Study on optical and magnetic properties of FexNi1-xMn2O4 materials

DOI: 10.18173/2354-1059.2021-0007

  • Phạm Vũ Bích Hằng
  • Nguyễn Hải Yến
  • Phùng Thị Thanh Mai
  • Đặng Đức Dũng
  • Nguyễn Mạnh Hùng
  • Nguyễn Cao Khang
Keywords: NiMn2O4; FeMn2O4, spinel, sol-gel method.

Abstract

In this study, we present the process of synthesis FexNi1-xMn2O4 (x = 0; 0.1; 0.3; 0.5; 0.7; 0.9; 1) by method sol-gel. Scanning electron microscope results shows that the particle size is about 50 nm. The X-ray diffraction diagram shows that the samples are single phase, changing structure clearly as the x ratio increases from 0 to 1. The lattice constant, the bond length also changes with x-value as shown on the Raman scattering spectrum. The results of the vibrating sample magnetometer show that the magnetism of the material FexNi1-xMn2O4 changes with the value of x and reaches a maximum in the range x from 0.5 to 0.7. 

điểm /   đánh giá
Published
2021-07-21