Published November 2010 | Version v1
Journal article Metadata-only

Excellent Magnetocaloric Effect in Er60Al18Co22 Bulk Metallic Glass

Creators

  • 1. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083 (China)

Description

Excellent magnetocaloric effect with a maximum entropy change and refrigeration capacity of 17.6 J·kg−1·K−1 and 546 J·kg−1, respectively, has been discovered in the Er60Al18Co22 bulk metallic glass under the field of 50 kOe in the temperature range of helium liquefaction. This MCE results from the second-order magnetic transition from the paramagnetic to the ferromagnetic state. Our analysis based on mean-field theory suggests that the excellent MCE is attributed to the strong exchange of magnetic moment in the glassy structure. (condensed matter: electronic structure, electrical, magnetic, and optical properties)

Availability note (English)

Available from http://dx.doi.org/10.1088/0256-307X/27/11/117502

Additional details

Identifiers

DOI
10.1088/0256-307X/27/11/117502;

Publishing Information

Journal Title
Chinese Physics Letters
Journal Volume
27
Journal Issue
11
Journal Page Range
[4 p.]
ISSN
0256-307X
CODEN
CPLEEU

INIS

Country of Publication
China
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45000129
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ALUMINIUM; COBALT; ENTROPY; ERBIUM; FERROMAGNETISM; INTERMETALLIC COMPOUNDS; LIQUEFACTION; MAGNETIC MOMENTS; MAGNETIC PROPERTIES; MEAN-FIELD THEORY; METALLIC GLASSES; PARAMAGNETISM; REFRIGERATION; TEMPERATURE RANGE 0000-0013 K
Descriptors DEC
ALLOYS; COOLING; ELEMENTS; MAGNETISM; METALS; PHYSICAL PROPERTIES; RARE EARTHS; TEMPERATURE RANGE; THERMOCHEMICAL PROCESSES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS