Heat-Assisted Magnetic Recording

Heat-Assisted Magnetic Recording (HAMR) is a technology that enhances data storage capacity on hard drives. It works by briefly heating the magnetic material on the disk with a tiny laser as data is written. Heating lowers the material’s resistance to magnetic change, allowing bits to be recorded more densely and reliably. Once cooled, the data is locked in place, enabling much more information to fit in the same space without sacrificing stability. HAMR thus allows for bigger, faster, and more efficient storage devices, crucial as our data needs continue to grow.