Magnetic and magnetocaloric properties of lanthanum manganites with monovalent elements doping at A-site
In this study, magnetic and magnetocaloric properties of La 0.8K 0.1M 0.1MnO 3 with M=Na and Ag compounds have been investigated. X-ray diffraction analysis using Rietveld refinement reveals that La 0.8K 0.1Na 0.1MnO 3 and La 0.8K 0.1Ag 0.1MnO 3 samples crystallize in the distorted rhombohedral syst...
Gespeichert in:
Veröffentlicht in: | Journal of magnetism and magnetic materials 2011, Vol.323 (2), p.252-257 |
---|---|
Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
Schlagworte: | |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 257 |
---|---|
container_issue | 2 |
container_start_page | 252 |
container_title | Journal of magnetism and magnetic materials |
container_volume | 323 |
creator | Koubaa, M. Regaieg, Y. Cheikhrouhou Koubaa, W. Cheikhrouhou, A. Ammar-Merah, S. Herbst, F. |
description | In this study, magnetic and magnetocaloric properties of La
0.8K
0.1M
0.1MnO
3 with M=Na and Ag compounds have been investigated. X-ray diffraction analysis using Rietveld refinement reveals that La
0.8K
0.1Na
0.1MnO
3 and La
0.8K
0.1Ag
0.1MnO
3 samples crystallize in the distorted rhombohedral system with R3¯c space group. The surface morphology and elemental analysis of both samples were carried out by scanning electron microscopy (SEM) and energy dispersive X-ray technique (EDAX), respectively. EDAX spectra taken from the surface of the synthesized powders show a nominal composition near the desired one for M=Na sample whereas some vacancies are present in the A-site in the case of Ag substitution as will be discussed in this paper. Magnetization measurements versus temperature in a magnetic applied field of 50
mT showed that our samples are ferromagnetic at low temperatures. Curie temperature
T
C
is found to be 330 and 310
K for M=Na and Ag, respectively. Arrott plots deduced from isothermal magnetization curves indicate that our samples exhibit a second order magnetic phase transition. From the measured magnetization data of La
0.8K
0.1M
0.1MnO
3 with M=Na and Ag samples as a function of magnetic applied field, the associated magnetic entropy change,
|
Δ
S
M
|
, close to their respective Curie temperature
T
C
and the relative cooling power RCP have been determined. The maximum magnetic entropy change,
|
Δ
S
M
M
a
x
|
, reaches 4.39 and 4.92
J/kg
K for M=Na and Ag, respectively, in a magnetic applied field change of 5
T. For both samples, the
|
Δ
S
M
|
values determined by the Maxwell theory agree well with those calculated by the Landau theory. |
doi_str_mv | 10.1016/j.jmmm.2010.09.020 |
format | Article |
fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_849444847</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0304885310006463</els_id><sourcerecordid>1753548239</sourcerecordid><originalsourceid>FETCH-LOGICAL-c395t-f475be764c886db036acb7b72e96e9a3ee5536874533fba80710ba4b35f8e1353</originalsourceid><addsrcrecordid>eNp9kLtOwzAUhjOABBRegMkLgiXBie3YkVgQ4iYVscBsOc5J6yq2i-0W8fa4FDEyHZ1f37noK4rzGlc1rtvrVbWy1lYNzgHuKtzgg-IYE0xLIRg5Kk5iXGGMayra42L5ohYOktFIuQHZn8ZrNfmQo3XwawjJQER-RJNyaancxmbMLZQzKeefJi2R9c5v1QQuIZjA5hrR4NfGLZBK6LaMGT0tDkc1RTj7rbPi_eH-7e6pnL8-Pt_dzktNOpbKkXLWA2-pFqIdekxapXve8wa6FjpFABgjreCUETL2SmBe417RnrBRQE0YmRWX-735-Y8NxCStiRqm_D34TZSCdpRSQXkmr_4la84Io6IhXUabPaqDjzHAKNfBWBW-ZI3lTrpcyZ10uZMucSez9Dx08btfxWx0DMppE_8mG0I47zjN3M2eg6xlayDIqA04DYMJoJMcvPnvzDd6vZs7</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1753548239</pqid></control><display><type>article</type><title>Magnetic and magnetocaloric properties of lanthanum manganites with monovalent elements doping at A-site</title><source>Access via ScienceDirect (Elsevier)</source><creator>Koubaa, M. ; Regaieg, Y. ; Cheikhrouhou Koubaa, W. ; Cheikhrouhou, A. ; Ammar-Merah, S. ; Herbst, F.</creator><creatorcontrib>Koubaa, M. ; Regaieg, Y. ; Cheikhrouhou Koubaa, W. ; Cheikhrouhou, A. ; Ammar-Merah, S. ; Herbst, F.</creatorcontrib><description>In this study, magnetic and magnetocaloric properties of La
