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Magnetic and transport properties of Co nanoparticles embedded in a carbon matrix
Co nanoparticles embedded in a carbon matrix have been prepared by gas condensation using a cluster gun. The magnetic, microstructural, and transport properties of the Co nanoparticles can be controlled by the volume fraction of Co particles, which is adjusted by the sputtering time of Co. With the...
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| Published in: | Journal of applied physics 2005-05, Vol.97 (10), p.10J303-10J303-3 |
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| Main Authors: | , , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c312t-1e9fc581f5ff8c6ccc1a4b99597d298d5b28b4cd29445b3b08655fd039dba04f3 |
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| cites | cdi_FETCH-LOGICAL-c312t-1e9fc581f5ff8c6ccc1a4b99597d298d5b28b4cd29445b3b08655fd039dba04f3 |
| container_end_page | 10J303-3 |
| container_issue | 10 |
| container_start_page | 10J303 |
| container_title | Journal of applied physics |
| container_volume | 97 |
| creator | Liu, P. Huang, Y. Zhang, Y. Bonder, M. J. Hadjipanayis, G. C. Vlachos, D. Deshmukh, S. R. |
| description | Co nanoparticles embedded in a carbon matrix have been prepared by gas condensation using a cluster gun. The magnetic, microstructural, and transport properties of the Co nanoparticles can be controlled by the volume fraction of Co particles, which is adjusted by the sputtering time of Co. With the decrease of the amount of Co, the transport properties of thin films showed a transition from a metallic to a semiconductorlike behavior. The sample with a semiconductorlike behavior showed a superparamagnetic behavior with a blocking temperature around
130
K
. The blocking temperature of the Co particles was found to decrease with the decrease of Co sputtering time, indicating a decrease in the average particle size because of the shorter sputtering time. |
| doi_str_mv | 10.1063/1.1846512 |
| format | article |
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130
K
. The blocking temperature of the Co particles was found to decrease with the decrease of Co sputtering time, indicating a decrease in the average particle size because of the shorter sputtering time.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.1846512</identifier><identifier>CODEN: JAPIAU</identifier><language>eng</language><publisher>United States: American Institute of Physics</publisher><subject>CARBON ; CHANNELING ; CHARGED-PARTICLE TRANSPORT ; COBALT ; COERCIVE FORCE ; CRYSTAL STRUCTURE ; DEPOSITION ; FERROMAGNETIC MATERIALS ; HYSTERESIS ; MAGNETORESISTANCE ; MATERIALS SCIENCE ; MICROSTRUCTURE ; NANOSTRUCTURES ; PARTICLE SIZE ; PARTICLES ; SPUTTERING ; SUPERPARAMAGNETISM ; TEMPERATURE RANGE 0065-0273 K ; THIN FILMS ; TRANSMISSION ELECTRON MICROSCOPY ; TUNNEL EFFECT</subject><ispartof>Journal of applied physics, 2005-05, Vol.97 (10), p.10J303-10J303-3</ispartof><rights>2005 American Institute of Physics</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c312t-1e9fc581f5ff8c6ccc1a4b99597d298d5b28b4cd29445b3b08655fd039dba04f3</citedby><cites>FETCH-LOGICAL-c312t-1e9fc581f5ff8c6ccc1a4b99597d298d5b28b4cd29445b3b08655fd039dba04f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/20711642$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Liu, P.</creatorcontrib><creatorcontrib>Huang, Y.</creatorcontrib><creatorcontrib>Zhang, Y.</creatorcontrib><creatorcontrib>Bonder, M. J.</creatorcontrib><creatorcontrib>Hadjipanayis, G. C.</creatorcontrib><creatorcontrib>Vlachos, D.</creatorcontrib><creatorcontrib>Deshmukh, S. R.</creatorcontrib><title>Magnetic and transport properties of Co nanoparticles embedded in a carbon matrix</title><title>Journal of applied physics</title><description>Co nanoparticles embedded in a carbon matrix have been prepared by gas condensation using a cluster gun. The magnetic, microstructural, and transport properties of the Co nanoparticles can be controlled by the volume fraction of Co particles, which is adjusted by the sputtering time of Co. With the decrease of the amount of Co, the transport properties of thin films showed a transition from a metallic to a semiconductorlike behavior. The sample with a semiconductorlike behavior showed a superparamagnetic behavior with a blocking temperature around
130
K
