Tuning Martensitic Phase Transition by Non-Magnetic Atom Vacancy in MnCoGe Alloys and Related Giant Magnetocaloric Effect.
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| Title: | Tuning Martensitic Phase Transition by Non-Magnetic Atom Vacancy in MnCoGe Alloys and Related Giant Magnetocaloric Effect. |
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| Authors: | Li-Fu Bao1 leaf_bao@yeah.net, Wen-Deng Huang1,2, Ya-Jie Ren1 |
| Source: | Chinese Physics Letters. Jul2016, Vol. 33 Issue 7, p1-1. 1p. |
| Subjects: | Phase transitions, Magnetocaloric effects, Alloys, Magnetic entropy, X-ray diffraction |
| Abstract: | The effects of non-magnetic atom vacancy on structural, martensitic phase transitions and the corresponding magnetocaloric effect in MnCoGe1−x alloys are investigated using x-ray diffraction and magnetic measurements. The introduction of non-magnetic atom vacancy leads to the decrease of the martensitic transition temperature and realizes a temperature window where magnetic and martensitic phase transitions can be tuned together. Moreover, the giant magnetocaloric effect accompanied with the coupled magnetic-structural transition is obtained. It is observed that the peak values of magnetic entropy change of MnCoGe0.97 are about −13.9, −35.1 and −47.4 J·kg−1 K−1 for ΔH = 2, 5, 7 T, respectively. [ABSTRACT FROM AUTHOR] |
| Copyright of Chinese Physics Letters is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Items | – Name: Title Label: Title Group: Ti Data: Tuning Martensitic Phase Transition by Non-Magnetic Atom Vacancy in MnCoGe Alloys and Related Giant Magnetocaloric Effect. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Li-Fu+Bao%22">Li-Fu Bao</searchLink><relatesTo>1</relatesTo><i> leaf_bao@yeah.net</i><br /><searchLink fieldCode="AR" term="%22Wen-Deng+Huang%22">Wen-Deng Huang</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Ya-Jie+Ren%22">Ya-Jie Ren</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Chinese+Physics+Letters%22">Chinese Physics Letters</searchLink>. Jul2016, Vol. 33 Issue 7, p1-1. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Phase+transitions%22">Phase transitions</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetocaloric+effects%22">Magnetocaloric effects</searchLink><br /><searchLink fieldCode="DE" term="%22Alloys%22">Alloys</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+entropy%22">Magnetic entropy</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+diffraction%22">X-ray diffraction</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The effects of non-magnetic atom vacancy on structural, martensitic phase transitions and the corresponding magnetocaloric effect in MnCoGe1−x alloys are investigated using x-ray diffraction and magnetic measurements. The introduction of non-magnetic atom vacancy leads to the decrease of the martensitic transition temperature and realizes a temperature window where magnetic and martensitic phase transitions can be tuned together. Moreover, the giant magnetocaloric effect accompanied with the coupled magnetic-structural transition is obtained. It is observed that the peak values of magnetic entropy change of MnCoGe0.97 are about −13.9, −35.1 and −47.4 J·kg−1 K−1 for ΔH = 2, 5, 7 T, respectively. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Chinese Physics Letters is the property of IOP Publishing and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1088/0256-307X/33/7/077502 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: 1 Subjects: – SubjectFull: Phase transitions Type: general – SubjectFull: Magnetocaloric effects Type: general – SubjectFull: Alloys Type: general – SubjectFull: Magnetic entropy Type: general – SubjectFull: X-ray diffraction Type: general Titles: – TitleFull: Tuning Martensitic Phase Transition by Non-Magnetic Atom Vacancy in MnCoGe Alloys and Related Giant Magnetocaloric Effect. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Li-Fu Bao – PersonEntity: Name: NameFull: Wen-Deng Huang – PersonEntity: Name: NameFull: Ya-Jie Ren IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 07 Text: Jul2016 Type: published Y: 2016 Identifiers: – Type: issn-print Value: 0256307X Numbering: – Type: volume Value: 33 – Type: issue Value: 7 Titles: – TitleFull: Chinese Physics Letters Type: main |
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