0.8K
0.1M
0.1MnO
3 with M=Na and Ag compounds have been investigated. X-ray diffraction analysis using Rietveld refinement reveals that La
0.8K
0.1Na
0.1MnO
3 and La
0.8K
0.1Ag
0.1MnO
3 samples crystallize in the distorted rhombohedral system with R3¯c space group. The surface morphology and elemental analysis of both samples were carried out by scanning electron microscopy (SEM) and energy dispersive X-ray technique (EDAX), respectively. EDAX spectra taken from the surface of the synthesized powders show a nominal composition near the desired one for M=Na sample whereas some vacancies are present in the A-site in the case of Ag substitution as will be discussed in this paper. Magnetization measurements versus temperature in a magnetic applied field of 50
mT showed that our samples are ferromagnetic at low temperatures. Curie temperature
T
C
is found to be 330 and 310
K for M=Na and Ag, respectively. Arrott plots deduced from isothermal magnetization curves indicate that our samples exhibit a second order magnetic phase transition. From the measured magnetization data of La
0.8K
0.1M
0.1MnO
3 with M=Na and Ag samples as a function of magnetic applied field, the associated magnetic entropy change,
|
Δ
S
M
|
, close to their respective Curie temperature
T
C
and the relative cooling power RCP have been determined. The maximum magnetic entropy change,
|
Δ
S
M
M
a
x
|
, reaches 4.39 and 4.92
J/kg
K for M=Na and Ag, respectively, in a magnetic applied field change of 5
T. For both samples, the
|
Δ
S
M
|
values determined by the Maxwell theory agree well with those calculated by the Landau theory.</description><identifier>ISSN: 0304-8853</identifier><identifier>DOI: 10.1016/j.jmmm.2010.09.020</identifier><identifier>CODEN: JMMMDC</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Entropy ; Exact sciences and technology ; Ferromagnetism ; Isothermal magnetization ; Magnetic properties ; Magnetic properties and materials ; Magnetically ordered materials: other intrinsic properties ; Magnetization ; Magnetocaloric effect ; Magnetocaloric effect, magnetic cooling ; Magnetotransport phenomena, materials for magnetotransport ; Manganese oxide ; Manganites ; Physics ; Scanning electron microscopy ; Silver ; X-ray diffraction ; X-rays</subject><ispartof>Journal of magnetism and magnetic materials, 2011, Vol.323 (2), p.252-257</ispartof><rights>2010 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c395t-f475be764c886db036acb7b72e96e9a3ee5536874533fba80710ba4b35f8e1353</citedby><cites>FETCH-LOGICAL-c395t-f475be764c886db036acb7b72e96e9a3ee5536874533fba80710ba4b35f8e1353</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jmmm.2010.09.020$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,4024,27923,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23377974$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Koubaa, M.</creatorcontrib><creatorcontrib>Regaieg, Y.</creatorcontrib><creatorcontrib>Cheikhrouhou Koubaa, W.</creatorcontrib><creatorcontrib>Cheikhrouhou, A.</creatorcontrib><creatorcontrib>Ammar-Merah, S.</creatorcontrib><creatorcontrib>Herbst, F.</creatorcontrib><title>Magnetic and magnetocaloric properties of lanthanum manganites with monovalent elements doping at A-site</title><title>Journal of magnetism and magnetic materials</title><description>In this study, magnetic and magnetocaloric properties of La
0.8K
0.1M
0.1MnO
3 with M=Na and Ag compounds have been investigated. X-ray diffraction analysis using Rietveld refinement reveals that La
0.8K
0.1Na
0.1MnO
3 and La
0.8K
0.1Ag
0.1MnO
3 samples crystallize in the distorted rhombohedral system with R3¯c space group. The surface morphology and elemental analysis of both samples were carried out by scanning electron microscopy (SEM) and energy dispersive X-ray technique (EDAX), respectively. EDAX spectra taken from the surface of the synthesized powders show a nominal composition near the desired one for M=Na sample whereas some vacancies are present in the A-site in the case of Ag substitution as will be discussed in this paper. Magnetization measurements versus temperature in a magnetic applied field of 50
