Title :
Thermal, magnetic, and magnetoelastic data on three different Heusler alloys based on Ni-Mn-X (X=Ga, in, or Sn)
Author :
Choi, Byung Sang
Author_Institution :
Dept. of Chem., Nebraska Univ., Lincoln, NE, USA
fDate :
7/1/2006 12:00:00 AM
Abstract :
This paper reports on a study of the influence of In and Sn substitution for Ga in Ni2MnGa on the magnetism and magnetostriction in arc-melted-and-cast and directionally solidified alloys. Magnetostriction measurements were carried out from room temperature down to -125°C for these alloys. Magnetic property measurements for the stoichiometric as arc-melted-and-cast rods of Ni2MnGa, Ni2MnSn, and Ni2MnIn show room temperature Ms values of 58.8, 44.3, and 39.1 emu/g, respectively. Each of the stoichiometric alloys reveals similar magnetostrictive behavior with respect to temperature. For near-stoichiometric compositions, the behavior of magnetostriction in Ni-Mn-In and Ni-Mn-Sn is comparable to that in Ni-Mn-Ga in the directionally solidified samples.
Keywords :
gallium alloys; indium alloys; magnetoelastic effects; magnetostriction; manganese alloys; nickel alloys; thermal properties; tin alloys; FSMA; Heusler alloys; Ni2MnGa; Ni2MnIn; Ni2MnSn; arc-melted-and-cast rods; directionally solidified alloys; indium substitution; magnetic data; magnetic property measurements; magnetoelastic data; magnetostriction measurements; magnetostrictive behavior; near-stoichiometric compositions; stoichiometric alloys; thermal data; tin substitution; Gallium alloys; Iron alloys; Lattices; Magnetic field induced strain; Magnetic materials; Magnetostriction; Nickel alloys; Shape memory alloys; Temperature sensors; Tin; FSMA; Heusler alloy; Ni; magnetostriction;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.874305
