Effect of laser beam parameters on magnetic properties of Nd-Fe-B thick-film magnets fabricated by pulsed laser deposition
The effects of varying the laser power and the spot diameter of a laser beam on the magnetic properties, morphology, and deposition rate of Nd-Fe-B thick-film magnets fabricated by pulsed laser deposition (PLD) were investigated. Reducing the laser fluence on the target reduces the remanence and inc...
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| Veröffentlicht in: | Journal of applied physics 2011-04, Vol.109 (7), p.07A758-07A758-3 |
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| container_end_page | 07A758-3 |
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| container_issue | 7 |
| container_start_page | 07A758 |
| container_title | Journal of applied physics |
| container_volume | 109 |
| creator | Fukunaga, H. Kamikawatoko, T. Nakano, M. Yanai, T. Yamashita, F. |
| description | The effects of varying the laser power and the spot diameter of a laser beam on the magnetic properties, morphology, and deposition rate of Nd-Fe-B thick-film magnets fabricated by pulsed laser deposition (PLD) were investigated. Reducing the laser fluence on the target reduces the remanence and increases the Nd content and consequently the coercivity of the prepared films. The spot size of the laser beam was found to affect the film surface morphology, the deposition rate, and the reproducibility of the magnetic properties of the prepared films. Reducing the spot size reduces the number of droplets and the reproducibility of the magnetic properties and increases the droplet size. Controlling the spot size of the laser beam enabled us to maximize the deposition rate. Consequently, a coercivity of 1210 kA/m and a remanence of 0.51 T were obtained at a deposition rate of 11.8
μ
m/(h·W). This deposition rate is 30% greater than the highest previously reported deposition rate by PLD. |
| doi_str_mv | 10.1063/1.3566080 |
| format | Article |
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μ
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μ
m/(h·W). This deposition rate is 30% greater than the highest previously reported deposition rate by PLD.</description><subject>ALLOYS</subject><subject>BEAMS</subject><subject>BORON ALLOYS</subject><subject>COERCIVE FORCE</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>DEPOSITION</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>ENERGY BEAM DEPOSITION</subject><subject>IRON ALLOYS</subject><subject>IRRADIATION</subject><subject>LASER RADIATION</subject><subject>MAGNETIC PROPERTIES</subject><subject>MAGNETS</subject><subject>MATERIALS SCIENCE</subject><subject>NEODYMIUM ALLOYS</subject><subject>PHYSICAL PROPERTIES</subject><subject>PULSED IRRADIATION</subject><subject>RADIATIONS</subject><subject>RARE EARTH ALLOYS</subject><subject>SURFACE COATING</subject><subject>SURFACES</subject><subject>THIN FILMS</subject><subject>TRANSITION ELEMENT ALLOYS</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LxDAURYMoOH4s_AcBVy46Jk3TZjaCiqOC6EbXIU3ec6LTpiRxob_e1s7W1bvwDhfuIeSMsyVntbjkSyHrmim2RxacqVXRSMn2yYKxkhdq1awOyVFKH4xxrsRqQX7uEMFmGpBuTYJIWzAdHUw0HWSIiYaedua9h-wtHWIYIGYPaeKfXbGG4obmjbefBfpttyMTRdNGb00GR9tvOnxt05jmfgdDSD770J-QAzTj53R3j8nb-u719qF4erl_vL1-Kmwlm1wI6yp06KpSVqqsS4fCyLoBxcE44axAbBRCLdCBgkq4hkvWOmSyaquSozgm53NvSNnrZH0Gu7Gh78fduuRSqFKqkbqYKRtDShFQD9F3Jn5rzvSkVnO9UzuyVzM7lZlpy__w7FcH1H_79eRX_AJI7oJV</recordid><startdate>20110401</startdate><enddate>20110401</enddate><creator>Fukunaga, H.</creator><creator>Kamikawatoko, T.</creator><creator>Nakano, M.</creator><creator>Yanai, T.</creator><creator>Yamashita, F.