Alexey Tarabarov According to the VSM curve you provided, your Fe3O4 modified nanoparticles have a lower saturation magnetization (Ms) and a higher coercivity (Hc). This means that your nanoparticles are smaller or have a more disordered surface layer.
Alexey Tarabarov The VSM hysteresis loop indicates that the Fe3O4 modified nanoparticles exhibit paramagnetic behavior, indicating they are uniformly dispersed throughout the sample.
Alvena Shahid thank you. I found out that many papers are quite controvesial about what type of magnetism their nanoparticles have, especially if we consider paramagnetic, supermagnetic and superparamagnetic.
If you are looking for better proof or evidence of your magnetic samples, I suggest that you take first-order reversal curve (FORC) analysis. We perform this analysis and other magnetic measurements for researchers affordably. Please contact me or visit our website if you need more information. Email: [email protected]; https://mdkmag.com/