Emerging memories

Which correctly describes how MRAM stores data?

  1. AThrough differences in resistance due to the magnetization direction of a magnetic tunnel junction (MTJ)
  2. BThrough differences in resistance between the crystalline and amorphous states of a chalcogenide material
  3. CThrough the presence or absence of charge stored in a capacitor
Show answer and explanation

Answer: A. Through differences in resistance due to the magnetization direction of a magnetic tunnel junction (MTJ)

MRAM uses a magnetic tunnel junction (MTJ), a thin insulating layer sandwiched between two magnetic layers. Its resistance is low when the magnetizations of the two layers are parallel and high when they are antiparallel, and this tunnel magnetoresistance effect is used to store information.

Practice this topic Back to topic

More Emerging memories questions

  1. Which correctly describes how phase-change memory (PCM) stores data?
  2. Which property does FeRAM (ferroelectric memory) use to store information?
  3. Which correctly describes how ReRAM (resistive memory) stores data?
  4. How is information written in STT-MRAM?
  5. Which correctly describes the position of 'storage-class memory'?