(Dy[sub 0. 5]Er[sub 0. 5])Al[sub 2]: A large magnetocaloric effect material for low-temperature magnetic refrigeration

Journal Article · Sun Jan 09 23:00:00 EST 1994 · Applied Physics Letters; (United States)

DOI:https://doi.org/10.1063/1.111520· OSTI ID:5305458

Gschneidner, Jr, K A; Takeya, H; Moorman, J O; Pecharsky, V K ^[1]

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1. Ames Laboratory and Department of Materials Science and Engineering, Iowa State University, Ames, Iowa 50011-3020 (United States)

The low-temprature heat capacity and ac and dc magnetic properties of (Dy[sub 0.5]Er[sub 0.5])Al[sub 2] have been studied as a function of magnetic fields up to [similar to]10 T. The magnetocaloric effect in (Dy[sub 0.5]Er[sub 0.5])Al[sub 2] is 30% larger than that of the prototype material, GdPd. Magnetic measurements show that there is no measurable magnetic hysteresis above [similar to]17 K. These results suggest that (Dy[sub 0.5]Er[sub 0.5])Al[sub 2] would be a significantly better magnetic refrigerant than GdPd.

• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 5305458
• Journal Information: Applied Physics Letters; (United States), Journal Name: Applied Physics Letters; (United States) Vol. 64:2; ISSN APPLAB; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
661210 -- Cryogenics-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALLOY SYSTEMS
ALLOYS
ALUMINIUM ALLOYS
BRITTLENESS
CRYOGENICS
DYSPROSIUM ALLOYS
ERBIUM ALLOYS
HYSTERESIS
INTERMETALLIC COMPOUNDS
MAGNETIC REFRIGERATORS
MAGNETO-THERMAL EFFECTS
MECHANICAL PROPERTIES
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
REFRIGERATORS
SPECIFIC HEAT
TERNARY ALLOY SYSTEMS
THERMODYNAMIC PROPERTIES