DQ-13: Mapping the Design Space for Heating with Magnetic Nanowires

Magnetic nanowires (MNWs) are desirable for heating applications due to their square hysteresis loops and their size which allows for tunable switching fields. However, because MNWs are readily modified, a vast design space is available when applying magnetic nanowires to different heating applications. Here, major and minor hysteresis loops have been measured for ferromagnetic nanowire arrays. These experimental results have been used to project heating rates and energy loss per cycle for nanowires depending on the equipment constraints used to heat the nanowires. These constraints include maximum frequency and applied magnetic field. In this work, these heating maps allow for informed design and fabrication of nanowires for cryopreservation applications, especially when paired with simulation. However, these heat rate maps are broadly applicable for understanding the thermal behavior of nanowires in broader applications including electronics and hyperthermia.