X-ray magnetic dichroism and tunnel magneto-resistance study of the magnetic phase in epitaxial CrVO x nanoclusters
Epitaxial clusters of chromium and chromium-vanadium oxides are studied by tunnel magneto-resistivity measurements, x-ray absorption spectrometry and circular magnetic circular dichroism. They turn out to carry a small magnetic moment that follows a super-paramagnetic behavior. The chromium ion cont...
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| Veröffentlicht in: | Journal of physics. Condensed matter 2022-04, Vol.34 (17), p.175801 |
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| container_issue | 17 |
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| container_title | Journal of physics. Condensed matter |
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| creator | Joly, Loïc Scheurer, Fabrice Ohresser, Philippe Kengni-Zanguim, Brice Dayen, Jean-François Seneor, Pierre Dlubak, Bruno Godel, Florian Halley, David |
| description | Epitaxial clusters of chromium and chromium-vanadium oxides are studied by tunnel magneto-resistivity measurements, x-ray absorption spectrometry and circular magnetic circular dichroism. They turn out to carry a small magnetic moment that follows a super-paramagnetic behavior. The chromium ion contribution to this magnetization is mainly due to an original magnetic Cr
O
-like phase, whereas usual Cr
O
is known to be anti-ferromagnetic in the bulk. For mixed clusters, vanadium ions also contribute to the total magnetization and they are coupled to the chromium ion spins. By measuring the dichroic signal at different temperatures, we get insight into the possible spin configurations of vanadium and chromium ions: we propose that the magnetic dipoles observed in the clusters assembly could be related to ionic spins that couple at a very short range, as for instance in short one-dimensional spins chains. |
| doi_str_mv | 10.1088/1361-648X/ac4f5e |
| format | Article |
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O
-like phase, whereas usual Cr
O
is known to be anti-ferromagnetic in the bulk. For mixed clusters, vanadium ions also contribute to the total magnetization and they are coupled to the chromium ion spins. By measuring the dichroic signal at different temperatures, we get insight into the possible spin configurations of vanadium and chromium ions: we propose that the magnetic dipoles observed in the clusters assembly could be related to ionic spins that couple at a very short range, as for instance in short one-dimensional spins chains.</description><identifier>ISSN: 0953-8984</identifier><identifier>EISSN: 1361-648X</identifier><identifier>DOI: 10.1088/1361-648X/ac4f5e</identifier><identifier>PMID: 35084366</identifier><identifier>CODEN: JCOMEL</identifier><language>eng</language><publisher>England: IOP Publishing</publisher><subject>chromium oxide ; ferrimagnetism ; spin canting ; tunnel magnetoresistance ; vanadium oxide ; XAS ; XMCD</subject><ispartof>Journal of physics. Condensed matter, 2022-04, Vol.34 (17), p.175801</ispartof><rights>2022 IOP Publishing Ltd</rights><rights>2022 IOP Publishing Ltd.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c260t-a111ed37f2f549c45e6189765f033957255383df27331d04496f84f6b261f7a03</cites><orcidid>0000-0003-1741-2741 ; 0000-0003-2947-3998 ; 0000-0001-5696-8991</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/1361-648X/ac4f5e/pdf$$EPDF$$P50$$Giop$$H</linktopdf><link.rule.ids>314,780,784,27924,27925,53846,53893</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35084366$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Joly, Loïc</creatorcontrib><creatorcontrib>Scheurer, Fabrice</creatorcontrib><creatorcontrib>Ohresser, Philippe</creatorcontrib><creatorcontrib>Kengni-Zanguim, Brice</creatorcontrib><creatorcontrib>Dayen, Jean-François</creatorcontrib><creatorcontrib>Seneor, Pierre</creatorcontrib><creatorcontrib>Dlubak, Bruno</creatorcontrib><creatorcontrib>Godel, Florian</creatorcontrib><creatorcontrib>Halley, David</creatorcontrib><title>X-ray magnetic dichroism and tunnel magneto-resistance study of the magnetic phase in epitaxial CrVO x nanoclusters</title><title>Journal of physics. Condensed matter</title><addtitle>JPhysCM</addtitle><addtitle>J. Phys.: Condens. Matter</addtitle><description>Epitaxial clusters of chromium and chromium-vanadium oxides are studied by tunnel magneto-resistivity measurements, x-ray absorption spectrometry and circular magnetic circular dichroism. They turn out to carry a small magnetic moment that follows a super-paramagnetic behavior. The chromium ion contribution to this magnetization is mainly due to an original magnetic Cr
O
-like phase, whereas usual Cr
O
