A new magneto-optic enhancement effect in macroscopic ferrimagnets
Optical and magneto-optic properties at room temperature of Co/sub 1-x/(EuS)/sub x/ evaporated thin films are presented over a wide photon-energy range. Co/sub 1-x/(EuS)/sub x/ belongs to a new class of phase-separated magnetic materials, called macroscopic ferrimagnets, in which two magnetic phases...
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| Veröffentlicht in: | IEEE transactions on magnetics 1995-11, Vol.31 (6), p.3319-3324 |
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| container_end_page | 3324 |
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| container_issue | 6 |
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| container_title | IEEE transactions on magnetics |
| container_volume | 31 |
| creator | Fumagalli, P. Spaeth, C. Rudiger, U. Gambino, R.J. |
| description | Optical and magneto-optic properties at room temperature of Co/sub 1-x/(EuS)/sub x/ evaporated thin films are presented over a wide photon-energy range. Co/sub 1-x/(EuS)/sub x/ belongs to a new class of phase-separated magnetic materials, called macroscopic ferrimagnets, in which two magnetic phases couple antiferromagnetically across the phase boundary. Polar Kerr rotations of up to 2/spl deg/ are observed in Co rich samples (x/spl les/0.3) at photon energies of 4.5 eV. The high Kerr rotation coincides with a distinct decrease in reflectivity suggesting an optical enhancement effect. A model calculation indicates a new type of enhancement based on the relative index of refraction at the phase boundary between the Co matrix and the EuS precipitate particles. |
| doi_str_mv | 10.1109/20.490370 |
| format | Article |
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Co/sub 1-x/(EuS)/sub x/ belongs to a new class of phase-separated magnetic materials, called macroscopic ferrimagnets, in which two magnetic phases couple antiferromagnetically across the phase boundary. Polar Kerr rotations of up to 2/spl deg/ are observed in Co rich samples (x/spl les/0.3) at photon energies of 4.5 eV. The high Kerr rotation coincides with a distinct decrease in reflectivity suggesting an optical enhancement effect. A model calculation indicates a new type of enhancement based on the relative index of refraction at the phase boundary between the Co matrix and the EuS precipitate particles.</description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/20.490370</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Antiferromagnetic materials ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Exact sciences and technology ; Magnetic anisotropy ; Magnetic hysteresis ; Magnetic materials ; Magnetic separation ; Magnetooptic effects ; Magnetooptical effects ; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation ; Optical properties of bulk materials and thin films ; Optical refraction ; Perpendicular magnetic anisotropy ; Physics ; Temperature ; Transistors</subject><ispartof>IEEE transactions on magnetics, 1995-11, Vol.31 (6), p.3319-3324</ispartof><rights>1996 INIST-CNRS</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-553a22a89029402a54d78cf64e62484f3bf8ebb482cf18b3ef223a4e3152338d3</citedby><cites>FETCH-LOGICAL-c337t-553a22a89029402a54d78cf64e62484f3bf8ebb482cf18b3ef223a4e3152338d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/490370$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>310,311,315,781,785,790,791,797,23932,23933,25142,27926,27927,54760</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/490370$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2911619$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Fumagalli, P.</creatorcontrib><creatorcontrib>Spaeth, C.</creatorcontrib><creatorcontrib>Rudiger, U.</creatorcontrib><creatorcontrib>Gambino, R.J.</creatorcontrib><title>A new magneto-optic enhancement effect in macroscopic ferrimagnets</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>Optical and magneto-optic properties at room temperature of Co/sub 1-x/(EuS)/sub x/ evaporated thin films are presented over a wide photon-energy range. Co/sub 1-x/(EuS)/sub x/ belongs to a new class of phase-separated magnetic materials, called macroscopic ferrimagnets, in which two magnetic phases couple antiferromagnetically across the phase boundary. Polar Kerr rotations of up to 2/spl deg/ are observed in Co rich samples (x/spl les/0.3) at photon energies of 4.5 eV. The high Kerr rotation coincides with a distinct decrease in reflectivity suggesting an optical enhancement effect. A model calculation indicates a new type of enhancement based on the relative index of refraction at the phase boundary between the Co matrix and the EuS precipitate particles.