Influence of ion implantation on the magnetic properties of thin FeCo films
Modifications of 73 - nm -thick polycrystalline FeCo films by magnetic-field-assisted implantation of Ne , Xe , and Au ions have been investigated. For magnetic characterization, the longitudinal magneto-optic Kerr effect and magnetic force microscopy (MFM) in the remanent state have been used, whil...
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| Veröffentlicht in: | Journal of applied physics 2005-04, Vol.97 (7), p.073911-073911-7 |
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| container_end_page | 073911-7 |
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| container_title | Journal of applied physics |
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| creator | Gupta, Ratnesh Han, K.-H. Lieb, K. P. Müller, G. A. Schaaf, P. Zhang, K. |
| description | Modifications of
73
-
nm
-thick polycrystalline
FeCo
films by magnetic-field-assisted implantation of
Ne
,
Xe
, and
Au
ions have been investigated. For magnetic characterization, the longitudinal magneto-optic Kerr effect and magnetic force microscopy (MFM) in the remanent state have been used, while structural information has been gained from glancing-angle x-ray diffraction and Rutherford backscattering spectroscopy. The irradiated films show a soft-magnetic behavior with large magnetic anisotropy. The
Ne
ions initially induce an increasing coercivity, possibly due to radiation defects accumulated during the ion implantation, while higher
Ne
fluences anneal out the defects and reduce the coercivity. For the heavy ions the deposited energy density is high enough to reduce the coercivity at small fluences and then to increase it slightly for increasing fluence. Correlations between the magnetic anisotropy, coercivity and the ion species and fluence have been established. The MFM pictures feature the largest changes in the case of
Au
ions. The magnetic anisotropy reflects the interplay between magnetocrystalline and magnetostrictive forces. For heavier ions and large fluences, the direction of the in-plane magnetic easy axis follows the orientation of the external magnetic field present during implantation. |
| doi_str_mv | 10.1063/1.1875737 |
| format | Article |
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73
-
nm
-thick polycrystalline
FeCo
films by magnetic-field-assisted implantation of
Ne
,
Xe
, and
Au
ions have been investigated. For magnetic characterization, the longitudinal magneto-optic Kerr effect and magnetic force microscopy (MFM) in the remanent state have been used, while structural information has been gained from glancing-angle x-ray diffraction and Rutherford backscattering spectroscopy. The irradiated films show a soft-magnetic behavior with large magnetic anisotropy. The
Ne
ions initially induce an increasing coercivity, possibly due to radiation defects accumulated during the ion implantation, while higher
Ne
fluences anneal out the defects and reduce the coercivity. For the heavy ions the deposited energy density is high enough to reduce the coercivity at small fluences and then to increase it slightly for increasing fluence. Correlations between the magnetic anisotropy, coercivity and the ion species and fluence have been established. The MFM pictures feature the largest changes in the case of
Au
ions. The magnetic anisotropy reflects the interplay between magnetocrystalline and magnetostrictive forces. For heavier ions and large fluences, the direction of the in-plane magnetic easy axis follows the orientation of the external magnetic field present during implantation.