Magnetic properties of the lanthanoid nickel arsenides and phosphides LnNi4X2 with ZrFe4Si2-type structure
Identifieur interne : 000B74 ( Istex/Corpus ); précédent : 000B73; suivant : 000B75Magnetic properties of the lanthanoid nickel arsenides and phosphides LnNi4X2 with ZrFe4Si2-type structure
Auteurs : S. Députier ; O. Pe A ; T. Le Bihan ; J. Y. Pivan ; R. GuérinSource :
- Physica B: Physics of Condensed Matter [ 0921-4526 ] ; 1997.
Abstract
The ternary compounds LnNi4As2 (Ln: Tb → Yb; Y) and LnNi4P2 (Ln:Er, Yb; Y) have been prepared; they crystallize in the tetragonal ZrFe4Si2-type structure. Their magnetic properties have been studied with a SQUID magnetometer between 2 and 300 K. YNi4As2 shows a temperature-independent Pauli paramagnetism attributed to a non-magnetic contribution of the “Ni4As2” sublattice, while all the other LnNi4As2 compounds, except YbNi4As2, present a Curie-Weiss behavior above 30 K. The experimental paramagnetic moments are close to those expected for Ln3+ -free ions. At low temperature, only two compounds exhibit a magnetic ordering: TbNi4As2 behaves as a metamagnetic or spin-canted system, while DyNi4As2 is a weak ferromagnet. At last, YbNi4As2 shows a temperature-independent paramagnetism suggesting that ytterbium is in a non-magnetic divalent state. For the phosphides LnNi4P2 (Ln: Er, Yb, Y), a non-magnetic contribution of the “Ni4P2” sublattice is found, as shown by the study of YNi4P2. ErNi4P2 exhibits a Curie-Weiss paramagnetism in the whole temperature range as well as YbNi4P2 for T > 20 K. This last result shows that contrary to YbNi4As2, the corresponding phosphide exhibits a trivalent state for ytterbium.
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DOI: 10.1016/S0921-4526(97)00004-5
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Le Bihan</name><affiliation><mods:affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Pivan, J Y" sort="Pivan, J Y" uniqKey="Pivan J" first="J. Y." last="Pivan">J. Y. Pivan</name><affiliation><mods:affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Guerin, R" sort="Guerin, R" uniqKey="Guerin R" first="R." last="Guérin">R. Guérin</name><affiliation><mods:affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:D3D8F6D6545AA00F5382807ABD0E892659A40E6F</idno><date when="1997" year="1997">1997</date><idno type="doi">10.1016/S0921-4526(97)00004-5</idno><idno type="url">https://api.istex.fr/document/D3D8F6D6545AA00F5382807ABD0E892659A40E6F/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000B74</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000B74</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Magnetic properties of the lanthanoid nickel arsenides and phosphides LnNi4X2 with ZrFe4Si2-type structure</title><author><name sortKey="Deputier, S" sort="Deputier, S" uniqKey="Deputier S" first="S." last="Députier">S. Députier</name><affiliation><mods:affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Pe A, O" sort="Pe A, O" uniqKey="Pe A O" first="O." last="Pe A">O. Pe A</name><affiliation><mods:affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Le Bihan, T" sort="Le Bihan, T" uniqKey="Le Bihan T" first="T." last="Le Bihan">T. Le Bihan</name><affiliation><mods:affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Pivan, J Y" sort="Pivan, J Y" uniqKey="Pivan J" first="J. Y." last="Pivan">J. Y. Pivan</name><affiliation><mods:affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</mods:affiliation></affiliation></author><author><name sortKey="Guerin, R" sort="Guerin, R" uniqKey="Guerin R" first="R." last="Guérin">R. Guérin</name><affiliation><mods:affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Physica B: Physics of Condensed Matter</title><title level="j" type="abbrev">PHYSB</title><idno type="ISSN">0921-4526</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1997">1997</date><biblScope unit="volume">233</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="26">26</biblScope><biblScope unit="page" to="36">36</biblScope></imprint><idno type="ISSN">0921-4526</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0921-4526</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The ternary compounds LnNi4As2 (Ln: Tb → Yb; Y) and LnNi4P2 (Ln:Er, Yb; Y) have been prepared; they crystallize in the tetragonal ZrFe4Si2-type structure. Their magnetic properties have been studied with a SQUID magnetometer between 2 and 300 K. YNi4As2 shows a temperature-independent Pauli paramagnetism attributed to a non-magnetic contribution of the “Ni4As2” sublattice, while all the other LnNi4As2 compounds, except YbNi4As2, present a Curie-Weiss behavior above 30 K. The experimental paramagnetic moments are close to those expected for Ln3+ -free ions. At low temperature, only two compounds exhibit a magnetic ordering: TbNi4As2 behaves as a metamagnetic or spin-canted system, while DyNi4As2 is a weak ferromagnet. At last, YbNi4As2 shows a temperature-independent paramagnetism suggesting that ytterbium is in a non-magnetic divalent state. For the phosphides LnNi4P2 (Ln: Er, Yb, Y), a non-magnetic contribution of the “Ni4P2” sublattice is found, as shown by the study of YNi4P2. ErNi4P2 exhibits a Curie-Weiss paramagnetism in the whole temperature range as well as YbNi4P2 for T > 20 K. This last result shows that contrary to YbNi4As2, the corresponding phosphide exhibits a trivalent state for ytterbium.