Systematic Control of the Interlayer Exchange Coupling in Perpendicularly Magnetized Synthetic Antiferromagnets
Teng Xu, Jiahao Liu, Xichao Zhang, Qihan Zhang, Hengan Zhou, Yiqing Dong, Pierluigi Gargiani, Manuel Valvidares, Yan Zhou, Wanjun Jiang
Abstract
Controlling the interlayer exchange coupling in synthetic antiferromagnets (SAFs) is crucial for realizing spintronic phenomena and devices. Here researchers investigate such control in Pt/Co/Ru/Fe${}_{0.55}$Tb${}_{0.45}$ by tuning the thicknesses of various layers. Complementary measurements using three techniques show that SAFs with different magnetization-reversal characteristics may be clearly resolved. The results suggest that the interlayer exchange coupling may be tuned effectively in this manner, which could be quite useful for designing SAF-based magnetic memory or sensing devices.
Topics & Concepts
Coupling (piping)SpintronicsPerpendicularMaterials scienceCondensed matter physicsInductive couplingMagnetization reversalMagnetizationExchange biasNanotechnologyOptoelectronicsFerromagnetismMagnetic anisotropyPhysicsMagnetic fieldMetallurgyGeometryMathematicsQuantum mechanicsMagnetic properties of thin filmsMultiferroics and related materialsMagnetic and transport properties of perovskites and related materials