Magnetic behavior of Co clusters embedded in a zeolite matrix
A medium pore zeolitic material with MFI structure modified with Co cations was synthesized. The magnetization M and magnetic susceptibility χ were measured as a function of T after ZFC and as a function of the applied magnetic field for T between 4.2 and 30 K. No blocking temperature was detected a...
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| Veröffentlicht in: | Physica. B, Condensed matter Condensed matter, 2004-12, Vol.354 (1), p.137-140 |
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| container_title | Physica. B, Condensed matter |
| container_volume | 354 |
| creator | Bertorello, H.R. Pierella, L.B. Bercoff, P.G. Saux, C. Sinnecker, J.P. |
| description | A medium pore zeolitic material with MFI structure modified with Co cations was synthesized. The magnetization
M and magnetic susceptibility
χ
were measured as a function of
T after ZFC and as a function of the applied magnetic field for
T between
4.2
and 30
K. No blocking temperature was detected and a pure superparamagnetic behavior was obtained.
M vs.
T and
χ
vs.
T were adjusted by Brillouin and Langevin functions obtaining the same results in both cases. Curve fitting gave an effective moment of
∼
90
μ
B
for the cases under study. The results are analyzed in terms of the possible cluster structure that may appear. |
| doi_str_mv | 10.1016/j.physb.2004.09.066 |
| format | Article |
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M and magnetic susceptibility
χ
were measured as a function of
T after ZFC and as a function of the applied magnetic field for
T between
4.2
and 30
K. No blocking temperature was detected and a pure superparamagnetic behavior was obtained.
M vs.
T and
χ
vs.
T were adjusted by Brillouin and Langevin functions obtaining the same results in both cases. Curve fitting gave an effective moment of
∼
90
μ
B
for the cases under study. The results are analyzed in terms of the possible cluster structure that may appear.</description><identifier>ISSN: 0921-4526</identifier><identifier>DOI: 10.1016/j.physb.2004.09.066</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Diamagnetism, paramagnetism and superparamagnetism ; Exact sciences and technology ; Magnetic clusters ; Magnetic properties and materials ; Physics ; Superparamagnetism ; Zeolites</subject><ispartof>Physica. B, Condensed matter, 2004-12, Vol.354 (1), p.137-140</ispartof><rights>2004 Elsevier B.V.</rights><rights>2005 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c364t-34f37462691639d67751692bbf53a19ba3d754d6dad535ecf5ba4c1993e42fa83</citedby><cites>FETCH-LOGICAL-c364t-34f37462691639d67751692bbf53a19ba3d754d6dad535ecf5ba4c1993e42fa83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0921452604009299$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,3537,23909,23910,25118,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16355848$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Bertorello, H.R.</creatorcontrib><creatorcontrib>Pierella, L.B.</creatorcontrib><creatorcontrib>Bercoff, P.G.</creatorcontrib><creatorcontrib>Saux, C.</creatorcontrib><creatorcontrib>Sinnecker, J.P.</creatorcontrib><title>Magnetic behavior of Co clusters embedded in a zeolite matrix</title><title>Physica. B, Condensed matter</title><description>A medium pore zeolitic material with MFI structure modified with Co cations was synthesized. The magnetization
M and magnetic susceptibility
χ
were measured as a function of
T after ZFC and as a function of the applied magnetic field for
T between
4.2
and 30
K. No blocking temperature was detected and a pure superparamagnetic behavior was obtained.
M vs.
T and
χ
vs.
T were adjusted by Brillouin and Langevin functions obtaining the same results in both cases. Curve fitting gave an effective moment of
∼
90
μ
B
for the cases under study. The results are analyzed in terms of the possible cluster structure that may appear.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Diamagnetism, paramagnetism and superparamagnetism</subject><subject>Exact sciences and technology</subject><subject>Magnetic clusters</subject><subject>Magnetic properties and materials</subject><subject>Physics</subject><subject>Superparamagnetism</subject><subject>Zeolites</subject><issn>0921-4526</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNp9kDtPwzAUhTOARCn8AhYvsCXY8SPx0AFVvKQiFpgtx76mrpK42GlF-fWktBIbd7nLOefe82XZFcEFwUTcror1cpeaosSYFVgWWIiTbIJlSXLGS3GWnae0wuOQikyy2Yv-6GHwBjWw1FsfIgoOzQMy7SYNEBOCrgFrwSLfI42-IbR-ANTpIfqvi-zU6TbB5XFPs_eH-7f5U754fXye3y1yQwUbcsocrZgohSSCSiuqihMhy6ZxnGoiG01txZkVVltOORjHG80MkZICK52u6TS7OeSuY_jcQBpU55OBttU9hE1SpSxrXlfVKKQHoYkhpQhOraPvdNwpgtUej1qpXzxqj0dhqUY8o-v6GK-T0a2Lujc-_VkF5bxm-zdmBx2MXbceokrGQ2_A-ghmUDb4f-_8AOJXfWI</recordid><startdate>20041231</startdate><enddate>20041231</enddate><creator>Bertorello, H.R.</creator><creator>Pierella, L.B.</creator><creator>Bercoff, P.G.</creator><creator>Saux, C.</creator><creator>Sinnecker, J.P.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20041231</creationdate><title>Magnetic behavior of Co clusters embedded in a zeolite matrix</title><author>Bertorello, H.R. ; Pierella, L.B. ; Bercoff, P.G. ; Saux, C. ; Sinnecker, J.P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c364t-34f37462691639d67751692bbf53a19ba3d754d6dad535ecf5ba4c1993e42fa83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Diamagnetism, paramagnetism and superparamagnetism</topic><topic>Exact sciences and technology</topic><topic>Magnetic clusters</topic><topic>Magnetic properties and materials</topic><topic>Physics</topic><topic>Superparamagnetism</topic><topic>Zeolites</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bertorello, H.R.</creatorcontrib><creatorcontrib>Pierella, L.B.</creatorcontrib><creatorcontrib>Bercoff, P.G.</creatorcontrib><creatorcontrib>Saux, C.</creatorcontrib><creatorcontrib>Sinnecker, J.P.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physica. B, Condensed matter</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bertorello, H.R.</au><au>Pierella, L.B.</au><au>Bercoff, P.G.</au><au>Saux, C.</au><au>Sinnecker, J.P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic behavior of Co clusters embedded in a zeolite matrix</atitle><jtitle>Physica. B, Condensed matter</jtitle><date>2004-12-31</date><risdate>2004</risdate><volume>354</volume><issue>1</issue><spage>137</spage><epage>140</epage><pages>137-140</pages><issn>0921-4526</issn><abstract>A medium pore zeolitic material with MFI structure modified with Co cations was synthesized. The magnetization
M and magnetic susceptibility
χ
were measured as a function of
T after ZFC and as a function of the applied magnetic field for
T between
4.2
and 30
K. No blocking temperature was detected and a pure superparamagnetic behavior was obtained.
M vs.
T and
χ
vs.
T were adjusted by Brillouin and Langevin functions obtaining the same results in both cases. Curve fitting gave an effective moment of
∼
90
μ
B
for the cases under study. The results are analyzed in terms of the possible cluster structure that may appear.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.physb.2004.09.066</doi><tpages>4</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Diamagnetism, paramagnetism and superparamagnetism Exact sciences and technology Magnetic clusters Magnetic properties and materials Physics Superparamagnetism Zeolites |
| title | Magnetic behavior of Co clusters embedded in a zeolite matrix |
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