Specific absorption rate (SAR in W g⁻¹) and time taken to reach the threshold temperature (T_th: 43 °C) by Ni_xZn_1−xFe₂O₄ nanoparticles.

	C = Hf = 5 × 109 A m−1 s−1 (human tolerable range)
	1z (x: 0.0)	2z (x: 0.25)		3z (x: 0.5)	4z (x: 0.75)
NP conc.	50 mg ml−1 (<50 mg ml−1 not shown)	2 mg ml−1	7 mg ml−1	2 mg ml−1	2 mg ml−1
Time taken to reach Tth	Unable to reach even after 30 min	Unable to reach within 30 min	13 min	11 min	1.5 min
SAR (W g−1)	—	—	19	75	347
ILP (nH m2 kg−1)	—	—	0.25	0.99	4.6