中文摘要：

研究了Pd（Pt）掺杂对Ni50Mn36Sn14Tx（T=Pd,Pt）合金的相变和交换偏置效应的影响.研究表明,通过掺杂Pd（Pt）使Ni50-xMn36Sn14Tx（T=Pd,Pt）产生一定的负化学压力可以诱导中间马氏体转变.随着施加磁场的增强,中间马氏体相变减弱甚至被抑制;同时,当进一步增加Pd（Pt）的含量（x=3对Pd;x=2对Pt）,中间马氏体转变同样消失.另外一个有趣的结果是,随着Pd（Pt）含量的增加交换偏置效应逐渐增强,这可能是由于Pd（Pt）原子比Ni具有更强的自旋轨道耦合所产生.

英文摘要：

The authors of this paper studied the phase transitions and exchange bias of Ni50-xMn36Sn14Tx（T=Pd,Pt; x=0, 1, 2, 3）alloys. An intermartensitic transition（IMT）, which was not observed in Ni50Mn36Sn14 alloy, was in-duced by the proper application of negative chemical pressure by Pd（Pt） doping in Ni50-xMn36Sn14Tx（T=Pd, Pt） al-loys. IMT weakened and was suppressed with the increase of applied field. It also disappeared with the furtherincrease of Pd（Pt） content（x=3 for Pd and x=2 for Pt）. Another striking result is that the exchange bias effect isnotably enhanced by nonmagnetic Pd（Pt） addition. The increase of unidirectional anisotropy by the addition of Pd（Pt） impurities with strong spin-orbit coupling was explained by Dzyaloshinsky-Moriya interactions in thespin-glass phase.