Published May 1, 2013
| Version v1
Journal article
Constant magnetothermal response in two-layered perovskite (La1−xGdx)1.4Ca1.6Mn2O7
- 1. Department of Physics, Changshu Institute of Technology, Changshu 215500 (China)
- 2. Jiangsu Laboratory of Advanced Functional Materials, Changshu Institute of Technology, Changshu 215500 (China)
Description
A series of (La1−xGdx)1.4Ca1.6Mn2O7 (x=0–0.1) compounds were prepared by solid state reaction. With the increase of Gd content, Curie temperature decreases from 259 K to 192 K. These compounds show constant magnetic entropy changes (ΔSM) of 3.0–3.1 J/kg K in the field of 1 T. In their composite materials, a plateau in ΔSM with enhanced refrigerant capacity can be obtained, indicating that they are advantageous for an Ericsson refrigeration cycle. In addition, they have other advantages such as negligible magnetic hysteresis, small eddy loss, and high chemical stability. These properties make (La1−xGdx)1.4Ca1.6Mn2O7 good candidate for the practical magnetic refrigeration
Availability note (English)
Available from http://dx.doi.org/10.1016/j.physb.2013.02.021Additional details
Identifiers
- DOI
- 10.1016/j.physb.2013.02.021;
- PII
- S0921-4526(13)00097-5;
Publishing Information
- Journal Title
- Physica. B, Condensed Matter
- Journal Volume
- 416
- Journal Page Range
- p. 76-80
- ISSN
- 0921-4526
- CODEN
- PHYBE3
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 45056801
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- CAPACITY; COMPOSITE MATERIALS; CURIE POINT; ENTROPY; HYSTERESIS; LOSSES; MAGNETIC PROPERTIES; PEROVSKITE; REFRIGERANTS; REFRIGERATION; SOLIDS; STABILITY
- Descriptors DEC
- COOLING; FLUIDS; MATERIALS; MINERALS; OXIDE MINERALS; PEROVSKITES; PHYSICAL PROPERTIES; THERMODYNAMIC PROPERTIES; TRANSITION TEMPERATURE; WORKING FLUIDS
Optional Information
- Copyright
- Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.