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>S. Députier</name><affiliations><json:string>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</json:string></affiliations></json:item><json:item><name>O. Peña</name><affiliations><json:string>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</json:string></affiliations></json:item><json:item><name>T. Le Bihan</name><affiliations><json:string>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</json:string></affiliations></json:item><json:item><name>J.Y. Pivan</name><affiliations><json:string>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</json:string></affiliations></json:item><json:item><name>R. Guérin</name><affiliations><json:string>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Magnetic properties</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>ZrFe4Si2-type structure</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Rare-earth nickel arsenides and phosphides</value></json:item></subject><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>The ternary compounds LnNi4As2 (Ln: Tb → Yb; Y) and LnNi4P2 (Ln:Er, Yb; Y) have been prepared; they crystallize in the tetragonal ZrFe4Si2-type structure. Their magnetic properties have been studied with a SQUID magnetometer between 2 and 300 K. YNi4As2 shows a temperature-independent Pauli paramagnetism attributed to a non-magnetic contribution of the “Ni4As2” sublattice, while all the other LnNi4As2 compounds, except YbNi4As2, present a Curie-Weiss behavior above 30 K. The experimental paramagnetic moments are close to those expected for Ln3+ -free ions. At low temperature, only two compounds exhibit a magnetic ordering: TbNi4As2 behaves as a metamagnetic or spin-canted system, while DyNi4As2 is a weak ferromagnet. At last, YbNi4As2 shows a temperature-independent paramagnetism suggesting that ytterbium is in a non-magnetic divalent state. For the phosphides LnNi4P2 (Ln: Er, Yb, Y), a non-magnetic contribution of the “Ni4P2” sublattice is found, as shown by the study of YNi4P2. ErNi4P2 exhibits a Curie-Weiss paramagnetism in the whole temperature range as well as YbNi4P2 for T > 20 K. This last result shows that contrary to YbNi4As2, the corresponding phosphide exhibits a trivalent state for ytterbium.</abstract><qualityIndicators><score>5.731</score><pdfVersion>1.2</pdfVersion><pdfPageSize>576 x 792 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>3</keywordCount><abstractCharCount>1223</abstractCharCount><pdfWordCount>3547</pdfWordCount><pdfCharCount>20597</pdfCharCount><pdfPageCount>11</pdfPageCount><abstractWordCount>182</abstractWordCount></qualityIndicators><title>Magnetic properties of the lanthanoid nickel arsenides and phosphides LnNi4X2 with ZrFe4Si2-type 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France</affiliation></author><author xml:id="author-0002"><persName><forename type="first">T.</forename><surname>Le Bihan</surname></persName><affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</affiliation></author><author xml:id="author-0003"><persName><forename type="first">J.Y.</forename><surname>Pivan</surname></persName><note type="biography">Permanent address: LCEE, ENSCR, Avenue du Général Leclerc, F-35042 Rennes Cedex, France</note><affiliation>Permanent address: LCEE, ENSCR, Avenue du Général Leclerc, F-35042 Rennes Cedex, France</affiliation><affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</affiliation></author><author xml:id="author-0004"><persName><forename type="first">R.