Published September 2007
| Version v1
Journal article
Manganese perovskites for room temperature magnetic refrigeration applications
Creators
- 1. Department of Aerospace Engineering, University of Bristol, Queen's Building, University Walk, Bristol, BS8 1TR (United Kingdom)
- 2. Department of Physics, Chungbuk National University, Cheongju 361-763 (Korea, Republic of)
- 3. Center for Materials Science, National University of Hanoi, 334 Nguyen Trai, Hanoi (Viet Nam)
Description
We found the large magnetocaloric effect (MCE) in La0.6Ca0.3Pb0.1MnO3 (sample No. 1), La0.7Ca0.2Pb0.1MnO3 (sample No. 2), and La0.7Ca0.1Pb0.2MnO3 (sample No. 3) perovskites, which were prepared by a conventional ceramic method. For a magnetic field change of 13.5 kOe, the magnetic entropy change (ΔS M) reached values of 2.55, 2.53 and 3.72 J/kg K for samples Nos. 1, 2 and 3, respectively. Interestingly, the large ΔS M was found to occur around 300 K for all samples investigated, which allows magnetic refrigeration at room temperature. These perovskites have the large magnetic entropy changes induced by low magnetic field change, which is beneficial for the household application of active magnetic refrigerant (AMR) materials
Additional details
Identifiers
- DOI
- 10.1016/j.jmmm.2007.03.021;
- PII
- S0304-8853(07)00342-3;
Publishing Information
- Journal Title
- Journal of Magnetism and Magnetic Materials
- Journal Volume
- 316
- Journal Issue
- 2
- Journal Page Range
- p. e562-e565
- ISSN
- 0304-8853
- CODEN
- JMMMDC
Conference
- Title
- Joint European magnetic symposia
- Dates
- 26-30 Jun 2006
- Place
- San Sebastian (Spain)
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39035493
- Subject category
- S36: MATERIALS SCIENCE;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CALCIUM COMPOUNDS; CERAMICS; ENTROPY; LANTHANUM COMPOUNDS; LEAD COMPOUNDS; MAGNETIC FIELDS; MAGNETIC PROPERTIES; MANGANESE COMPOUNDS; OXIDES; PEROVSKITE; REFRIGERANTS; REFRIGERATION; TEMPERATURE RANGE 0273-0400 K
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; CHALCOGENIDES; COOLING; FLUIDS; MINERALS; OXIDE MINERALS; OXYGEN COMPOUNDS; PEROVSKITES; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; WORKING FLUIDS
Optional Information
- Copyright
- Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.