Exchange Bias in Bulk Mn Rich Ni–Mn–Sn Heusler Alloys

Authors

Mahmud Khan, Southern Illinois University Carbondale
Igor Dubenko, Southern Illinois University Carbondale
Shane Stadler, Southern Illinois University Carbondale
Naushad Ali, Southern Illinois University Carbondale

Comments

© 2007 American Institute of Physics

Published in Journal of Applied Physics, Vol. 102 No. 11 (2007) at doi: 10.1063/1.2818016

Abstract

An experimental study on the exchange bias properties of bulk polycrystalline Ni₅₀Mn_50−xSn_x Heusler alloys has been performed. Martensitic transformations have been observed in the alloys for some critical Sn concentrations. The alloys, while in their respective martensitic phases, are found to exhibit exchange bias effect. Shifts in hysteresis loops of up to 225 Oe were observed in the 50 kOe field cooled samples. The observed exchange bias behavior in Ni₅₀Mn_50−xSn_x is attributed to the coexistence of antiferromagnetic and ferromagnetic exchange interactions in the system.

Recommended Citation

Khan, Mahmud, Dubenko, Igor, Stadler, Shane and Ali, Naushad. "Exchange Bias in Bulk Mn Rich Ni–Mn–Sn Heusler Alloys." (Dec 2007).