论文标题
ni $ _ {2} $ mnga形状内存合金中异常nernst效应的温度依赖性
Temperature dependence of the anomalous Nernst effect in Ni$_{2}$MnGa shape memory alloy
论文作者
论文摘要
我们通过磁性，电子和热测量结果报告了Ni $ _ {2} $ MNGA形状存储器合金的详细研究。我们对异常的Nernst效应（ANE）的测量表明，该技术对与其他运输测量的鲜明对比的前马氏体过渡的发作非常敏感。随着ANE对费米表面的变化敏感，我们通过其嵌套特征推断出结构调制和费米表面调制之间的联系，磁场引起的应变为中介机制。
We report a detailed investigation of the Ni$_{2}$MnGa shape memory alloy through magnetic, electronic, and thermal measurements. Our measurements of the anomalous Nernst effect (ANE) reveal that this technique is very sensitive to the onset of the pre-martensitic transition in sharp contrast to other transport measurements. With the ANE being sensitive to changes at the Fermi surface, we infer on the link between the structural modulations and the modulation of the Fermi surface via its nesting features, with the magnetic field induced strain being the mediating mechanism.
