Sn_1−xFe_xO₂ (x = 0.00, 0.1, 0.12, 0.16 and 0.18) nanoparticles have been synthesized by ball milling. Analyses of the Raman spectra exhibit a strong correlation between the internal structure of the nanoparticles and their electrical and magnetic properties. The blue shift in the peak position of the symmetric A_1g (630 cm⁻¹) mode as well as appearance of new two E_u modes (255 and 324 cm⁻¹) with Fe doping indicate to a formation of bridge oxygen vacancies in the nanoparticles which has been explained by Kröger–Vink notation. Oxygen vacancies make as trapping centers of the free electrons leading to an increase in the electrical resistivity. Fe doping induces another new peak at 540 cm⁻¹ assigned to vibrations related to the Fe²⁺ ions accompanied by oxygen vacancies. The strength of this Raman peak increases with increasing the concentration of Fe in a good correlation with the behavior of the magnetization of the nanoparticles.

通过球磨合成了Sn _1-x Fe _x O ₂（x = 0.00、0.1、0.12、0.16和0.18）纳米颗粒。拉曼光谱的分析显示出纳米颗粒的内部结构与其电和磁性能之间的强相关性。对称A _1g（630 cm ^-1）模式峰位置的蓝移以及新的两个E _u模式（255和324 cm ^{-1）的出现}）掺铁表明在纳米粒子中形成桥氧空位，这已由Kröger-Vink表示法进行了解释。氧空位作为自由电子的俘获中心，导致电阻率增加。Fe掺杂在540 cm ^-1处引起另一个新峰，该峰分配给与Fe ²⁺离子相关的振动以及氧空位。拉曼峰的强度随着铁浓度的增加而增加，与纳米颗粒的磁化行为具有良好的相关性。