The aim of this comment paper is to discuss an incorrect approach in the investigation of the optical properties which has been presented in a published article. Also, it is pointed out that some of the reported results in the original work are erroneous.

中文翻译：

---

评论：“不同合成温度下的NiFe ₂ O ₄纳米粒子的光学和介电性能”。7（2017）3619–3623]

该评论文件的目的是讨论在发表的文章中介绍的一种不正确的光学特性研究方法。另外，还指出，原始工作中的某些报道的结果是错误的。