Effect of interlayer exchange coupling parameter on switching time and critical current density in composite free layer
نویسندگان
چکیده
Articles you may be interested in Interlayer exchange coupled composite free layer for CoFeB/MgO based perpendicular magnetic tunnel junctions J. Thermal stability and spin-transfer switchings in MgO-based magnetic tunnel junctions with ferromagnetically and antiferromagnetically coupled synthetic free layers Appl. Effect of interlayer coupling in CoFeB/Ta/NiFe free layers on the critical switching current of MgO-based magnetic tunnel junctions
منابع مشابه
Interlayer exchange coupling across a ferroelectric barrier.
A new magnetoelectric effect is predicted originating from the interlayer exchange coupling between two ferromagnetic layers separated by an ultrathin ferroelectric barrier. It is demonstrated that ferroelectric polarization switching driven by an external electric field leads to a sizable change in the interlayer exchange coupling. The effect occurs in asymmetric ferromagnet/ferroelectric/ferr...
متن کاملSwitching magnetization by 180° with an electric field.
Magnetoelectric coupling allows for manipulating the magnetization by an external electric field or the electrical polarization by an external magnetic field. Here, we propose a mechanism to electrically induce 180° magnetization switching combining two effects: the magnetoelectric coupling at a multiferroic interface and magnetic interlayer exchange coupling. By means of first-principles metho...
متن کاملProgress in Magnetoresistive Memory: Magnetic Tunnel Junctions with a Composite Free Layer
Magnetoresistive memory is a candidate for future universal memory because of fast switching, high density, and non-volatility. However, improvement regarding the essential parameters such as thermal stability and switching current is still needed and finding alternative architectures for magnetic cell structures is of considerable importance for the success of magnetoresistive memory. A struct...
متن کاملStructural optimization of MTJs with a composite free layer [8813-95]
We investigate the switching statistics dependence on cell geometry by means of systematic micromagnetic simulations. We find that MTJs with a free layer composed of two ellipses with the axes a/2 and b inscribed into a rectangle a × b are characterized by the same switching speed and thermal stability as MTJs with a composite free layer (C-MTJs). As has been shown, the C-MTJs demonstrate a sub...
متن کاملفرضیه نوسانی دمای گذار فاز صفحات جفت شده مغناطیسی
Oscillatory behavior of transition temperature in supper lattice, Ni/Au/Ni, has been observed as a function of spacer layer, Au. The observed oscillation period is almost the half period of interlayer exchange coupling. The high temperature susceptibility of a two - dimensional lattice is evaluated within the Bethe-Peierls-Wiess approximation in the presence of a random field with square dist...
متن کامل