mT showed that our samples are ferromagnetic at low temperatures. Curie temperature
T
C
is found to be 330 and 310
K for M=Na and Ag, respectively. Arrott plots deduced from isothermal magnetization curves indicate that our samples exhibit a second order magnetic phase transition. From the measured magnetization data of La
0.8K
0.1M
0.1MnO
3 with M=Na and Ag samples as a function of magnetic applied field, the associated magnetic entropy change,
|
Δ
S
M
|
, close to their respective Curie temperature
T
C
and the relative cooling power RCP have been determined. The maximum magnetic entropy change,
|
Δ
S
M
M
a
x
|
, reaches 4.39 and 4.92
J/kg
K for M=Na and Ag, respectively, in a magnetic applied field change of 5
T. For both samples, the
|
Δ
S
M
|
values determined by the Maxwell theory agree well with those calculated by the Landau theory.</description><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Entropy</subject><subject>Exact sciences and technology</subject><subject>Ferromagnetism</subject><subject>Isothermal magnetization</subject><subject>Magnetic properties</subject><subject>Magnetic properties and materials</subject><subject>Magnetically ordered materials: other intrinsic properties</subject><subject>Magnetization</subject><subject>Magnetocaloric effect</subject><subject>Magnetocaloric effect, magnetic cooling</subject><subject>Magnetotransport phenomena, materials for magnetotransport</subject><subject>Manganese oxide</subject><subject>Manganites</subject><subject>Physics</subject><subject>Scanning electron microscopy</subject><subject>Silver</subject><subject>X-ray diffraction</subject><subject>X-rays</subject><issn>0304-8853</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNp9kLtOwzAUhjOABBRegMkLgiXBie3YkVgQ4iYVscBsOc5J6yq2i-0W8fa4FDEyHZ1f37noK4rzGlc1rtvrVbWy1lYNzgHuKtzgg-IYE0xLIRg5Kk5iXGGMayra42L5ohYOktFIuQHZn8ZrNfmQo3XwawjJQER-RJNyaancxmbMLZQzKeefJi2R9c5v1QQuIZjA5hrR4NfGLZBK6LaMGT0tDkc1RTj7rbPi_eH-7e6pnL8-Pt_dzktNOpbKkXLWA2-pFqIdekxapXve8wa6FjpFABgjreCUETL2SmBe417RnrBRQE0YmRWX-735-Y8NxCStiRqm_D34TZSCdpRSQXkmr_4la84Io6IhXUabPaqDjzHAKNfBWBW-ZI3lTrpcyZ10uZMucSez9Dx08btfxWx0DMppE_8mG0I47zjN3M2eg6xlayDIqA04DYMJoJMcvPnvzDd6vZs7</recordid><startdate>2011</startdate><enddate>2011</enddate><creator>Koubaa, M.</creator><creator>Regaieg, Y.</creator><creator>Cheikhrouhou Koubaa, W.</creator><creator>Cheikhrouhou, A.</creator><creator>Ammar-Merah, S.</creator><creator>Herbst, F.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>2011</creationdate><title>Magnetic and magnetocaloric properties of lanthanum manganites with monovalent elements doping at A-site</title><author>Koubaa, M. ; Regaieg, Y. ; Cheikhrouhou Koubaa, W. ; Cheikhrouhou, A. ; Ammar-Merah, S. ; Herbst, F.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c395t-f475be764c886db036acb7b72e96e9a3ee5536874533fba80710ba4b35f8e1353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Entropy</topic><topic>Exact sciences and technology</topic><topic>Ferromagnetism</topic><topic>Isothermal magnetization</topic><topic>Magnetic properties</topic><topic>Magnetic properties and materials</topic><topic>Magnetically ordered materials: other intrinsic properties</topic><topic>Magnetization</topic><topic>Magnetocaloric effect</topic><topic>Magnetocaloric effect, magnetic cooling</topic><topic>Magnetotransport phenomena, materials for magnetotransport</topic><topic>Manganese oxide</topic><topic>Manganites</topic><topic>Physics</topic><topic>Scanning electron microscopy</topic><topic>Silver</topic><topic>X-ray diffraction</topic><topic>X-rays</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Koubaa, M.</creatorcontrib><creatorcontrib>Regaieg, Y.</creatorcontrib><creatorcontrib>Cheikhrouhou Koubaa, W.</creatorcontrib><creatorcontrib>Cheikhrouhou, A.</creatorcontrib><creatorcontrib>Ammar-Merah, S.</creatorcontrib><creatorcontrib>Herbst, F.