Department of Physics, University College of Science, M L Sukhadia University, Udaipur, India.
J Phys Condens Matter. 2010 Nov 10;22(44):446001. doi: 10.1088/0953-8984/22/44/446001. Epub 2010 Oct 22.
The spin-dependent electron momentum densities in Ni(2)MnIn and Ni(2)Mn(1.4)In(0.6) shape memory alloy using magnetic Compton scattering with 182.2 keV circularly polarized synchrotron radiation are reported. The magnetic Compton profiles were measured at different temperatures ranging between 10 and 300 K. The profiles have been analyzed mainly in terms of Mn 3d electrons to determine their role in the formation of the total spin moment. We have also computed the spin polarized energy bands, partial and total density of states, Fermi surfaces and spin moments using full potential linearized augmented plane wave and spin polarized relativistic Korringa-Kohn-Rostoker methods. The total spin moments obtained from our magnetic Compton profile data are explained using both the band structure models. The present Compton scattering investigations are also compared with magnetization measurements.
利用 182.2keV 圆偏振同步辐射的磁 Compton 散射，研究了 Ni(2)MnIn 和 Ni(2)Mn(1.4)In(0.6)形状记忆合金中的自旋相关电子动量密度。在 10 到 300K 的不同温度下测量了磁 Compton 谱。这些谱主要是根据 Mn 3d 电子进行分析的，以确定它们在总自旋矩形成中的作用。我们还使用全势线性化增广平面波和自旋极化相对论 Korringa-Kohn-Rostoker 方法计算了自旋极化能带、部分和总态密度、费米面和自旋矩。我们从磁 Compton 谱数据中得到的总自旋矩用两种能带结构模型来解释。目前的 Compton 散射研究也与磁化测量进行了比较。
