The La(Fe,Mn,Si)(13)H-z magnetic phase transition under pressure
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
We study the magnetocaloric metamagnetic transition in LaFe11.74Mn0.06Si1.20 and LaFe11.76Mn0.06Si1.18H1.65 under hydrostatic pressure up to 1.2 GPa. For both compounds, hydrostatic pressure depresses the zero field critical temperature. However, in detail, pressure influences the magnetic properties in different ways in the two compounds. In the dehydrogenated case the transition broadens under pressure whereas in the hydrogenated case the transition sharpens. In both cases thermal hysteresis increases under pressure, although with different trends. These observations suggest both intrinsic and extrinsic hysteresis loss brought about by the use of hydrostatic pressure. We explore the multicaloric field-pressure cycle, demonstrating that although the gain introduced by overcoming the magnetic hysteresis loss is closely countered by the loss introduced in the pressure cycle, there are significant advantages in that the temperature range of operation can be finely tuned and extended, and the magnetocaloric transition can operate in lower absolute applied fields (<0.5 T), potentially overcoming one of the most significant bottlenecks to the commercialization of this technology.
Date Issued
2017-07-10
Date Acceptance
2017-06-26
Citation
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2017, 11 (8)
ISSN
1862-6254
Publisher
WILEY-V C H VERLAG GMBH
Journal / Book Title
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
Volume
11
Issue
8
Copyright Statement
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. This is the accepted version of the following article: Lovell, E., Bez, H. N., Boldrin, D. C., Nielsen, K. K., Smith, A., Bahl, C. R. H. and Cohen, L. F. (2017), The La(Fe,Mn,Si)13Hz magnetic phase transition under pressure. Phys. Status Solidi RRL, 11: n/a, 1700143. doi:10.1002/pssr.201700143, which has been published in final form at https://dx.doi.org/10.1002/pssr.201700143
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000407919400006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Physical Sciences
Materials Science, Multidisciplinary
Physics, Applied
Physics, Condensed Matter
Materials Science
Physics
hydrostatic pressure
hysteresis
magnetocaloric effect
multicaloric effect
phase transitions
MAGNETOCALORIC PROPERTIES
LA(FE
MN
0204 Condensed Matter Physics
0912 Materials Engineering
1007 Nanotechnology
Applied Physics
Publication Status
Published
Article Number
ARTN 1700143