Large reversible magnetocaloric effect due to a rather unstable antiferromagnetic ground state in Er4NiCd
(2010) In Applied Physics Reviews 108(11).- Abstract
- Er4NiCd crystallizes with the Gd4RhIn type structure, space group F (4) over bar 3m, a=1333.3 pm. The nickel atoms have trigonal prismatic rare earth coordination. Condensation of the NiEr6 prisms leads to a three-dimensional network which leaves voids that are filled by regular Cd-4 tetrahedra. Er4NiCd shows Curie-Weiss behavior above 50 K with T-N=5.9 K. At field strength of 4 kOe a metamagnetic step is visible, together with the positive paramagnetic Curie-temperature (7.5 K) indicative for the rather unstable antiferromagnetic ground state. Therefore, a large reversible magnetocaloric effect (MCE) near the ordering temperature occurs and the values of the maximum magnetic-entropy change -Delta S-M(max) reach 18.3 J kg(-1) K-1 for the... (More)
- Er4NiCd crystallizes with the Gd4RhIn type structure, space group F (4) over bar 3m, a=1333.3 pm. The nickel atoms have trigonal prismatic rare earth coordination. Condensation of the NiEr6 prisms leads to a three-dimensional network which leaves voids that are filled by regular Cd-4 tetrahedra. Er4NiCd shows Curie-Weiss behavior above 50 K with T-N=5.9 K. At field strength of 4 kOe a metamagnetic step is visible, together with the positive paramagnetic Curie-temperature (7.5 K) indicative for the rather unstable antiferromagnetic ground state. Therefore, a large reversible magnetocaloric effect (MCE) near the ordering temperature occurs and the values of the maximum magnetic-entropy change -Delta S-M(max) reach 18.3 J kg(-1) K-1 for the field change of 5 T with no obvious hysteresis loss around 17 K. The corresponding RCP of 595 J kg(-1) is relatively high as compared to other MCE materials in that temperature range. These results indicate that Er4NiCd could be a promising system for magnetic refrigeration at temperatures below liquid H-2. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3518556] (Less)
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https://lup.lub.lu.se/record/1868074
- author
- Hermes, Wilfried LU ; Rodewald, Ute Ch. and Poettgen, Rainer
- organization
- publishing date
- 2010
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Physics Reviews
- volume
- 108
- issue
- 11
- article number
- 113919
- publisher
- American Institute of Physics (AIP)
- external identifiers
-
- wos:000285474100090
- scopus:78751483486
- ISSN
- 1931-9401
- DOI
- 10.1063/1.3518556
- language
- English
- LU publication?
- yes
- additional info
- The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)
- id
- 74331067-254c-432f-81b1-a0f41bfe6c91 (old id 1868074)
- date added to LUP
- 2016-04-01 09:51:04
- date last changed
- 2022-03-04 05:35:54
@article{74331067-254c-432f-81b1-a0f41bfe6c91,
abstract = {{Er4NiCd crystallizes with the Gd4RhIn type structure, space group F (4) over bar 3m, a=1333.3 pm. The nickel atoms have trigonal prismatic rare earth coordination. Condensation of the NiEr6 prisms leads to a three-dimensional network which leaves voids that are filled by regular Cd-4 tetrahedra. Er4NiCd shows Curie-Weiss behavior above 50 K with T-N=5.9 K. At field strength of 4 kOe a metamagnetic step is visible, together with the positive paramagnetic Curie-temperature (7.5 K) indicative for the rather unstable antiferromagnetic ground state. Therefore, a large reversible magnetocaloric effect (MCE) near the ordering temperature occurs and the values of the maximum magnetic-entropy change -Delta S-M(max) reach 18.3 J kg(-1) K-1 for the field change of 5 T with no obvious hysteresis loss around 17 K. The corresponding RCP of 595 J kg(-1) is relatively high as compared to other MCE materials in that temperature range. These results indicate that Er4NiCd could be a promising system for magnetic refrigeration at temperatures below liquid H-2. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3518556]}},
author = {{Hermes, Wilfried and Rodewald, Ute Ch. and Poettgen, Rainer}},
issn = {{1931-9401}},
language = {{eng}},
number = {{11}},
publisher = {{American Institute of Physics (AIP)}},
series = {{Applied Physics Reviews}},
title = {{Large reversible magnetocaloric effect due to a rather unstable antiferromagnetic ground state in Er4NiCd}},
url = {{http://dx.doi.org/10.1063/1.3518556}},
doi = {{10.1063/1.3518556}},
volume = {{108}},
year = {{2010}},
}