Exchange bias in bulk Mn rich Ni-Mn-Sn Heusler alloys
Exchange bias in bulk Mn rich Ni-Mn-Sn Heusler alloys
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DOI：
10.1063/1.2818016
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发表时间：
2007-12-01
影响因子：
3.2
通讯作者：
Ali, Naushad
中科院分区：
文献类型：
--
作者：
Khan, Mahmud;Dubenko, Igor;Ali, Naushad
对大块多晶Ni50Mn50-xSnx Heusler合金的交换偏置性能进行了实验研究。在某些临界锡浓度下，合金中观察到马氏体相变。合金在各自的马氏体相中表现出交换偏置效应。在50 kOe场冷却样品中观察到高达225 Oe的磁滞回线位移。在Ni50Mn50-xSnx中观察到的交换偏置行为归因于系统中反铁磁和铁磁交换相互作用的共存。(c) 2007年美国物理学会。
An experimental study on the exchange bias properties of bulk polycrystalline Ni50Mn50-xSnx 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 Ni50Mn50-xSnx is attributed to the coexistence of antiferromagnetic and ferromagnetic exchange interactions in the system. (c) 2007 American Institute of Physics.