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20110401</creationdate><title>Effect of laser beam parameters on magnetic properties of Nd-Fe-B thick-film magnets fabricated by pulsed laser deposition</title><author>Fukunaga, H. ; Kamikawatoko, T. ; Nakano, M. ; Yanai, T. ; Yamashita, F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c457t-3cd4fdfd42548262df3a567e81ead3dc3ff78fe63fde8e43d7150bdf054b421f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>ALLOYS</topic><topic>BEAMS</topic><topic>BORON ALLOYS</topic><topic>COERCIVE FORCE</topic><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>DEPOSITION</topic><topic>ELECTROMAGNETIC RADIATION</topic><topic>ENERGY BEAM DEPOSITION</topic><topic>IRON ALLOYS</topic><topic>IRRADIATION</topic><topic>LASER RADIATION</topic><topic>MAGNETIC PROPERTIES</topic><topic>MAGNETS</topic><topic>MATERIALS SCIENCE</topic><topic>NEODYMIUM ALLOYS</topic><topic>PHYSICAL PROPERTIES</topic><topic>PULSED IRRADIATION</topic><topic>RADIATIONS</topic><topic>RARE EARTH ALLOYS</topic><topic>SURFACE COATING</topic><topic>SURFACES</topic><topic>THIN FILMS</topic><topic>TRANSITION ELEMENT ALLOYS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Fukunaga, H.</creatorcontrib><creatorcontrib>Kamikawatoko, T.</creatorcontrib><creatorcontrib>Nakano, M.</creatorcontrib><creatorcontrib>Yanai, T.</creatorcontrib><creatorcontrib>Yamashita, F.</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>Fukunaga, H.</au><au>Kamikawatoko, T.</au><au>Nakano, M.</au><au>Yanai, T.</au><au>Yamashita, F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of laser beam parameters on magnetic properties of Nd-Fe-B thick-film magnets fabricated by pulsed laser deposition</atitle><jtitle>Journal of applied physics</jtitle><date>2011-04-01</date><risdate>2011</risdate><volume>109</volume><issue>7</issue><spage>07A758</spage><epage>07A758-3</epage><pages>07A758-07A758-3</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>The effects of varying the laser power and the spot diameter of a laser beam on the magnetic properties, morphology, and deposition rate of Nd-Fe-B thick-film magnets fabricated by pulsed laser deposition (PLD) were investigated. Reducing the laser fluence on the target reduces the remanence and increases the Nd content and consequently the coercivity of the prepared films. The spot size of the laser beam was found to affect the film surface morphology, the deposition rate, and the reproducibility of the magnetic properties of the prepared films. Reducing the spot size reduces the number of droplets and the reproducibility of the magnetic properties and increases the droplet size. Controlling the spot size of the laser beam enabled us to maximize the deposition rate. Consequently, a coercivity of 1210 kA/m and a remanence of 0.51 T were obtained at a deposition rate of 11.8
μ
m/(h·W). This deposition rate is 30% greater than the highest previously reported deposition rate by PLD.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><doi>10.1063/1.3566080</doi><oa>free_for_read</oa></addata></record> |
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| identifier | ISSN: 0021-8979 |
| ispartof | Journal of applied physics, 2011-04, Vol.109 (7), p.07A758-07A758-3 |
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| source | American Institute of Physics (AIP) Journals; AIP Digital Archive; Alma/SFX Local Collection |
| subjects | ALLOYS BEAMS BORON ALLOYS COERCIVE FORCE CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY DEPOSITION ELECTROMAGNETIC RADIATION ENERGY BEAM DEPOSITION IRON ALLOYS IRRADIATION LASER RADIATION MAGNETIC PROPERTIES MAGNETS MATERIALS SCIENCE NEODYMIUM ALLOYS PHYSICAL PROPERTIES PULSED IRRADIATION RADIATIONS RARE EARTH ALLOYS SURFACE COATING SURFACES THIN FILMS TRANSITION ELEMENT ALLOYS |
| title | Effect of laser beam parameters on magnetic properties of Nd-Fe-B thick-film magnets fabricated by pulsed laser deposition |
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