Study of perpendicular anisotropy L10-FePt pseudo spin valves using a micromagnetic trilayer model
A trilayer micromagnetic model based on the Landau-Lifshitz-Bloch equation of motion is utilized to study the properties of L10-FePt/TiN/L10-FePt pseudo spin valves (PSVs) in direct comparison with experiment. Theoretical studies give an insight on the crystallographic texture, magnetic properties,...
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| Veröffentlicht in: | Journal of applied physics 2015-06, Vol.117 (21) |
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| container_title | Journal of applied physics |
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| creator | Evans Richard F L Chantrell, Roy W Han Guchang Gan-Moog, Chow Chen, Jingsheng |
| description | A trilayer micromagnetic model based on the Landau-Lifshitz-Bloch equation of motion is utilized to study the properties of L10-FePt/TiN/L10-FePt pseudo spin valves (PSVs) in direct comparison with experiment. Theoretical studies give an insight on the crystallographic texture, magnetic properties, reversal behavior, interlayer coupling effects, and magneto-transport properties of the PSVs, in particular, with varying thickness of the top L10-FePt and TiN spacer. We show that morphological changes in the FePt layers, induced by varying the FePt layer thickness, lead to different hysteresis behaviors of the samples, caused by changes in the interlayer and intralayer exchange couplings. Such effects are important for the optimization of the PSVs due to the relationship between the magnetic properties, domain structures, and the magnetoresistance of the device. |
| doi_str_mv | 10.1063/1.4921828 |
| format | Article |
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Theoretical studies give an insight on the crystallographic texture, magnetic properties, reversal behavior, interlayer coupling effects, and magneto-transport properties of the PSVs, in particular, with varying thickness of the top L10-FePt and TiN spacer. We show that morphological changes in the FePt layers, induced by varying the FePt layer thickness, lead to different hysteresis behaviors of the samples, caused by changes in the interlayer and intralayer exchange couplings. Such effects are important for the optimization of the PSVs due to the relationship between the magnetic properties, domain structures, and the magnetoresistance of the device.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.4921828</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Anisotropy ; Applied physics ; Couplings ; Crystallography ; Equations of motion ; Interlayers ; Intermetallic compounds ; Iron compounds ; Magnetic properties ; Magnetism ; Magnetoresistance ; Magnetoresistivity ; Platinum compounds ; Spin valves ; Thickness</subject><ispartof>Journal of applied physics, 2015-06, Vol.117 (21)</ispartof><rights>2015 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Evans Richard F L</creatorcontrib><creatorcontrib>Chantrell, Roy W</creatorcontrib><creatorcontrib>Han Guchang</creatorcontrib><creatorcontrib>Gan-Moog, Chow</creatorcontrib><creatorcontrib>Chen, Jingsheng</creatorcontrib><title>Study of perpendicular anisotropy L10-FePt pseudo spin valves using a micromagnetic trilayer model</title><title>Journal of applied physics</title><description>A trilayer micromagnetic model based on the Landau-Lifshitz-Bloch equation of motion is utilized to study the properties of L10-FePt/TiN/L10-FePt pseudo spin valves (PSVs) in direct comparison with experiment. Theoretical studies give an insight on the crystallographic texture, magnetic properties, reversal behavior, interlayer coupling effects, and magneto-transport properties of the PSVs, in particular, with varying thickness of the top L10-FePt and TiN spacer. We show that morphological changes in the FePt layers, induced by varying the FePt layer thickness, lead to different hysteresis behaviors of the samples, caused by changes in the interlayer and intralayer exchange couplings. Such effects are important for the optimization of the PSVs due to the relationship between the magnetic properties, domain structures, and the magnetoresistance of the device.