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dc.contributor.authorZeng, Qingqi
dc.contributor.authorShen, Jianlei
dc.contributor.authorLiu, Enke
dc.contributor.authorXi, Xuekui
dc.contributor.authorWang, Wenhong
dc.contributor.authorWu, Guangheng
dc.contributor.authorZhang, Xixiang
dc.date.accessioned2020-08-10T13:30:33Z
dc.date.available2020-08-10T13:30:33Z
dc.date.issued2020-07-14
dc.date.submitted2020-04-22
dc.identifier.citationZeng, Q., Shen, J., Liu, E., Xi, X., Wang, W., Wu, G., & Zhang, X. (2020). Large Barocaloric Effect with High Pressure-Driving Efficiency in a Hexagonal MnNi0.77Fe0.23Ge Alloy. Chinese Physics Letters, 37(7), 076101. doi:10.1088/0256-307x/37/7/076101
dc.identifier.issn1741-3540
dc.identifier.issn0256-307X
dc.identifier.doi10.1088/0256-307X/37/7/076101
dc.identifier.urihttp://hdl.handle.net/10754/664541
dc.description.abstractThe hydrostatic pressure is expected to be an effective knob to tune the magnetostructural phase transitions of hexagonal MM'X alloys (M and M' denote transition metals and X represents main group elements). We perform magnetization measurements under hydrostatic pressure on an MM'X martensitic MnNi20.77Fe0.23Ge alloy. The magnetostructural transition temperature can be efficiently tuned to lower temperatures by applying moderate pressures, with a giant shift rate of -151 K/GPa. A temperature span of 30 K is obtained under the pressure, within which a large magnetic entropy change of -23 J⋅kg-1K-1 in a field change of 5 T is induced by the mechanical energy gain due to the large volume change. Meanwhile, a decoupling of structural and magnetic transitions is observed at low temperatures when the martensitic transition temperature is lower than the Curie temperature. These results show a multi-parameter tunable caloric effect that benefits the solid-state cooling.
dc.publisherIOP Publishing
dc.relation.urlhttps://iopscience.iop.org/article/10.1088/0256-307X/37/7/076101
dc.rightsThis is an author-created, un-copyedited version of an article accepted for publication/published in Chinese Physics Letters. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://doi.org/10.1088/0256-307X/37/7/076101
dc.titleLarge Barocaloric Effect with High Pressure-Driving Efficiency in a Hexagonal MnNi0.77Fe0.23Ge Alloy
dc.typeArticle
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalChinese Physics Letters
dc.rights.embargodate2021-07-14
dc.eprint.versionPost-print
dc.contributor.institutionInstitute of Physics, Chinese Academy of Sciences, Beijing 100190, China
dc.contributor.institutionUniversity of Chinese Academy of Sciences, Beijing 100049, China
dc.contributor.institutionSongshan Lake Materials Laboratory, Dongguan 523808, China
dc.identifier.volume37
dc.identifier.issue7
dc.identifier.pages076101
kaust.personZhang, Xixiang
dc.date.accepted2020-06-21
dc.identifier.eid2-s2.0-85088638200
refterms.dateFOA2020-08-11T06:24:44Z
dc.date.published-online2020-07-14
dc.date.published-print2020-07


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