Evolution of magnetostructural transition and magnetocaloric effect with Al doping in MnCoGe1-xAlx compounds

Handle URI:
http://hdl.handle.net/10754/563330
Title:
Evolution of magnetostructural transition and magnetocaloric effect with Al doping in MnCoGe1-xAlx compounds
Authors:
Bao, Lifu; Hu, Fengxia; Wu, Rongrong; Wang, Jianping; Chen, Liming; Sun, Jirong; Shen, Baogen; Li, Lain-Jong ( 0000-0002-4059-7783 ) ; Zhang, Bei; Zhang, Xixiang ( 0000-0002-3478-6414 )
Abstract:
The effect of Al doping in MnCoGe1-xAlx compounds has been investigated. The substitution of Al for Ge enhances Mn-Mn covalent bonding by shortening the distance of nearest Mn atom layers, and thus stabilizes the hexagonal structure. As a result, first-order magnetostructural transition between ferromagnetic martensite and paramagnetic austenite takes place for the optimized compositions (x = 0.01, 0.02). Accompanied with the magnetostructural transition, large magnetocaloric effect (MCE) is observed. More doping of Al(x = 0.03, 0.04) leads to the separation of magnetic and structural transitions and remarkable reduction of MCE. © 2014 IOP Publishing Ltd.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program; Core Labs
Publisher:
IOP Publishing
Journal:
Journal of Physics D: Applied Physics
Issue Date:
3-Jan-2014
DOI:
10.1088/0022-3727/47/5/055003
Type:
Article
ISSN:
00223727
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorBao, Lifuen
dc.contributor.authorHu, Fengxiaen
dc.contributor.authorWu, Rongrongen
dc.contributor.authorWang, Jianpingen
dc.contributor.authorChen, Limingen
dc.contributor.authorSun, Jirongen
dc.contributor.authorShen, Baogenen
dc.contributor.authorLi, Lain-Jongen
dc.contributor.authorZhang, Beien
dc.contributor.authorZhang, Xixiangen
dc.date.accessioned2015-08-03T11:45:55Zen
dc.date.available2015-08-03T11:45:55Zen
dc.date.issued2014-01-03en
dc.identifier.issn00223727en
dc.identifier.doi10.1088/0022-3727/47/5/055003en
dc.identifier.urihttp://hdl.handle.net/10754/563330en
dc.description.abstractThe effect of Al doping in MnCoGe1-xAlx compounds has been investigated. The substitution of Al for Ge enhances Mn-Mn covalent bonding by shortening the distance of nearest Mn atom layers, and thus stabilizes the hexagonal structure. As a result, first-order magnetostructural transition between ferromagnetic martensite and paramagnetic austenite takes place for the optimized compositions (x = 0.01, 0.02). Accompanied with the magnetostructural transition, large magnetocaloric effect (MCE) is observed. More doping of Al(x = 0.03, 0.04) leads to the separation of magnetic and structural transitions and remarkable reduction of MCE. © 2014 IOP Publishing Ltd.en
dc.publisherIOP Publishingen
dc.subjectmagnetocaloric effecten
dc.subjectmagnetostructural transitionen
dc.subjectMnCoGe 1?xAlx compoundsen
dc.titleEvolution of magnetostructural transition and magnetocaloric effect with Al doping in MnCoGe1-xAlx compoundsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentCore Labsen
dc.identifier.journalJournal of Physics D: Applied Physicsen
dc.contributor.institutionBeijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, Chinaen
kaust.authorLi, Lain-Jongen
kaust.authorZhang, Beien
kaust.authorZhang, Xixiangen
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