Gen 7 Spintronic Reader
The Industry's Smallest, Most Sensitive Magnetic Field Sensor
It's called tunneling magnetoresistance. This happens when the electrical resistance of a magnetic tunnel junction (MTJ) changes depending on the relative orientation of magnetic layers separated by an insulating barrier. Leveraging this phenomenon allows for high-resolution magnetic readback, crucial for accurately reading smaller, densely packed bits.
It includes the free layer (FL) sensitive to external magnetic fields from recorded data, the reference layer (RL) with stable magnetic orientation, and the synthetic antiferromagnet to prevent the RL's magnetic orientation from influencing the FL.
Using specialized magnetic sensors, the reader detects changes in the magnetic field as the read head passes over recorded bits. This ensures precise reading from the intended track while minimizing crosstalk from adjacent tracks, enabling precise readback from the superlattice platinum-alloy media.
This manufacturing process remains under continuous vacuum to avoid contamination, with precise control over each layer's thickness. Materials and layer thicknesses provide thermal stability. The magnesium oxide barrier layer in the tunnel junction undergoes controlled oxidation for optimal sensitivity.
What Is Mozaic 3+, How Does It Work, and What Can It Do for My Data Center?
Seagate's Mozaic 3+ white paper details a breakthrough in data storage, featuring HAMR technology for unparalleled areal density per disk, enabling future-ready, high-capacity hard drives.
Why Does Areal Density Matter in the Data Center?
Learn how areal density relates to increased storage capacity and greater efficiency resulting in measurable overhead savings.
Mozaic 3+ Hard Drive Platform: Where the Future Is Read and Written
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Seagate Exos® CORVAULT™ is a high-performing block storage system with multi-petabyte capacity, five-nines availability, hyperscale efficiencies, and breakthrough self-healing, sustainable technology.
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Discover Exos Mozaic 3+, where mass capacity, unprecedented areal density, and proven performance combine for storage that’s hyper-efficient and more sustainable than ever.