</forename><surname>Guérin</surname></persName><affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</affiliation></author><idno type="istex">D3D8F6D6545AA00F5382807ABD0E892659A40E6F</idno><idno type="DOI">10.1016/S0921-4526(97)00004-5</idno><idno type="PII">S0921-4526(97)00004-5</idno></analytic><monogr><title level="j">Physica B: Physics of Condensed Matter</title><title level="j" type="abbrev">PHYSB</title><idno type="pISSN">0921-4526</idno><idno type="PII">S0921-4526(00)X0038-5</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1997"></date><biblScope unit="volume">233</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="26">26</biblScope><biblScope unit="page" to="36">36</biblScope></imprint></monogr></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1997</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>The ternary compounds LnNi4As2 (Ln: Tb → Yb; Y) and LnNi4P2 (Ln:Er, Yb; Y) have been prepared; they crystallize in the tetragonal ZrFe4Si2-type structure. Their magnetic properties have been studied with a SQUID magnetometer between 2 and 300 K. YNi4As2 shows a temperature-independent Pauli paramagnetism attributed to a non-magnetic contribution of the “Ni4As2” sublattice, while all the other LnNi4As2 compounds, except YbNi4As2, present a Curie-Weiss behavior above 30 K. The experimental paramagnetic moments are close to those expected for Ln3+ -free ions. At low temperature, only two compounds exhibit a magnetic ordering: TbNi4As2 behaves as a metamagnetic or spin-canted system, while DyNi4As2 is a weak ferromagnet. At last, YbNi4As2 shows a temperature-independent paramagnetism suggesting that ytterbium is in a non-magnetic divalent state. For the phosphides LnNi4P2 (Ln: Er, Yb, Y), a non-magnetic contribution of the “Ni4P2” sublattice is found, as shown by the study of YNi4P2. ErNi4P2 exhibits a Curie-Weiss paramagnetism in the whole temperature range as well as YbNi4P2 for T > 20 K. This last result shows that contrary to YbNi4As2, the corresponding phosphide exhibits a trivalent state for ytterbium.</p></abstract><textClass><keywords scheme="keyword"><list><head>Keywords</head><item><term>Magnetic properties</term></item><item><term>ZrFe4Si2-type structure</term></item><item><term>Rare-earth nickel arsenides and phosphides</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1997">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/D3D8F6D6545AA00F5382807ABD0E892659A40E6F/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla"><item-info><jid>PHYSB</jid><aid>97000045</aid><ce:pii>S0921-4526(97)00004-5</ce:pii><ce:doi>10.1016/S0921-4526(97)00004-5</ce:doi><ce:copyright type="unknown" year="1997"></ce:copyright></item-info><head><ce:title>Magnetic properties of the lanthanoid nickel arsenides and phosphides LnNi<ce:inf>4</ce:inf>X<ce:inf>2</ce:inf> with ZrFe<ce:inf>4</ce:inf>Si<ce:inf>2</ce:inf>-type structure</ce:title><ce:author-group><ce:author><ce:given-name>S.</ce:given-name><ce:surname>Députier</ce:surname><ce:cross-ref refid="COR1"><ce:sup>∗</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>O.</ce:given-name><ce:surname>Peña</ce:surname></ce:author><ce:author><ce:given-name>T.</ce:given-name><ce:surname>Le Bihan</ce:surname></ce:author><ce:author><ce:given-name>J.Y.</ce:given-name><ce:surname>Pivan</ce:surname><ce:cross-ref refid="FN1"><ce:sup>1</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>R.</ce:given-name><ce:surname>Guérin</ce:surname></ce:author><ce:affiliation><ce:textfn>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</ce:textfn></ce:affiliation><ce:correspondence id="COR1"><ce:label>∗</ce:label><ce:text>Corresponding author.</ce:text></ce:correspondence><ce:footnote id="FN1"><ce:label>1</ce:label><ce:note-para>Permanent address: LCEE, ENSCR, Avenue du Général Leclerc, F-35042 Rennes Cedex, France</ce:note-para></ce:footnote></ce:author-group><ce:date-received day="18" month="10" year="1996"></ce:date-received><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>The ternary compounds LnNi<ce:inf>4</ce:inf>As<ce:inf>2</ce:inf> (Ln: Tb → Yb; Y) and LnNi<ce:inf>4</ce:inf>P<ce:inf>2</ce:inf> (Ln:Er, Yb; Y) have been prepared; they crystallize in the tetragonal ZrFe<ce:inf>4</ce:inf>Si<ce:inf>2</ce:inf>-type structure. Their magnetic properties have been studied with a SQUID magnetometer between 2 and 300 K. YNi<ce:inf>4</ce:inf>As<ce:inf>2</ce:inf> shows a temperature-independent Pauli paramagnetism attributed to a non-magnetic contribution of the “Ni<ce:inf>4</ce:inf>As<ce:inf>2</ce:inf>” sublattice, while all the other LnNi<ce:inf>4</ce:inf>As<ce:inf>2</ce:inf> compounds, except YbNi<ce:inf>4</ce:inf>As<ce:inf>2</ce:inf>, present a Curie-Weiss behavior above 30 K. The experimental paramagnetic moments are close to those expected for Ln<ce:sup>3+</ce:sup> -free ions. At low temperature, only two compounds exhibit a magnetic ordering: TbNi<ce:inf>4</ce:inf>As<ce:inf>2</ce:inf> behaves as a metamagnetic or spin-canted system, while DyNi<ce:inf>4</ce:inf>As<ce:inf>2</ce:inf> is a weak ferromagnet. At last, YbNi<ce:inf>4</ce:inf>As<ce:inf>2</ce:inf> shows a temperature-independent paramagnetism suggesting that ytterbium is in a non-magnetic divalent state.