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

Journal Article · Mon Jan 10 00:00:00 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), Vol. 64:2; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

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