Tailoring thermomagnetic properties in Pb(Zr_0.52Ti_0.48)O₃–Ni_(1−x)Zn_xFe₂O₄

ABSTRACT

The effect of Zn content on magnetocaloric effect (MCE) in Pb(Zr_0.52Ti_0.48)O₃–Ni_(1−x)Zn_xFe₂O₄ (PZT-NZF) with x = 0, 0.20, 0.30, 0.40 and 0.50 were investigated by phenomenological model. The results show that MCE for PZT-NZF is enhanced with low Zn content. However, for high Zn content samples, MCE for PZT-NZF decreases with Zn. In addition, MCE in PZT-NZF is tunable with Zn content and extends in highly temperature range. It is recommended that that MCE in PZT-NZF is beneficial for magnetic refrigeration for in high temperature.

KEYWORDS:

• Magnetocaloric effect
• phenomenological model
• magnetic entropy
• relative cooling power