Provenzano, V.
, Shapiro, A.
, King, T.
, Canavan, E.
, Shirron, P.
, DiPirro, M.
and Shull, R.
(2004),
Peak Magnetocaloric Effects in Al-Gd-Fe Alloys, Journal of Applied Physics, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=853308
(Accessed April 25, 2024)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Peak Magnetocaloric Effects in Al-Gd-Fe Alloys
Published
Author(s)
, , T T. King, E R. Canavan, P Shirron, M J. DiPirro,
Abstract
The magnetocaloric properties of several AlxGdyFez (with x+y+z=100) ternary alloys have been determined between 2-300 K. Three distinct peaks in the magnetic entropy change Sm vs T were found: a low temperature peak (near 10 K), an intermediate temperature peak (80-160 K) and a higher temperature peak (210-280 K). The low temperature peak coincides with a field-induced antiferromagnetic-to-ferromagnetic (AF/FM) transition; the intermediate and high temperature peaks are associated with other magnetic transitions. In fact, above 60 K these alloys exhibited superparamagnetic behavior and were found to possess enhanced Sm values, as predicted earlier for magnetic nanocomposites.Citation
Journal of Applied Physics
Pub Type
Journals
Download Paper
Keywords
antiferromagnetic, ferromagnetic, magnetic entropy, magnetocaloric, ternary alloys
Citation
Created June 1, 2004, Updated February 17, 2017