New aspects of magnetocaloric effect in NiMn sub(0.89)Cr sub(0.11)Ge
Investigations of structural and magnetic phase transitions in the NiMn sub(0.89)Cr sub(0.11)Ge half-Heusler alloy were carried out by DSC, XRD (80-400 K), magnetic susceptibility and magnetization (1.9-400 K, magnetic field up to 9.0 T, pressure up to 5.25 kbar) measurements. At high temperatures t...
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| Veröffentlicht in: | Journal of magnetism and magnetic materials 2015-07, Vol.385, p.1-6 |
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| container_title | Journal of magnetism and magnetic materials |
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| creator | Jaworska-Golab, T Baran, S Duraj, R Marzec, M Dyakonov, V Sivachenko, A Tyvanchuk, Yu Szymczak, H Szytula, A |
| description | Investigations of structural and magnetic phase transitions in the NiMn sub(0.89)Cr sub(0.11)Ge half-Heusler alloy were carried out by DSC, XRD (80-400 K), magnetic susceptibility and magnetization (1.9-400 K, magnetic field up to 9.0 T, pressure up to 5.25 kbar) measurements. At high temperatures the sample is a single phase crystallizing in the hexagonal crystal structure (Ni sub(2)In-type, space group P6 sub(3)/mmc) while below 260 K, down to 100 K, some amount of the hexagonal phase coexists with the orthorhombic (TiNiSi-type, space group Pnma) one. Strong magnetostructural coupling is observed. Magnetic data indicate that with increasing temperature magnetic properties of the sample change from antiferro- to ferro- and then to paramagnetic ones. The latter magnetic phase transition is associated with the crystal structure change and results in large magnetic entropy change equal to -51 J/kg K at mu sub(o)H = 9.0 T near 260 K. Application of external pressure shifts T sub(c) towards lower temperatures. |
| doi_str_mv | 10.1016/j.jmmm.2015.02.076 |
| format | Article |
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At high temperatures the sample is a single phase crystallizing in the hexagonal crystal structure (Ni sub(2)In-type, space group P6 sub(3)/mmc) while below 260 K, down to 100 K, some amount of the hexagonal phase coexists with the orthorhombic (TiNiSi-type, space group Pnma) one. Strong magnetostructural coupling is observed. Magnetic data indicate that with increasing temperature magnetic properties of the sample change from antiferro- to ferro- and then to paramagnetic ones. The latter magnetic phase transition is associated with the crystal structure change and results in large magnetic entropy change equal to -51 J/kg K at mu sub(o)H = 9.0 T near 260 K. Application of external pressure shifts T sub(c) towards lower temperatures.</description><identifier>ISSN: 0304-8853</identifier><identifier>DOI: 10.1016/j.jmmm.2015.02.076</identifier><language>eng</language><subject>Crystal structure ; Differential scanning calorimetry ; Entropy ; Magnetic fields ; Magnetic permeability ; Magnetic properties ; Magnetization ; Phase transformations</subject><ispartof>Journal of magnetism and magnetic materials, 2015-07, Vol.385, p.1-6</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Jaworska-Golab, T</creatorcontrib><creatorcontrib>Baran, S</creatorcontrib><creatorcontrib>Duraj, R</creatorcontrib><creatorcontrib>Marzec, M</creatorcontrib><creatorcontrib>Dyakonov, V</creatorcontrib><creatorcontrib>Sivachenko, A</creatorcontrib><creatorcontrib>Tyvanchuk, Yu</creatorcontrib><creatorcontrib>Szymczak, H</creatorcontrib><creatorcontrib>Szytula, A</creatorcontrib><title>New aspects of magnetocaloric effect in NiMn sub(0.89)Cr sub(0.11)Ge</title><title>Journal of magnetism and magnetic materials</title><description>Investigations of structural and magnetic phase transitions in the NiMn sub(0.89)Cr sub(0.11)Ge half-Heusler alloy were carried out by DSC, XRD (80-400 K), magnetic susceptibility and magnetization (1.9-400 K, magnetic field up to 9.0 T, pressure up to 5.25 kbar) measurements. At high temperatures the sample is a single phase crystallizing in the hexagonal crystal structure (Ni sub(2)In-type, space group P6 sub(3)/mmc) while below 260 K, down to 100 K, some amount of the hexagonal phase coexists with the orthorhombic (TiNiSi-type, space group Pnma) one. Strong magnetostructural coupling is observed. Magnetic data indicate that with increasing temperature magnetic properties of the sample change from antiferro- to ferro- and then to paramagnetic ones. The latter magnetic phase transition is associated with the crystal structure change and results in large magnetic entropy change equal to -51 J/kg K at mu sub(o)H = 9.0 T near 260 K. Application of external pressure shifts T sub(c) towards lower temperatures.