Effective medium theory for REELS analysis of amorphous carbon films
We use effective medium theory (EMT) as a framework to describe reflection electron energy loss spectra (REELS) from polycrystalline graphite and amorphous carbon (a‐C), the latter obtained by ion irradiation of the former. Such materials, isotropic at a macroscopic scale, are anisotropic at the mic...
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| Veröffentlicht in: | Surface and interface analysis 2010-06, Vol.42 (6-7), p.1066-1071 |
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| container_title | Surface and interface analysis |
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| creator | Calliari, L. Fanchenko, S. Filippi, M. |
| description | We use effective medium theory (EMT) as a framework to describe reflection electron energy loss spectra (REELS) from polycrystalline graphite and amorphous carbon (a‐C), the latter obtained by ion irradiation of the former. Such materials, isotropic at a macroscopic scale, are anisotropic at the micro‐ or nano‐scale. For them, we prove the value of the concept of effective isotropic energy loss function to describe EELS in the plasmon region. Based on this function, we calculate a differential inverse inelastic mean free path (DIIMFP) which, compared to experimental spectra from pristine and ion‐irradiated polycrystalline graphite, is able to reproduce their main features. Copyright © 2010 John Wiley & Sons, Ltd. |
| doi_str_mv | 10.1002/sia.3232 |
| format | Article |
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Such materials, isotropic at a macroscopic scale, are anisotropic at the micro‐ or nano‐scale. For them, we prove the value of the concept of effective isotropic energy loss function to describe EELS in the plasmon region. Based on this function, we calculate a differential inverse inelastic mean free path (DIIMFP) which, compared to experimental spectra from pristine and ion‐irradiated polycrystalline graphite, is able to reproduce their main features. 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Interface Anal</addtitle><description>We use effective medium theory (EMT) as a framework to describe reflection electron energy loss spectra (REELS) from polycrystalline graphite and amorphous carbon (a‐C), the latter obtained by ion irradiation of the former. Such materials, isotropic at a macroscopic scale, are anisotropic at the micro‐ or nano‐scale. For them, we prove the value of the concept of effective isotropic energy loss function to describe EELS in the plasmon region. Based on this function, we calculate a differential inverse inelastic mean free path (DIIMFP) which, compared to experimental spectra from pristine and ion‐irradiated polycrystalline graphite, is able to reproduce their main features. Copyright © 2010 John Wiley & Sons, Ltd.</description><subject>amorphous carbon</subject><subject>anisotropic materials</subject><subject>Carbon</subject><subject>EELS</subject><subject>Effective medium theory</subject><subject>Graphite</subject><subject>Mean free path</subject><subject>Nanocomposites</subject><subject>Nanostructure</subject><subject>plasmon</subject><subject>Reels</subject><subject>Spectra</subject><issn>0142-2421</issn><issn>1096-9918</issn><issn>1096-9918</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp10M1LwzAYx_EgCs4p-Cfk6KUzL21ejmPWbTAUtqHiJaRtwqLtMpNO7X_vxkTx4Om5fHj48QXgEqMBRohcR6cHlFByBHoYSZZIicUx6CGckoSkBJ-CsxhfEEKCCtYDN7m1pmzdu4GNqdy2ge3K-NBB6wOc5_lsAfVa1110EXoLdePDZuW3EZY6FH4NraubeA5OrK6jufi-fbC8zZejSTK7H09Hw1lSUspIIqnUvCiMoDrLCimqKqssY0RIzERWmSK1GUGcptyUXBqmKS8RtryQpdYE0z64OrzdBP-2NbFVjYulqWu9NrtJCjOOCRWcoV9aBh9jMFZtgmt06BRGat9J7TqpfacdTQ70w9Wm-9epxXT417vYms8fr8OrYpzyTD3ejdWEzPGzeHhSc_oFaXd3rQ</recordid><startdate>201006</startdate><enddate>201006</enddate><creator>Calliari, L.</creator><creator>Fanchenko, S.</creator><creator>Filippi, M.</creator><general>John Wiley & Sons, Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>201006</creationdate><title>Effective medium theory for REELS analysis of amorphous carbon films</title><author>Calliari, L. ; Fanchenko, S. ; Filippi, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3362-939a7bbe83a55b98dd5df662891685deb4f5207347ec79e6a37c01f7b9caa213</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>amorphous carbon</topic><topic>anisotropic materials</topic><topic>Carbon</topic><topic>EELS</topic><topic>Effective medium theory</topic><topic>Graphite</topic><topic>Mean free path</topic><topic>Nanocomposites</topic><topic>Nanostructure</topic><topic>plasmon</topic><topic>Reels</topic><topic>Spectra</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Calliari, L.</creatorcontrib><creatorcontrib>Fanchenko, S.</creatorcontrib><creatorcontrib>Filippi, M.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Surface and interface analysis</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Calliari, L.</au><au>Fanchenko, S.</au><au>Filippi, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effective medium theory for REELS analysis of amorphous carbon films</atitle><jtitle>Surface and interface analysis</jtitle><addtitle>Surf. 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| ispartof | Surface and interface analysis, 2010-06, Vol.42 (6-7), p.1066-1071 |
| issn | 0142-2421 1096-9918 1096-9918 |
| language | eng |
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| source | Wiley Online Library - AutoHoldings Journals |
| subjects | amorphous carbon anisotropic materials Carbon EELS Effective medium theory Graphite Mean free path Nanocomposites Nanostructure plasmon Reels Spectra |
| title | Effective medium theory for REELS analysis of amorphous carbon films |
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