</ce:simple-para><ce:simple-para>For the phosphides LnNi<ce:inf>4</ce:inf>P<ce:inf>2</ce:inf> (Ln: Er, Yb, Y), a non-magnetic contribution of the “Ni<ce:inf>4</ce:inf>P<ce:inf>2</ce:inf>” sublattice is found, as shown by the study of YNi<ce:inf>4</ce:inf>P<ce:inf>2</ce:inf>. ErNi<ce:inf>4</ce:inf>P<ce:inf>2</ce:inf> exhibits a Curie-Weiss paramagnetism in the whole temperature range as well as YbNi<ce:inf>4</ce:inf>P<ce:inf>2</ce:inf> for <ce:italic>T</ce:italic> > 20 K. This last result shows that contrary to YbNi<ce:inf>4</ce:inf>As<ce:inf>2</ce:inf>, the corresponding phosphide exhibits a trivalent state for ytterbium.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:keywords><ce:section-title>Keywords</ce:section-title><ce:keyword><ce:text>Magnetic properties</ce:text></ce:keyword><ce:keyword><ce:text>ZrFe<ce:inf>4</ce:inf>Si<ce:inf>2</ce:inf>-type structure</ce:text></ce:keyword><ce:keyword><ce:text>Rare-earth nickel arsenides and phosphides</ce:text></ce:keyword></ce:keywords></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo><title>Magnetic properties of the lanthanoid nickel arsenides and phosphides LnNi4X2 with ZrFe4Si2-type structure</title></titleInfo><titleInfo type="alternative" contentType="CDATA"><title>Magnetic properties of the lanthanoid nickel arsenides and phosphides LnNi</title></titleInfo><name type="personal"><namePart type="given">S.</namePart><namePart type="family">Députier</namePart><affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</affiliation><description>Corresponding author.</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">O.</namePart><namePart type="family">Peña</namePart><affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">T.</namePart><namePart type="family">Le Bihan</namePart><affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">J.Y.</namePart><namePart type="family">Pivan</namePart><affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</affiliation><description>Permanent address: LCEE, ENSCR, Avenue du Général Leclerc, F-35042 Rennes Cedex, France</description><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">R.</namePart><namePart type="family">Guérin</namePart><affiliation>Laboratoire de Chimie du Solide et Inorganique Moléculaire, UMR CNRS 66511, Université de Rennes I, Avenue de Général Leclerc, F-35042 Rennes Cedex, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">1997</dateIssued><copyrightDate encoding="w3cdtf">1997</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">The ternary compounds LnNi4As2 (Ln: Tb → Yb; Y) and LnNi4P2 (Ln:Er, Yb; Y) have been prepared; they crystallize in the tetragonal ZrFe4Si2-type structure. Their magnetic properties have been studied with a SQUID magnetometer between 2 and 300 K. YNi4As2 shows a temperature-independent Pauli paramagnetism attributed to a non-magnetic contribution of the “Ni4As2” sublattice, while all the other LnNi4As2 compounds, except YbNi4As2, present a Curie-Weiss behavior above 30 K. The experimental paramagnetic moments are close to those expected for Ln3+ -free ions. At low temperature, only two compounds exhibit a magnetic ordering: TbNi4As2 behaves as a metamagnetic or spin-canted system, while DyNi4As2 is a weak ferromagnet. At last, YbNi4As2 shows a temperature-independent paramagnetism suggesting that ytterbium is in a non-magnetic divalent state. For the phosphides LnNi4P2 (Ln: Er, Yb, Y), a non-magnetic contribution of the “Ni4P2” sublattice is found, as shown by the study of YNi4P2. ErNi4P2 exhibits a Curie-Weiss paramagnetism in the whole temperature range as well as YbNi4P2 for T > 20 K. This last result shows that contrary to YbNi4As2, the corresponding phosphide exhibits a trivalent state for ytterbium.</abstract><subject><genre>Keywords</genre><topic>Magnetic properties</topic><topic>ZrFe4Si2-type structure</topic><topic>Rare-earth nickel arsenides and phosphides</topic></subject><relatedItem type="host"><titleInfo><title>Physica B: Physics of Condensed Matter</title></titleInfo><titleInfo type="abbreviated"><title>PHYSB</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">199704</dateIssued></originInfo><identifier type="ISSN">0921-4526</identifier><identifier type="PII">S0921-4526(00)X0038-5</identifier><part><date>199704</date><detail type="volume"><number>233</number><caption>vol.</caption></detail><detail type="issue"><number>1</number><caption>no.</caption></detail><extent unit="issue pages"><start>1</start><end>93</end></extent><extent unit="pages"><start>26</start><end>36</end></extent></part></relatedItem><identifier type="istex">D3D8F6D6545AA00F5382807ABD0E892659A40E6F</identifier><identifier type="DOI">10.1016/S0921-4526(97)00004-5</identifier><identifier type="PII">S0921-4526(97)00004-5</identifier><recordInfo><recordContentSource>ELSEVIER</recordContentSource></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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