</description><subject>Crystal structure</subject><subject>Differential scanning calorimetry</subject><subject>Entropy</subject><subject>Magnetic fields</subject><subject>Magnetic permeability</subject><subject>Magnetic properties</subject><subject>Magnetization</subject><subject>Phase transformations</subject><issn>0304-8853</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqVjbkOgkAURafQRFx-wGpKKBjfsFPj1khlT0byMBCGQR7E35eCH7C6JzknuYwdJQgJMjo1otFaCw9kKMATEEcrZoEPgZskob9hW6IGAGSQRBY75_jlinosR-Km4lq9OxxNqVoz1CXHqpoNrzue14-O0_SyQSSpkw0LS-nccM_WlWoJD8vumH29PLO72w_mMyGNha6pxLZVHZqJChlDGgfzv-__kf4AM2lBew</recordid><startdate>20150701</startdate><enddate>20150701</enddate><creator>Jaworska-Golab, T</creator><creator>Baran, S</creator><creator>Duraj, R</creator><creator>Marzec, M</creator><creator>Dyakonov, V</creator><creator>Sivachenko, A</creator><creator>Tyvanchuk, Yu</creator><creator>Szymczak, H</creator><creator>Szytula, A</creator><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20150701</creationdate><title>New aspects of magnetocaloric effect in NiMn sub(0.89)Cr sub(0.11)Ge</title><author>Jaworska-Golab, T ; Baran, S ; Duraj, R ; Marzec, M ; Dyakonov, V ; Sivachenko, A ; Tyvanchuk, Yu ; Szymczak, H ; Szytula, A</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-proquest_miscellaneous_17097448633</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Crystal structure</topic><topic>Differential scanning calorimetry</topic><topic>Entropy</topic><topic>Magnetic fields</topic><topic>Magnetic permeability</topic><topic>Magnetic properties</topic><topic>Magnetization</topic><topic>Phase transformations</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Jaworska-Golab, T</creatorcontrib><creatorcontrib>Baran, S</creatorcontrib><creatorcontrib>Duraj, R</creatorcontrib><creatorcontrib>Marzec, M</creatorcontrib><creatorcontrib>Dyakonov, V</creatorcontrib><creatorcontrib>Sivachenko, A</creatorcontrib><creatorcontrib>Tyvanchuk, Yu</creatorcontrib><creatorcontrib>Szymczak, H</creatorcontrib><creatorcontrib>Szytula, A</creatorcontrib><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>Jaworska-Golab, T</au><au>Baran, S</au><au>Duraj, R</au><au>Marzec, M</au><au>Dyakonov, V</au><au>Sivachenko, A</au><au>Tyvanchuk, Yu</au><au>Szymczak, H</au><au>Szytula, A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>New aspects of magnetocaloric effect in NiMn sub(0.89)Cr sub(0.11)Ge</atitle><jtitle>Journal of magnetism and magnetic materials</jtitle><date>2015-07-01</date><risdate>2015</risdate><volume>385</volume><spage>1</spage><epage>6</epage><pages>1-6</pages><issn>0304-8853</issn><abstract>Investigations of structural and magnetic phase transitions in the NiMn sub(0.89)Cr sub(0.11)Ge half-Heusler alloy were carried out by DSC, XRD (80-400 K), magnetic susceptibility and magnetization (1.9-400 K, magnetic field up to 9.0 T, pressure up to 5.25 kbar) measurements. At high temperatures the sample is a single phase crystallizing in the hexagonal crystal structure (Ni sub(2)In-type, space group P6 sub(3)/mmc) while below 260 K, down to 100 K, some amount of the hexagonal phase coexists with the orthorhombic (TiNiSi-type, space group Pnma) one. Strong magnetostructural coupling is observed. Magnetic data indicate that with increasing temperature magnetic properties of the sample change from antiferro- to ferro- and then to paramagnetic ones. The latter magnetic phase transition is associated with the crystal structure change and results in large magnetic entropy change equal to -51 J/kg K at mu sub(o)H = 9.0 T near 260 K. Application of external pressure shifts T sub(c) towards lower temperatures.</abstract><doi>10.1016/j.jmmm.2015.02.076</doi></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Crystal structure Differential scanning calorimetry Entropy Magnetic fields Magnetic permeability Magnetic properties Magnetization Phase transformations |
| title | New aspects of magnetocaloric effect in NiMn sub(0.89)Cr sub(0.11)Ge |
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