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</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>Journal of magnetism and magnetic materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Koubaa, M.</au><au>Regaieg, Y.</au><au>Cheikhrouhou Koubaa, W.</au><au>Cheikhrouhou, A.</au><au>Ammar-Merah, S.</au><au>Herbst, F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic and magnetocaloric properties of lanthanum manganites with monovalent elements doping at A-site</atitle><jtitle>Journal of magnetism and magnetic materials</jtitle><date>2011</date><risdate>2011</risdate><volume>323</volume><issue>2</issue><spage>252</spage><epage>257</epage><pages>252-257</pages><issn>0304-8853</issn><coden>JMMMDC</coden><abstract>In this study, magnetic and magnetocaloric properties of La
0.8K
0.1M
0.1MnO
3 with M=Na and Ag compounds have been investigated. X-ray diffraction analysis using Rietveld refinement reveals that La
0.8K
0.1Na
0.1MnO
3 and La
0.8K
0.1Ag
0.1MnO
3 samples crystallize in the distorted rhombohedral system with R3¯c space group. The surface morphology and elemental analysis of both samples were carried out by scanning electron microscopy (SEM) and energy dispersive X-ray technique (EDAX), respectively. EDAX spectra taken from the surface of the synthesized powders show a nominal composition near the desired one for M=Na sample whereas some vacancies are present in the A-site in the case of Ag substitution as will be discussed in this paper. Magnetization measurements versus temperature in a magnetic applied field of 50
mT showed that our samples are ferromagnetic at low temperatures. Curie temperature
T
C
is found to be 330 and 310
K for M=Na and Ag, respectively. Arrott plots deduced from isothermal magnetization curves indicate that our samples exhibit a second order magnetic phase transition. From the measured magnetization data of La
0.8K
0.1M
0.1MnO
3 with M=Na and Ag samples as a function of magnetic applied field, the associated magnetic entropy change,
|
Δ
S
M
|
, close to their respective Curie temperature
T
C
and the relative cooling power RCP have been determined. The maximum magnetic entropy change,
|
Δ
S
M
M
a
x
|
, reaches 4.39 and 4.92
J/kg
K for M=Na and Ag, respectively, in a magnetic applied field change of 5
T. For both samples, the
|
Δ
S
M
|
values determined by the Maxwell theory agree well with those calculated by the Landau theory.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jmmm.2010.09.020</doi><tpages>6</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0304-8853 |
ispartof | Journal of magnetism and magnetic materials, 2011, Vol.323 (2), p.252-257 |
issn | 0304-8853 |
language | eng |
recordid | cdi_proquest_miscellaneous_849444847 |
source | Access via ScienceDirect (Elsevier) |
subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Entropy Exact sciences and technology Ferromagnetism Isothermal magnetization Magnetic properties Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Magnetization Magnetocaloric effect Magnetocaloric effect, magnetic cooling Magnetotransport phenomena, materials for magnetotransport Manganese oxide Manganites Physics Scanning electron microscopy Silver X-ray diffraction X-rays |
title | Magnetic and magnetocaloric properties of lanthanum manganites with monovalent elements doping at A-site |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T19%3A44%3A53IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Magnetic%20and%20magnetocaloric%20properties%20of%20lanthanum%20manganites%20with%20monovalent%20elements%20doping%20at%20A-site&rft.jtitle=Journal%20of%20magnetism%20and%20magnetic%20materials&rft.au=Koubaa,%20M.&rft.date=2011&rft.volume=323&rft.issue=2&rft.spage=252&rft.epage=257&rft.pages=252-257&rft.issn=0304-8853&rft.coden=JMMMDC&rft_id=info:doi/10.1016/j.jmmm.2010.09.020&rft_dat=%3Cproquest_cross%3E1753548239%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=1753548239&rft_id=info:pmid/&rft_els_id=S0304885310006463&rfr_iscdi=true |