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.1875737</identifier><identifier>CODEN: JAPIAU</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>ANISOTROPY ; ATOMIC FORCE MICROSCOPY ; BINARY ALLOY SYSTEMS ; COBALT ALLOYS ; COERCIVE FORCE ; ENERGY DENSITY ; FERROMAGNETIC MATERIALS ; GOLD IONS ; HEAVY IONS ; ION IMPLANTATION ; IRON ALLOYS ; KERR EFFECT ; MAGNETIC FIELDS ; MAGNETO-OPTICAL EFFECTS ; MAGNETOSTRICTION ; MATERIALS SCIENCE ; NEON IONS ; RUTHERFORD BACKSCATTERING SPECTROSCOPY ; THIN FILMS ; X-RAY DIFFRACTION ; XENON IONS</subject><ispartof>Journal of applied physics, 2005-04, Vol.97 (7), p.073911-073911-7</ispartof><rights>2005 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c312t-a3b3ebe4bf0dc7491c222665569861ffa4a6812a09b6cb49ad7efef5cdb616623</citedby><cites>FETCH-LOGICAL-c312t-a3b3ebe4bf0dc7491c222665569861ffa4a6812a09b6cb49ad7efef5cdb616623</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://pubs.aip.org/jap/article-lookup/doi/10.1063/1.1875737$$EHTML$$P50$$Gscitation$$H</linktohtml><link.rule.ids>230,315,782,786,796,887,1561,4514,27931,27932,76392,76398</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/20668285$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Gupta, Ratnesh</creatorcontrib><creatorcontrib>Han, K.-H.</creatorcontrib><creatorcontrib>Lieb, K. P.</creatorcontrib><creatorcontrib>Müller, G. A.</creatorcontrib><creatorcontrib>Schaaf, P.</creatorcontrib><creatorcontrib>Zhang, K.</creatorcontrib><title>Influence of ion implantation on the magnetic properties of thin FeCo films</title><title>Journal of applied physics</title><description>Modifications of
73
-
nm
-thick polycrystalline
FeCo
films by magnetic-field-assisted implantation of
Ne
,
Xe
, and
Au
ions have been investigated. For magnetic characterization, the longitudinal magneto-optic Kerr effect and magnetic force microscopy (MFM) in the remanent state have been used, while structural information has been gained from glancing-angle x-ray diffraction and Rutherford backscattering spectroscopy. The irradiated films show a soft-magnetic behavior with large magnetic anisotropy. The
Ne
ions initially induce an increasing coercivity, possibly due to radiation defects accumulated during the ion implantation, while higher
Ne
fluences anneal out the defects and reduce the coercivity. For the heavy ions the deposited energy density is high enough to reduce the coercivity at small fluences and then to increase it slightly for increasing fluence. Correlations between the magnetic anisotropy, coercivity and the ion species and fluence have been established. The MFM pictures feature the largest changes in the case of
Au
ions. The magnetic anisotropy reflects the interplay between magnetocrystalline and magnetostrictive forces. For heavier ions and large fluences, the direction of the in-plane magnetic easy axis follows the orientation of the external magnetic field present during implantation.</description><subject>ANISOTROPY</subject><subject>ATOMIC FORCE MICROSCOPY</subject><subject>BINARY ALLOY SYSTEMS</subject><subject>COBALT ALLOYS</subject><subject>COERCIVE FORCE</subject><subject>ENERGY DENSITY</subject><subject>FERROMAGNETIC MATERIALS</subject><subject>GOLD IONS</subject><subject>HEAVY IONS</subject><subject>ION IMPLANTATION</subject><subject>IRON ALLOYS</subject><subject>KERR EFFECT</subject><subject>MAGNETIC FIELDS</subject><subject>MAGNETO-OPTICAL EFFECTS</subject><subject>MAGNETOSTRICTION</subject><subject>MATERIALS SCIENCE</subject><subject>NEON IONS</subject><subject>RUTHERFORD BACKSCATTERING SPECTROSCOPY</subject><subject>THIN FILMS</subject><subject>X-RAY DIFFRACTION</subject><subject>XENON IONS</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNp10MFKAzEQBuAgCtbqwTdY8ORhaybZzSYXQYrVYsGLnkM2ndjIbrJs4sG3t2uLN2FgGPj4YX5CroEugAp-BwuQTd3w5oTMgEpVNnVNT8mMUgalVI06JxcpfVIKILmakZd1cN0XBotFdIWPofD90JmQTZ6O_eQdFr35CJi9LYYxDjhmj2nieedDscJlLJzv-nRJzpzpEl4d95y8rx7fls_l5vVpvXzYlJYDy6XhLccWq9bRrW0qBZYxJkRdCyUFOGcqIyQwQ1UrbFsps23QoavtthUgBONzcnPIjSl7nazPaHc2hoA2a0aFkEzWe3V7UHaMKY3o9DD63ozfGqieutKgj13t7f3BTmG_n_-P_wrT0elJ7gvjP7J3cPw</recordid><startdate>20050401</startdate><enddate>20050401</enddate><creator>Gupta, Ratnesh</creator><creator>Han, K.-H.</creator><creator>Lieb, K. P.</creator><creator>Müller, G. A.</creator><creator>Schaaf, P.</creator><creator>Zhang, K.