</description><subject>Antiferromagnetic materials</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Exact sciences and technology</subject><subject>Magnetic anisotropy</subject><subject>Magnetic hysteresis</subject><subject>Magnetic materials</subject><subject>Magnetic separation</subject><subject>Magnetooptic effects</subject><subject>Magnetooptical effects</subject><subject>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</subject><subject>Optical properties of bulk materials and thin films</subject><subject>Optical refraction</subject><subject>Perpendicular magnetic anisotropy</subject><subject>Physics</subject><subject>Temperature</subject><subject>Transistors</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNqF0E1LxDAQBuAgCq6rB6-eehDBQ9d8TNvkuC5-wYIXPYc0O9FKN61JF_Hfm9Jlr57CkGdemJeQS0YXjFF1x-kCFBUVPSIzpoDllJbqmMwoZTJXUMIpOYvxK41QMDoj98vM40-2NR8ehy7v-qGxGfpP4y1u0Q8ZOod2yBqfjA1dtF2fhMMQmmkpnpMTZ9qIF_t3Tt4fH95Wz_n69elltVznVohqyItCGM6NVJQroNwUsKmkdSVgyUGCE7WTWNcguXVM1gId58IAClZwIeRGzMnNlNuH7nuHcdDbJlpsW-Ox20XNJahCVOx_WEFVgBAJ3k5wPCwGdLofrwq_mlE91qk51VOdyV7vQ020pnUhNdTEwwJXjJVMJXY1sQYRD7_7jD9VInrz</recordid><startdate>19951101</startdate><enddate>19951101</enddate><creator>Fumagalli, P.</creator><creator>Spaeth, C.</creator><creator>Rudiger, U.</creator><creator>Gambino, R.J.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>19951101</creationdate><title>A new magneto-optic enhancement effect in macroscopic ferrimagnets</title><author>Fumagalli, P. ; Spaeth, C. ; Rudiger, U. ; Gambino, R.J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-553a22a89029402a54d78cf64e62484f3bf8ebb482cf18b3ef223a4e3152338d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1995</creationdate><topic>Antiferromagnetic materials</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Exact sciences and technology</topic><topic>Magnetic anisotropy</topic><topic>Magnetic hysteresis</topic><topic>Magnetic materials</topic><topic>Magnetic separation</topic><topic>Magnetooptic effects</topic><topic>Magnetooptical effects</topic><topic>Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation</topic><topic>Optical properties of bulk materials and thin films</topic><topic>Optical refraction</topic><topic>Perpendicular magnetic anisotropy</topic><topic>Physics</topic><topic>Temperature</topic><topic>Transistors</topic><toplevel>online_resources</toplevel><creatorcontrib>Fumagalli, P.</creatorcontrib><creatorcontrib>Spaeth, C.</creatorcontrib><creatorcontrib>Rudiger, U.</creatorcontrib><creatorcontrib>Gambino, R.J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Fumagalli, P.</au><au>Spaeth, C.</au><au>Rudiger, U.</au><au>Gambino, R.J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A new magneto-optic enhancement effect in macroscopic ferrimagnets</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>1995-11-01</date><risdate>1995</risdate><volume>31</volume><issue>6</issue><spage>3319</spage><epage>3324</epage><pages>3319-3324</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>Optical and magneto-optic properties at room temperature of Co/sub 1-x/(EuS)/sub x/ evaporated thin films are presented over a wide photon-energy range. Co/sub 1-x/(EuS)/sub x/ belongs to a new class of phase-separated magnetic materials, called macroscopic ferrimagnets, in which two magnetic phases couple antiferromagnetically across the phase boundary. Polar Kerr rotations of up to 2/spl deg/ are observed in Co rich samples (x/spl les/0.3) at photon energies of 4.5 eV. The high Kerr rotation coincides with a distinct decrease in reflectivity suggesting an optical enhancement effect. A model calculation indicates a new type of enhancement based on the relative index of refraction at the phase boundary between the Co matrix and the EuS precipitate particles.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/20.490370</doi><tpages>6</tpages></addata></record> |
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| source | IEEE Electronic Library (IEL) |
| subjects | Antiferromagnetic materials Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetic anisotropy Magnetic hysteresis Magnetic materials Magnetic separation Magnetooptic effects Magnetooptical effects Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of bulk materials and thin films Optical refraction Perpendicular magnetic anisotropy Physics Temperature Transistors |
| title | A new magneto-optic enhancement effect in macroscopic ferrimagnets |
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