magnetic random access memory

electronics

Also known as: MRAM, magnetoresistive random-access memory

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Last updated

July 16, 2026

Quick Summary

Magnetic random-access memory (MRAM) is a type of non-volatile memory that stores data using magnetic polarization rather than electric charge. Unlike static RAM (SRAM) and dynamic RAM (DRAM), MRAM retains data even when power is turned off. This makes it a persistent form of memory.

Magnetic-core memory, a precursor to modern magnetic memory, used tiny magnetic toruses to store binary bits. This technology was prevalent in the 1950s and 1960s before being replaced by semiconductor memory chips. While MRAM is a more advanced technology, both utilize magnetic properties for data storage.

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nanotechnology
Information storage
Known as magnetic random access memory (MRAM), a line of electrically switchable magnetic material is separated from a permanently magnetized layer by a nanoscale nonmagnetic interlayer. A resistance change that depends on the relative alignment of the fields is read electrically from a large array of wires…
Read More
Known as magnetic random access memory (MRAM), a line of electrically switchable magnetic material is separated from a permanently magnetized layer by a nanoscale nonmagnetic interlayer. A resistance change that depends on the relative alignment of the fields is read electrically from a large array of wires…
Read More