Current induced spin-orbit effective magnetic fields in metal/ferromagnet/oxide trilayers provide a new way to manipulate the magnetization, which is an alternative to the conventional current induced spin transfer torque arising from noncollinear magnetization. Ta/CoFeB/MgO structures are expected to be useful for non-volatile memories and logic devices due to its perpendicular anisotropy and ...

We discuss the effects of thermal noise on magnetic response a lateral ferromagnetic Josephson junction with spin-orbit coupling and out-of-plane magnetization. The direction moment in layer can be inverted by using controlled current pulses. This phenomenon is due to magnetoelectric effect that couples flowing charge magnetization ferromagnet. investigate reversal versus intrinsic parameters f...

Abstract Kramers Weyl semimetals are that have points pinned at the time reversal invariant momenta. Recently it has been discovered all chiral crystals host momenta, so metals with lattice symmetry belong to category of semimetals. In this work, we show due symmetry, unique longitudinal magnetoelectric effect in which charge current induced spin and orbital magnetization is parallel direction ...

This paper presents a novel variable flux memory motor (VFMM) with series–parallel configuration that employs constant-magnetization permanent magnet (CPM) high coercivity and variable-magnetization (VPM) low coercivity. The CPMs in the proposed VFMM are arranged parallel. Therefore, they share an air gap. Meanwhile, VPMs series respect to CPMs, as well each other. CPM-induced magnetic field no...

Electricity arises from the flow of electron charge, ferromagnetism from the ordering of electron spins. The interactions between electricity and ferromagnetism have been crucial to our technological development over the last centuries: the magnetic fields generated by electrical currents and the voltages generated by moving magnets are two cornerstones of our modern lifestyle. Important applic...

The present study focuses on investigating the magnetic properties and the critical particle size for developing sizable spontaneous magnetic moment of bare Au nanoparticles. Seven sets of bare Au nanoparticle assemblies, with diameters from 3.5 to 17.5 nm, were fabricated with the gas condensation method. Line profiles of the X-ray diffraction peaks were used to determine the mean particle dia...

The interpretation of magnetic field data at low magnetic latitudes is difficult because the vector nature of the magnetic field increases the complexity of anomalies from magnetic rocks. The most obvious approach to this problem is to reduce the data to the magnetic pole, where the presumably vertical magnetization vector will simplify observed anomalies. However, RTP requires special treatmen...

We present a detailed study on domain imaging, Kerr effect magnetometry (MOKE) and magnetoresistance (MR), for a series of 20 nm Co73.8Fe16.2B10 thin films, both as-deposited (amorphous) and annealed (crystalline). By considering the two different (orthogonal) in-plane magnetization components, obtained by MOKE measurements, we were able to study the uniaxial anisotropy induced during CoFeBdepo...

We study the excitation of spin waves in magnetic insulators by the current-induced spin-transfer torque. We predict preferential excitation of surface spin waves induced by an easy-axis surface anisotropy with critical current inversely proportional to the penetration depth and surface anisotropy. The surface modes strongly reduce the critical current and enhance the excitation power of the cu...

Abstract Spin Hall effect, an electric generation of spin current, allows for efficient control magnetization. Recent theory revealed that orbital effect creates which can be much larger than spin-Hall-induced current. However, current cannot directly exert a torque on ferromagnet, requiring conversion process from to Here, we report two effective methods the through spin-orbit coupling enginee...