Metropolis algorithm for simulating hysteresis in ferromagnetic nanoparticles
We report of Monte Carlo simulations by Metropolis algorithm of the magnetization cycles of ∼3 nm non-interacting ferromagnetic amorphous nanoparticles. Simulations based on a core-shell model, describing the nanoparticles as consisting of a ferromagnetically ordered core and a disordered surface sh...
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| Veröffentlicht in: | Physica. B, Condensed matter Condensed matter, 2006-02, Vol.372 (1), p.345-349 |
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| container_title | Physica. B, Condensed matter |
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| creator | De Biasi, E. Ramos, C.A. Zysler, R.D. Fiorani, D. |
| description | We report of Monte Carlo simulations by Metropolis algorithm of the magnetization cycles of ∼3
nm non-interacting ferromagnetic amorphous nanoparticles. Simulations based on a core-shell model, describing the nanoparticles as consisting of a ferromagnetically ordered core and a disordered surface shell, reproduce satisfactorily the significant features observed in experimental magnetization measurement and hysteresis cycles, i.e.
H
C
(
T
)
and
M
r
(
T
)
curves. The results provide a clear evidence of the major role played at low temperature by the surface anisotropy and surface–core exchange interaction in determining some anomalies of the hysteresis cycles and the large increase of the effective particle anisotropy at low temperature. |
| doi_str_mv | 10.1016/j.physb.2005.10.082 |
| format | Article |
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nm non-interacting ferromagnetic amorphous nanoparticles. Simulations based on a core-shell model, describing the nanoparticles as consisting of a ferromagnetically ordered core and a disordered surface shell, reproduce satisfactorily the significant features observed in experimental magnetization measurement and hysteresis cycles, i.e.
H
C
(
T
)
and
M
r
(
T
)
curves. The results provide a clear evidence of the major role played at low temperature by the surface anisotropy and surface–core exchange interaction in determining some anomalies of the hysteresis cycles and the large increase of the effective particle anisotropy at low temperature.</description><identifier>ISSN: 0921-4526</identifier><identifier>EISSN: 1873-2135</identifier><identifier>DOI: 10.1016/j.physb.2005.10.082</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Exact sciences and technology ; Ferromagnetic nanoparticles ; Magnetic properties and materials ; Magnetic properties of nanostructures ; Metropolis algorithm ; Monte Carlo simulation ; Physics ; Surface effects</subject><ispartof>Physica. B, Condensed matter, 2006-02, Vol.372 (1), p.345-349</ispartof><rights>2005 Elsevier B.V.</rights><rights>2006 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c364t-3692a54ee1e008fa0af6639a4002f8461b53d3e9c0945ed66317a517c54f03593</citedby><cites>FETCH-LOGICAL-c364t-3692a54ee1e008fa0af6639a4002f8461b53d3e9c0945ed66317a517c54f03593</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.physb.2005.10.082$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,778,782,787,788,3539,23917,23918,25127,27911,27912,45982</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=17507775$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>De Biasi, E.</creatorcontrib><creatorcontrib>Ramos, C.A.</creatorcontrib><creatorcontrib>Zysler, R.D.</creatorcontrib><creatorcontrib>Fiorani, D.</creatorcontrib><title>Metropolis algorithm for simulating hysteresis in ferromagnetic nanoparticles</title><title>Physica. B, Condensed matter</title><description>We report of Monte Carlo simulations by Metropolis algorithm of the magnetization cycles of ∼3
nm non-interacting ferromagnetic amorphous nanoparticles. Simulations based on a core-shell model, describing the nanoparticles as consisting of a ferromagnetically ordered core and a disordered surface shell, reproduce satisfactorily the significant features observed in experimental magnetization measurement and hysteresis cycles, i.e.
