Magnetic actuators require reproducible, small-scale approaches for controlling the magnetic field gradient and direction used to drive the actuation. Here a system of two control magnets is designed to generate the local magnetic fields that ...

Amorphous magnetic alloys with large perpendicular magnetic anisotropy (PMA) have emerged as a suitable material choice for spintronic memory and high-frequency non-reciprocal devices on-chip. Unlike ferromagnets, ferrimagnets offer faster switching dynamics, lower net saturation magnetization, ...

Rare-earth iron garnets with large magnetic gyrotropy, made with reduced thermal budgets, are ideal magneto-optical materials for integrated isolators. However, reduced thermal budgets impact Faraday rotation by limiting crystallization, and characterization of crystallinity is limited ...

Magnetic nanowires (MNWs) were explored as potential magnetic tags for cell detection with giant magnetoresistance (GMR) biosensors based on a handheld system. Due to size, shape anisotropy and higher moment materials, the signal detected from ...

Multi-layers of Co20Fe60B20 and Pt with large perpendicular magnetic anisotropies (PMA), comparable to those obtained with the more widely utilized Ta/CoFeB/MgO heterostructures, are reported. CoFeB thickness of approximately 0.8 nm is necessary to maximize PMA ...

Passive optical isolators are needed in silicon photonics but unavailable due to challenges in rare-earth iron garnet processing and integration. Material challenges include incompatibility with silicon and high annealing temperatures, and design challenges include a ...

Optical isolators are unidirectional devices that employ the magneto-optical (MO) property of iron garnets to block the reflected light in almost all optical systems. Sputter deposition of either doped yttrium iron garnets (YIG) with seed-layers ...

Tunable non-reciprocal components with ferrites that can be integrated using a foundry suitable process are key to achieving low-power adaptive microwave circuits. The current state-of-the-art still relies on electrical tuning or resistive absorbers to facilitate ...

Monolithic optical isolators that provide polarization diversity, dimensional (500 nm core) matching to on-chip lasers and magnetless operation have been realized with “one step” seedlayer-free garnet in a non-reciprocal mode conversion design.

Novel seed-layer free cerium-doped terbium iron garnet with high gyrotropy is grown on non-garnet substrates for integration with photonics integrated circuits, whose performance can be tuned by varying the dopant concentration and annealing parameters.

Amorphous magnetic alloys have been at the forefront in the development of magnetic random-access memory due to their favorable perpendicular magnetic anisotropies (PMA) and deterministic read/write mechanisms with magnetoresistance and spin-orbit torques. While amorphous ferromagnets ...

Tunable perpendicular magnetic anisotropy (PMA) in thin film magnetic devices provides an isotropic in-plane permeability, necessary for integrated microwave and mm-wave devices and an opportunity to break inversion symmetry that allows implementations of non-reciprocal devices ...

Rare-earth iron garnet thin films have advanced the development of on-chip non-reciprocal photonic and prototype spintronic devices due to their large Faraday rotations and spin diffusion lengths, respectively. However, non-epitaxial garnets deposited using pulsed laser ...

Integrating rare-earth iron garnets with silicon structures for non-reciprocal photonic devices is rife with challenges specific to material processing. In this work, we present the integration of a seed-layer free garnet for TE mode waveguide ...