzIrZcdi3OWvuHZ5hxiuk3tI-Cqg</recordid><startdate>20061001</startdate><enddate>20061001</enddate><creator>Weisheit, M.</creator><creator>Bonfim, M.</creator><creator>Grechishkin, R.</creator><creator>Barthem, V.</creator><creator>Fahler, S.</creator><creator>Givord, D.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| subjects | Coercive force Condensed Matter Damping Equations FePt Ferrous alloys hard magnetic thin films Intermetallics Iron compounds Kerr effect L10 Magnetic field measurement Magnetic fields Magnetic films Magnetic switching Magnetism Magnetization reversal magneto-optic Kerr effect Magnetooptic effects Materials Science Mathematical analysis perpendicular magnetic anisotropy Physics Platinum compounds Pulse generation Pulse measurements pulsed magnetic fields |
| title | Magnetization Reversal of Highly Coercive FePt Examined With Pulsed Microcoils |
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