H
C
(
T
)
and
M
r
(
T
)
curves. The results provide a clear evidence of the major role played at low temperature by the surface anisotropy and surface–core exchange interaction in determining some anomalies of the hysteresis cycles and the large increase of the effective particle anisotropy at low temperature.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Exact sciences and technology</subject><subject>Ferromagnetic nanoparticles</subject><subject>Magnetic properties and materials</subject><subject>Magnetic properties of nanostructures</subject><subject>Metropolis algorithm</subject><subject>Monte Carlo simulation</subject><subject>Physics</subject><subject>Surface effects</subject><issn>0921-4526</issn><issn>1873-2135</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNp9UMtOwzAQtBBIlMcXcMkFbgnrOM7jwAFVvKRWXOBsuc66dZXEwXaR-vc4tBI39rKr2ZlZ7RByQyGjQMv7bTZu9n6V5QA8IhnU-QmZ0bpiaU4ZPyUzaHKaFjwvz8mF91uIRSs6I8slBmdH2xmfyG5tnQmbPtHWJd70u04GM6yT6B3QoY8cMyQanbO9XA8YjEoGOdhRujh26K_ImZadx-tjvySfz08f89d08f7yNn9cpIqVRUhZ2eSSF4gUAWotQeqyZI0sAHJdFyVdcdYybBQ0Bcc27mglOa0ULzQw3rBLcnfwHZ392qEPojdeYdfJAe3Oi7xhdQk1j0R2ICpnvXeoxehML91eUBBTdGIrfqMTU3QTGKOLqtujvfRKdtrJQRn_J604VFU1uT8ceBh__TbohFcGB4WtcaiCaK35984PmomGUw</recordid><startdate>20060201</startdate><enddate>20060201</enddate><creator>De Biasi, E.</creator><creator>Ramos, C.A.</creator><creator>Zysler, R.D.</creator><creator>Fiorani, D.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20060201</creationdate><title>Metropolis algorithm for simulating hysteresis in ferromagnetic nanoparticles</title><author>De Biasi, E. ; Ramos, C.A. ; Zysler, R.D. ; Fiorani, D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c364t-3692a54ee1e008fa0af6639a4002f8461b53d3e9c0945ed66317a517c54f03593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Exact sciences and technology</topic><topic>Ferromagnetic nanoparticles</topic><topic>Magnetic properties and materials</topic><topic>Magnetic properties of nanostructures</topic><topic>Metropolis algorithm</topic><topic>Monte Carlo simulation</topic><topic>Physics</topic><topic>Surface effects</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>De Biasi, E.</creatorcontrib><creatorcontrib>Ramos, C.A.</creatorcontrib><creatorcontrib>Zysler, R.D.</creatorcontrib><creatorcontrib>Fiorani, D.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology 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>De Biasi, E.</au><au>Ramos, C.A.</au><au>Zysler, R.D.</au><au>Fiorani, D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Metropolis algorithm for simulating hysteresis in ferromagnetic nanoparticles</atitle><jtitle>Physica. B, Condensed matter</jtitle><date>2006-02-01</date><risdate>2006</risdate><volume>372</volume><issue>1</issue><spage>345</spage><epage>349</epage><pages>345-349</pages><issn>0921-4526</issn><eissn>1873-2135</eissn><abstract>We report of Monte Carlo simulations by Metropolis algorithm of the magnetization cycles of ∼3
nm non-interacting ferromagnetic amorphous nanoparticles. Simulations based on a core-shell model, describing the nanoparticles as consisting of a ferromagnetically ordered core and a disordered surface shell, reproduce satisfactorily the significant features observed in experimental magnetization measurement and hysteresis cycles, i.e.
H
C
(
T
)
and
M
r
(
T
)
curves. The results provide a clear evidence of the major role played at low temperature by the surface anisotropy and surface–core exchange interaction in determining some anomalies of the hysteresis cycles and the large increase of the effective particle anisotropy at low temperature.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.physb.2005.10.082</doi><tpages>5</tpages></addata></record> |
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| issn | 0921-4526 1873-2135 |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Ferromagnetic nanoparticles Magnetic properties and materials Magnetic properties of nanostructures Metropolis algorithm Monte Carlo simulation Physics Surface effects |
| title | Metropolis algorithm for simulating hysteresis in ferromagnetic nanoparticles |
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