Investigating the ferrimagnetic behaviour of trigonal 3C Fe7S8 nanoparticles

The magnetic properties of trigonal 3C Fe7S8 nanoparticles, synthesized via the thermal decomposition method, are investigated using temperature-dependent zero-field cooled (ZFC) and field-cooled (FC) magnetization (M-T) curves. The M-T data, recorded at 100 and 1000 Oe, reveal magnetic ordering with high Curie transition temperature (T-C > 300 K) in the specimen. The magnetization vs. applied magnetic field (M-H) data measured in the temperature range from 7 to 300 K show that the compound exhibits ferrimagnetic ordering. The values of coercivity (H-C), saturation magnetization (M-60 kOe) and remanent magnetization (M-R) appear to increase at lower measuring temperatures. As the result of increasing M-60 kOe at lower measuring temperatures, within the temperature range of 7 to 300 K, the maximum energy product (BHmax) has the highest value of 128 kG Oe at 7 K.

Automated summary

The magnetic properties of trigonal 3C Fe7S8 nanoparticles synthesized by thermal decomposition method were investigated. The results show magnetic ordering with high Curie transition temperature (T-C > 300 K) in the specimen. The compound exhibits ferrimagnetic ordering in the temperature range of 7 to 300 K, with increased coercivity (H-C), saturation magnetization (M-60 kOe), and remanent magnetization (M-R) at lower measuring temperatures. The maximum energy product (BHmax) reaches the highest value of 128 kG Oe at 7 K.