is known to be anti-ferromagnetic in the bulk. For mixed clusters, vanadium ions also contribute to the total magnetization and they are coupled to the chromium ion spins. By measuring the dichroic signal at different temperatures, we get insight into the possible spin configurations of vanadium and chromium ions: we propose that the magnetic dipoles observed in the clusters assembly could be related to ionic spins that couple at a very short range, as for instance in short one-dimensional spins chains.</description><subject>chromium oxide</subject><subject>ferrimagnetism</subject><subject>spin canting</subject><subject>tunnel magnetoresistance</subject><subject>vanadium oxide</subject><subject>XAS</subject><subject>XMCD</subject><issn>0953-8984</issn><issn>1361-648X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kMtLAzEQh4MotlbvniQ3L65NNo_NHqX4gkIvKr2FNA-b0s0uyS60_71btupFhIGBmd83MB8A1xjdYyTEFBOOM07Fcqo0dcyegPHP6BSMUclIJkpBR-AipQ1CiApCz8GIMCQo4XwM0jKLag8r9Rls6zU0Xq9j7VMFVTCw7UKw2-O2zqJNPrUqaAtT25k9rB1s1_aXbtYqWegDtI1v1c6rLZzFjwXcwaBCrbddam1Ml-DMqW2yV8c-Ae9Pj2-zl2y-eH6dPcwznXPUZgpjbA0pXO4YLTVllmNRFpw5REjJipwxIohxeUEINojSkjtBHV_lHLtCITIBaLirY51StE420Vcq7iVG8uBPHmTJgyw5-OuRmwFpulVlzQ_wLawP3A0BXzdyU3cx9B_8d-_2j7iuJKESF30xgbBsjCNfv-WIIg</recordid><startdate>20220427</startdate><enddate>20220427</enddate><creator>Joly, Loïc</creator><creator>Scheurer, Fabrice</creator><creator>Ohresser, Philippe</creator><creator>Kengni-Zanguim, Brice</creator><creator>Dayen, Jean-François</creator><creator>Seneor, Pierre</creator><creator>Dlubak, Bruno</creator><creator>Godel, Florian</creator><creator>Halley, David</creator><general>IOP Publishing</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0003-1741-2741</orcidid><orcidid>https://orcid.org/0000-0003-2947-3998</orcidid><orcidid>https://orcid.org/0000-0001-5696-8991</orcidid></search><sort><creationdate>20220427</creationdate><title>X-ray magnetic dichroism and tunnel magneto-resistance study of the magnetic phase in epitaxial CrVO x nanoclusters</title><author>Joly, Loïc ; Scheurer, Fabrice ; Ohresser, Philippe ; Kengni-Zanguim, Brice ; Dayen, Jean-François ; Seneor, Pierre ; Dlubak, Bruno ; Godel, Florian ; Halley, David</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c260t-a111ed37f2f549c45e6189765f033957255383df27331d04496f84f6b261f7a03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>chromium oxide</topic><topic>ferrimagnetism</topic><topic>spin canting</topic><topic>tunnel magnetoresistance</topic><topic>vanadium oxide</topic><topic>XAS</topic><topic>XMCD</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Joly, Loïc</creatorcontrib><creatorcontrib>Scheurer, Fabrice</creatorcontrib><creatorcontrib>Ohresser, Philippe</creatorcontrib><creatorcontrib>Kengni-Zanguim, Brice</creatorcontrib><creatorcontrib>Dayen, Jean-François</creatorcontrib><creatorcontrib>Seneor, Pierre</creatorcontrib><creatorcontrib>Dlubak, Bruno</creatorcontrib><creatorcontrib>Godel, Florian</creatorcontrib><creatorcontrib>Halley, David</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><jtitle>Journal of physics. Condensed matter</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Joly, Loïc</au><au>Scheurer, Fabrice</au><au>Ohresser, Philippe</au><au>Kengni-Zanguim, Brice</au><au>Dayen, Jean-François</au><au>Seneor, Pierre</au><au>Dlubak, Bruno</au><au>Godel, Florian</au><au>Halley, David</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>X-ray magnetic dichroism and tunnel magneto-resistance study of the magnetic phase in epitaxial CrVO x nanoclusters</atitle><jtitle>Journal of physics. Condensed matter</jtitle><stitle>JPhysCM</stitle><addtitle>J. Phys.: Condens. Matter</addtitle><date>2022-04-27</date><risdate>2022</risdate><volume>34</volume><issue>17</issue><spage>175801</spage><pages>175801-</pages><issn>0953-8984</issn><eissn>1361-648X</eissn><coden>JCOMEL</coden><abstract>Epitaxial clusters of chromium and chromium-vanadium oxides are studied by tunnel magneto-resistivity measurements, x-ray absorption spectrometry and circular magnetic circular dichroism. They turn out to carry a small magnetic moment that follows a super-paramagnetic behavior. The chromium ion contribution to this magnetization is mainly due to an original magnetic Cr
O
-like phase, whereas usual Cr
O
is known to be anti-ferromagnetic in the bulk. For mixed clusters, vanadium ions also contribute to the total magnetization and they are coupled to the chromium ion spins. By measuring the dichroic signal at different temperatures, we get insight into the possible spin configurations of vanadium and chromium ions: we propose that the magnetic dipoles observed in the clusters assembly could be related to ionic spins that couple at a very short range, as for instance in short one-dimensional spins chains.</abstract><cop>England</cop><pub>IOP Publishing</pub><pmid>35084366</pmid><doi>10.1088/1361-648X/ac4f5e</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-1741-2741</orcidid><orcidid>https://orcid.org/0000-0003-2947-3998</orcidid><orcidid>https://orcid.org/0000-0001-5696-8991</orcidid><oa>free_for_read</oa></addata></record> |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | chromium oxide ferrimagnetism spin canting tunnel magnetoresistance vanadium oxide XAS XMCD |
| title | X-ray magnetic dichroism and tunnel magneto-resistance study of the magnetic phase in epitaxial CrVO x nanoclusters |
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