Magnetic properties of carbon nanoparticles
Magnetization M (T, B) of powder and glassy samples containing carbon nanoparticles is investigated in the interval of temperatures T between ~ 3 - 300 K and magnetic fields B up to 5 T. Low-field magnetization, M (T), exhibits a strong magnetic irreversibility, which is suppressed above the field o...
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| Veröffentlicht in: | IOP conference series. Materials Science and Engineering 2012-01, Vol.38 (1), p.12010-7 |
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| container_title | IOP conference series. Materials Science and Engineering |
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| creator | Lähderanta, E Lashkul, A V Lisunov, K G Zherebtsov, D A Galimov, D M Titkov, A N |
| description | Magnetization M (T, B) of powder and glassy samples containing carbon nanoparticles is investigated in the interval of temperatures T between ~ 3 - 300 K and magnetic fields B up to 5 T. Low-field magnetization, M (T), exhibits a strong magnetic irreversibility, which is suppressed above the field of ∼ 1 T. The dependence of M (B) saturates at high temperatures above B ∼ 2 T, magnetic hysteresis is observed already at 300 K. The values of the saturation magnetization, the coercivity field and the maximum blocking temperature are obtained. Analysis of the experimental data gives evidence for concentration of the magnetization close to the surface of the particles, which is consistent with the origin of magnetism in nanocarbon presumably due to intrinsic disorder and surface defects. |
| doi_str_mv | 10.1088/1757-899X/38/1/012010 |
| format | Article |
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Low-field magnetization, M (T), exhibits a strong magnetic irreversibility, which is suppressed above the field of ∼ 1 T. The dependence of M (B) saturates at high temperatures above B ∼ 2 T, magnetic hysteresis is observed already at 300 K. The values of the saturation magnetization, the coercivity field and the maximum blocking temperature are obtained. 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Materials Science and Engineering</title><description>Magnetization M (T, B) of powder and glassy samples containing carbon nanoparticles is investigated in the interval of temperatures T between ~ 3 - 300 K and magnetic fields B up to 5 T. Low-field magnetization, M (T), exhibits a strong magnetic irreversibility, which is suppressed above the field of ∼ 1 T. The dependence of M (B) saturates at high temperatures above B ∼ 2 T, magnetic hysteresis is observed already at 300 K. The values of the saturation magnetization, the coercivity field and the maximum blocking temperature are obtained. Analysis of the experimental data gives evidence for concentration of the magnetization close to the surface of the particles, which is consistent with the origin of magnetism in nanocarbon presumably due to intrinsic disorder and surface defects.</description><subject>Carbon</subject><subject>Coercive force</subject><subject>Coercivity</subject><subject>High temperature</subject><subject>Hysteresis</subject><subject>Intervals</subject><subject>Magnetic fields</subject><subject>Magnetic properties</subject><subject>Magnetic saturation</subject><subject>Magnetism</subject><subject>Magnetization</subject><subject>Materials science</subject><subject>Nanoparticles</subject><subject>Nanostructure</subject><subject>Surface defects</subject><issn>1757-899X</issn><issn>1757-8981</issn><issn>1757-899X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpdkE9LxDAQxYMouK5-BKHgRZC6k39Ne5TFVWHFi4K3kKYT6dJtatI9-O1NqYh4mnmP3wyPR8glhVsKZbmiSqq8rKr3FU9iBZQBhSOy-PWP_-yn5CzGHUChhIAFuXk2Hz2Orc2G4AcMY4sx8y6zJtS-z3rT-8Ek13YYz8mJM13Ei5-5JG-b-9f1Y759eXha321zyws65iU6WTccHC-qxpRlTWvrWJOUYLTg2DjJHIAwTAirmOXKITjbFEJaFLXgS3I9_02RPg8YR71vo8WuMz36Q9RU8XQuFdCEXv1Dd_4Q-pROM1kIkBXQKlFypmzwMQZ0egjt3oQvTUFPFeqpHj3Vo3kSeq6QfwPT-2OV</recordid><startdate>20120101</startdate><enddate>20120101</enddate><creator>Lähderanta, E</creator><creator>Lashkul, A V</creator><creator>Lisunov, K G</creator><creator>Zherebtsov, D A</creator><creator>Galimov, D M</creator><creator>Titkov, A N</creator><general>IOP Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M7S</scope><scope>PDBOC</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>7SR</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20120101</creationdate><title>Magnetic properties of carbon nanoparticles</title><author>Lähderanta, E ; 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Materials Science and Engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lähderanta, E</au><au>Lashkul, A V</au><au>Lisunov, K G</au><au>Zherebtsov, D A</au><au>Galimov, D M</au><au>Titkov, A N</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic properties of carbon nanoparticles</atitle><jtitle>IOP conference series. Materials Science and Engineering</jtitle><date>2012-01-01</date><risdate>2012</risdate><volume>38</volume><issue>1</issue><spage>12010</spage><epage>7</epage><pages>12010-7</pages><issn>1757-899X</issn><issn>1757-8981</issn><eissn>1757-899X</eissn><abstract>Magnetization M (T, B) of powder and glassy samples containing carbon nanoparticles is investigated in the interval of temperatures T between ~ 3 - 300 K and magnetic fields B up to 5 T. Low-field magnetization, M (T), exhibits a strong magnetic irreversibility, which is suppressed above the field of ∼ 1 T. The dependence of M (B) saturates at high temperatures above B ∼ 2 T, magnetic hysteresis is observed already at 300 K. The values of the saturation magnetization, the coercivity field and the maximum blocking temperature are obtained. Analysis of the experimental data gives evidence for concentration of the magnetization close to the surface of the particles, which is consistent with the origin of magnetism in nanocarbon presumably due to intrinsic disorder and surface defects.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/1757-899X/38/1/012010</doi><tpages>7</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Carbon Coercive force Coercivity High temperature Hysteresis Intervals Magnetic fields Magnetic properties Magnetic saturation Magnetism Magnetization Materials science Nanoparticles Nanostructure Surface defects |
| title | Magnetic properties of carbon nanoparticles |
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