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20050401</creationdate><title>Influence of ion implantation on the magnetic properties of thin FeCo films</title><author>Gupta, Ratnesh ; Han, K.-H. ; Lieb, K. P. ; Müller, G. A. ; Schaaf, P. ; Zhang, K.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c312t-a3b3ebe4bf0dc7491c222665569861ffa4a6812a09b6cb49ad7efef5cdb616623</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>ANISOTROPY</topic><topic>ATOMIC FORCE MICROSCOPY</topic><topic>BINARY ALLOY SYSTEMS</topic><topic>COBALT ALLOYS</topic><topic>COERCIVE FORCE</topic><topic>ENERGY DENSITY</topic><topic>FERROMAGNETIC MATERIALS</topic><topic>GOLD IONS</topic><topic>HEAVY IONS</topic><topic>ION IMPLANTATION</topic><topic>IRON ALLOYS</topic><topic>KERR EFFECT</topic><topic>MAGNETIC FIELDS</topic><topic>MAGNETO-OPTICAL EFFECTS</topic><topic>MAGNETOSTRICTION</topic><topic>MATERIALS SCIENCE</topic><topic>NEON IONS</topic><topic>RUTHERFORD BACKSCATTERING SPECTROSCOPY</topic><topic>THIN FILMS</topic><topic>X-RAY DIFFRACTION</topic><topic>XENON IONS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Gupta, Ratnesh</creatorcontrib><creatorcontrib>Han, K.-H.</creatorcontrib><creatorcontrib>Lieb, K. P.</creatorcontrib><creatorcontrib>Müller, G. A.</creatorcontrib><creatorcontrib>Schaaf, P.</creatorcontrib><creatorcontrib>Zhang, K.</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Gupta, Ratnesh</au><au>Han, K.-H.</au><au>Lieb, K. P.</au><au>Müller, G. A.</au><au>Schaaf, P.</au><au>Zhang, K.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of ion implantation on the magnetic properties of thin FeCo films</atitle><jtitle>Journal of applied physics</jtitle><date>2005-04-01</date><risdate>2005</risdate><volume>97</volume><issue>7</issue><spage>073911</spage><epage>073911-7</epage><pages>073911-073911-7</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>Modifications of
73
-
nm
-thick polycrystalline
FeCo
films by magnetic-field-assisted implantation of
Ne
,
Xe
, and
Au
ions have been investigated. For magnetic characterization, the longitudinal magneto-optic Kerr effect and magnetic force microscopy (MFM) in the remanent state have been used, while structural information has been gained from glancing-angle x-ray diffraction and Rutherford backscattering spectroscopy. The irradiated films show a soft-magnetic behavior with large magnetic anisotropy. The
Ne
ions initially induce an increasing coercivity, possibly due to radiation defects accumulated during the ion implantation, while higher
Ne
fluences anneal out the defects and reduce the coercivity. For the heavy ions the deposited energy density is high enough to reduce the coercivity at small fluences and then to increase it slightly for increasing fluence. Correlations between the magnetic anisotropy, coercivity and the ion species and fluence have been established. The MFM pictures feature the largest changes in the case of
Au
ions. The magnetic anisotropy reflects the interplay between magnetocrystalline and magnetostrictive forces. For heavier ions and large fluences, the direction of the in-plane magnetic easy axis follows the orientation of the external magnetic field present during implantation.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><doi>10.1063/1.1875737</doi></addata></record> |
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| ispartof | Journal of applied physics, 2005-04, Vol.97 (7), p.073911-073911-7 |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_osti_scitechconnect_20668285 |
| source | AIP Journals Complete; AIP Digital Archive |
| subjects | ANISOTROPY ATOMIC FORCE MICROSCOPY BINARY ALLOY SYSTEMS COBALT ALLOYS COERCIVE FORCE ENERGY DENSITY FERROMAGNETIC MATERIALS GOLD IONS HEAVY IONS ION IMPLANTATION IRON ALLOYS KERR EFFECT MAGNETIC FIELDS MAGNETO-OPTICAL EFFECTS MAGNETOSTRICTION MATERIALS SCIENCE NEON IONS RUTHERFORD BACKSCATTERING SPECTROSCOPY THIN FILMS X-RAY DIFFRACTION XENON IONS |
| title | Influence of ion implantation on the magnetic properties of thin FeCo films |
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