Fig. 5From: Heating Efficiency of Triple Vortex State Cylindrical Magnetic Nanoparticlesa Temperature-time curves of NiFe MNPs under a magnetic field strength of 47.8 kAm− 1 (600 Oe) and frequency of 360 kHz, while the MNP length d increased from 150 to 350 nm. b Theoretical SAR values for NiFe MNPs, with d = 150–350 nm and l = 500 nmBack to article page