Energy-assisted magnetic recording
Appearance
(Redirected from EAMR)
An editor has nominated this article for deletion. You are welcome to participate in the deletion discussion, which will decide whether or not to retain it. |
Energy-assisted magnetic recording (EAMR) is a disk drive recording technology which use energy (microwaves - MAMR or heat - HAMR) to increase the areal density (a higher BPI value) during writing operations by improving writability. [1][2][3] To lower the resistance of the storage medium for having its polarity changed (high coercivity), energy is applied on the recording head: electrical current in ePMR (energy-assisted perpendicular magnetic recording), a laser source for heating temporarily the disk material (HAMR), a spin-torque oscillator (STO) for microwaves (MAMR).[4][5][2][6][7]
Further reading
[edit]References
[edit]- ^ Gleitsmann, Nina (June 28, 2021). "Increased storage capacity through EAMR - Western Digital delivers the future for your hard drive".
- ^ a b "HAMR vs. MAMR, and the future of high-capacity hard drives | TechTarget". Storage.
- ^ "Energy-Assisted Magnetic Recording | 6 | Ultra-High-Density Magnetic R".
- ^ Paul, Ian (August 5, 2020). "What Is an EAMR Hard Drive, and How Does It Work?". How-To Geek.
- ^ S, Ganesh T. "Western Digital's 16TB and 18TB Gold Drives: EAMR HDDs Enter the Retail Channel". www.anandtech.com.
- ^ "What Is Microwave-assisted Magnetic Recording (MAMR)? | Pure Storage". www.purestorage.com.
- ^ https://ieeexplore.ieee.org/document/9918540