</description><subject>Anisotropy</subject><subject>Applied physics</subject><subject>Couplings</subject><subject>Crystallography</subject><subject>Equations of motion</subject><subject>Interlayers</subject><subject>Intermetallic compounds</subject><subject>Iron compounds</subject><subject>Magnetic properties</subject><subject>Magnetism</subject><subject>Magnetoresistance</subject><subject>Magnetoresistivity</subject><subject>Platinum compounds</subject><subject>Spin valves</subject><subject>Thickness</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNotT0tLxDAYDKJgXT34DwKeu-bRNslRFleFgoJ7X9Lk65KlbWKSLvTfW9DTzMA8GIQeKdlS0vBnuq0Uo5LJK1RQIlUp6ppco4IQRkuphLpFdymdCaFUclWg7jvPdsG-xwFigMk6Mw86Yj255HP0YcEtJeUevjIOCWbrcQpuwhc9XCDhObnphDUenYl-1KcJsjM4RzfoBSIevYXhHt30ekjw8I8bdNi_HnbvZfv59rF7acugZC6FlIrZqqMNazoOql-l0UyDIRR62XHJBTfCrpRZIrgCZvr162rSooOab9DTX22I_meGlI9nP8dpXTwyyirBhVpjv66iVsY</recordid><startdate>20150607</startdate><enddate>20150607</enddate><creator>Evans Richard F L</creator><creator>Chantrell, Roy W</creator><creator>Han Guchang</creator><creator>Gan-Moog, Chow</creator><creator>Chen, Jingsheng</creator><general>American Institute of Physics</general><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20150607</creationdate><title>Study of perpendicular anisotropy L10-FePt pseudo spin valves using a micromagnetic trilayer model</title><author>Evans Richard F L ; Chantrell, Roy W ; Han Guchang ; Gan-Moog, Chow ; Chen, Jingsheng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-p98t-78892d4b1626b3e9f892ca2aec01ef8b38373c7df8b2d0739e2cf4922caa7be53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Anisotropy</topic><topic>Applied physics</topic><topic>Couplings</topic><topic>Crystallography</topic><topic>Equations of motion</topic><topic>Interlayers</topic><topic>Intermetallic compounds</topic><topic>Iron compounds</topic><topic>Magnetic properties</topic><topic>Magnetism</topic><topic>Magnetoresistance</topic><topic>Magnetoresistivity</topic><topic>Platinum compounds</topic><topic>Spin valves</topic><topic>Thickness</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Evans Richard F L</creatorcontrib><creatorcontrib>Chantrell, Roy W</creatorcontrib><creatorcontrib>Han Guchang</creatorcontrib><creatorcontrib>Gan-Moog, Chow</creatorcontrib><creatorcontrib>Chen, Jingsheng</creatorcontrib><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Evans Richard F L</au><au>Chantrell, Roy W</au><au>Han Guchang</au><au>Gan-Moog, Chow</au><au>Chen, Jingsheng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study of perpendicular anisotropy L10-FePt pseudo spin valves using a micromagnetic trilayer model</atitle><jtitle>Journal of applied physics</jtitle><date>2015-06-07</date><risdate>2015</risdate><volume>117</volume><issue>21</issue><issn>0021-8979</issn><eissn>1089-7550</eissn><abstract>A trilayer micromagnetic model based on the Landau-Lifshitz-Bloch equation of motion is utilized to study the properties of L10-FePt/TiN/L10-FePt pseudo spin valves (PSVs) in direct comparison with experiment. Theoretical studies give an insight on the crystallographic texture, magnetic properties, reversal behavior, interlayer coupling effects, and magneto-transport properties of the PSVs, in particular, with varying thickness of the top L10-FePt and TiN spacer. We show that morphological changes in the FePt layers, induced by varying the FePt layer thickness, lead to different hysteresis behaviors of the samples, caused by changes in the interlayer and intralayer exchange couplings. Such effects are important for the optimization of the PSVs due to the relationship between the magnetic properties, domain structures, and the magnetoresistance of the device.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4921828</doi></addata></record> |
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| ispartof | Journal of applied physics, 2015-06, Vol.117 (21) |
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| language | eng |
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| source | AIP Journals Complete; Alma/SFX Local Collection |
| subjects | Anisotropy Applied physics Couplings Crystallography Equations of motion Interlayers Intermetallic compounds Iron compounds Magnetic properties Magnetism Magnetoresistance Magnetoresistivity Platinum compounds Spin valves Thickness |
| title | Study of perpendicular anisotropy L10-FePt pseudo spin valves using a micromagnetic trilayer model |
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