Patent ID: 8488372

Claim:
A memory device comprising: at least one magnetic random access memory (MRAM) cell including a storage layer having a storage magnetization direction; a sense layer having a sense magnetization direction; and a spacer layer disposed between the storage layer and the sense layer; and a field line magnetically coupled to the MRAM cell and configured to induce a magnetic field along a magnetic field axis, wherein the storage layer has a single magnetic anisotropy axis, wherein the single magnetic anisotropy axis is tilted relative to the magnetic field axis, wherein, during a write operation, the storage magnetization direction is switchable between m directions to store data corresponding to one of m logic states, with m>2, at least one of the m directions is aligned relative to the single magnetic anisotropy axis, and at least another one of the m directions is aligned relative to the magnetic field axis, and wherein, during a read operation, the sense magnetization direction is varied, relative to the storage magnetization direction, to determine the data stored by the storage layer.