. The blocking temperature of the Co particles was found to decrease with the decrease of Co sputtering time, indicating a decrease in the average particle size because of the shorter sputtering time.</description><subject>CARBON</subject><subject>CHANNELING</subject><subject>CHARGED-PARTICLE TRANSPORT</subject><subject>COBALT</subject><subject>COERCIVE FORCE</subject><subject>CRYSTAL STRUCTURE</subject><subject>DEPOSITION</subject><subject>FERROMAGNETIC MATERIALS</subject><subject>HYSTERESIS</subject><subject>MAGNETORESISTANCE</subject><subject>MATERIALS SCIENCE</subject><subject>MICROSTRUCTURE</subject><subject>NANOSTRUCTURES</subject><subject>PARTICLE SIZE</subject><subject>PARTICLES</subject><subject>SPUTTERING</subject><subject>SUPERPARAMAGNETISM</subject><subject>TEMPERATURE RANGE 0065-0273 K</subject><subject>THIN FILMS</subject><subject>TRANSMISSION ELECTRON MICROSCOPY</subject><subject>TUNNEL EFFECT</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNp1kE1LAzEURYMoWKsL_0HAlYupeTOTabIRpPgFFRF0HZKXRCNtMiRZ6L93pHXp6l4uh7s4hJwDWwAbuitYgOgHDu0BmQETsllyzg7JjLEWGiGX8piclPLJGIDo5Iy8POn36GpAqqOlNetYxpQrHXMaXa7BFZo8XSUadUyjnhbcTJvbGmetszREqinqbFKkW11z-DolR15vijvb55y83d2-rh6a9fP94-pm3WAHbW3ASY9cgOfeCxwQEXRvpORyaVspLDetMD1Ove-56QwTA-fesk5ao1nvuzm52P2mUoMqGKrDD0wxOqyqZUuAoW8n6nJHYU6lZOfVmMNW528FTP0aU6D2xib2esf-nukaUvwf_tOmJm1qr637AQeuc0c</recordid><startdate>20050515</startdate><enddate>20050515</enddate><creator>Liu, P.</creator><creator>Huang, Y.</creator><creator>Zhang, Y.</creator><creator>Bonder, M. J.</creator><creator>Hadjipanayis, G. C.</creator><creator>Vlachos, D.</creator><creator>Deshmukh, S. R.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20050515</creationdate><title>Magnetic and transport properties of Co nanoparticles embedded in a carbon matrix</title><author>Liu, P. ; Huang, Y. ; Zhang, Y. ; Bonder, M. J. ; Hadjipanayis, G. C. ; Vlachos, D. ; Deshmukh, S. R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c312t-1e9fc581f5ff8c6ccc1a4b99597d298d5b28b4cd29445b3b08655fd039dba04f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>CARBON</topic><topic>CHANNELING</topic><topic>CHARGED-PARTICLE TRANSPORT</topic><topic>COBALT</topic><topic>COERCIVE FORCE</topic><topic>CRYSTAL STRUCTURE</topic><topic>DEPOSITION</topic><topic>FERROMAGNETIC MATERIALS</topic><topic>HYSTERESIS</topic><topic>MAGNETORESISTANCE</topic><topic>MATERIALS SCIENCE</topic><topic>MICROSTRUCTURE</topic><topic>NANOSTRUCTURES</topic><topic>PARTICLE SIZE</topic><topic>PARTICLES</topic><topic>SPUTTERING</topic><topic>SUPERPARAMAGNETISM</topic><topic>TEMPERATURE RANGE 0065-0273 K</topic><topic>THIN FILMS</topic><topic>TRANSMISSION ELECTRON MICROSCOPY</topic><topic>TUNNEL EFFECT</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liu, P.</creatorcontrib><creatorcontrib>Huang, Y.</creatorcontrib><creatorcontrib>Zhang, Y.</creatorcontrib><creatorcontrib>Bonder, M. J.</creatorcontrib><creatorcontrib>Hadjipanayis, G. C.</creatorcontrib><creatorcontrib>Vlachos, D.</creatorcontrib><creatorcontrib>Deshmukh, S. R.</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>Liu, P.</au><au>Huang, Y.</au><au>Zhang, Y.</au><au>Bonder, M. J.</au><au>Hadjipanayis, G. C.</au><au>Vlachos, D.</au><au>Deshmukh, S. R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic and transport properties of Co nanoparticles embedded in a carbon matrix</atitle><jtitle>Journal of applied physics</jtitle><date>2005-05-15</date><risdate>2005</risdate><volume>97</volume><issue>10</issue><spage>10J303</spage><epage>10J303-3</epage><pages>10J303-10J303-3</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>Co nanoparticles embedded in a carbon matrix have been prepared by gas condensation using a cluster gun. The magnetic, microstructural, and transport properties of the Co nanoparticles can be controlled by the volume fraction of Co particles, which is adjusted by the sputtering time of Co. With the decrease of the amount of Co, the transport properties of thin films showed a transition from a metallic to a semiconductorlike behavior. The sample with a semiconductorlike behavior showed a superparamagnetic behavior with a blocking temperature around
130
K
. The blocking temperature of the Co particles was found to decrease with the decrease of Co sputtering time, indicating a decrease in the average particle size because of the shorter sputtering time.</abstract><cop>United States</cop><pub>American Institute of Physics</pub><doi>10.1063/1.1846512</doi></addata></record> |
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| identifier | ISSN: 0021-8979 |
| ispartof | Journal of applied physics, 2005-05, Vol.97 (10), p.10J303-10J303-3 |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_osti_scitechconnect_20711642 |
| source | American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list) |
| subjects | CARBON CHANNELING CHARGED-PARTICLE TRANSPORT COBALT COERCIVE FORCE CRYSTAL STRUCTURE DEPOSITION FERROMAGNETIC MATERIALS HYSTERESIS MAGNETORESISTANCE MATERIALS SCIENCE MICROSTRUCTURE NANOSTRUCTURES PARTICLE SIZE PARTICLES SPUTTERING SUPERPARAMAGNETISM TEMPERATURE RANGE 0065-0273 K THIN FILMS TRANSMISSION ELECTRON MICROSCOPY TUNNEL EFFECT |
| title | Magnetic and transport properties of Co nanoparticles embedded in a carbon matrix |
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