Robust spin-transfer torque and magnetoresistance in non-collinear antiferromagnetic junctions

Abstract

Ferromagnetic spin-valves and tunneling junctions are crucial for spintronics applications and are one of the most fundamental spintronics devices. Motivated by the potential unique advantages of antiferromagnets for spintronics, we theoretically study here junctions built out of non-collinear antiferromagnets. We demonstrate a large and robust magnetoresistance and spin-transfer torque capable of ultrafast switching between parallel and anti-parallel states of the junction. In addition, we show that the non-collinear order results in a spin-transfer torque that is in several key aspects different from the spin-transfer torque in ferromagnetic junctions.

References in corpus (29)

• Antiferromagnetic spintronics
• Antiferromagnetic spintronics
• Spin Transfer Torques
• Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems
• Electrical switching of an antiferromagnet
• Kwant: a software package for quantum transport
• Crystal Hall effect in Collinear Antiferromagnets
• Anomalous Hall effect arising from noncollinear antiferromagnetism
• Giant momentum-dependent spin splitting in centrosymmetric low Z antiferromagnets
• Efficient Electrical Spin-Splitter Based on Non-Relativistic Collinear Antiferromagnetism
• Relativistic Neel-order fields induced by electrical current in antiferromagnets
• Momentum-Dependent Spin Splitting by Collinear Antiferromagnetic Ordering
• Giant and tunneling magnetoresistance effects from anisotropic and valley-dependent spin-momentum interactions in antiferromagnets
• Spin current generation in organic antiferromagnets
• Structure determination and coexistence of superconductivity and antiferromagnetic order in (Li0.8Fe0.2)OHFeSe
• On A Proper Definition of Spin Current
• Antiferromagnetism in RuO${}_2$ as $d$-wave Pomeranchuk instability
• Spin-polarized current in non-collinear antiferromagnets
• Antidamping torque-induced switching in biaxial antiferromagnetic insulators
• Spontaneous Antisymmetric Spin Splitting in Noncollinear Antiferromagnets without Spin-Orbit Coupling
• Spin Hall effect emerging from a chiral magnetic lattice without spin-orbit coupling
• Ab-initio GMR and current-induced torques in Au/Cr multilayers
• Symmetry and the macroscopic dynamics of antiferromagnetic materials in the presence of spin-polarized current
• Spin Transfer Torque in Antiferromagnetic Spin-Valves: From Clean to Disordered Regimes
• First-principles spin-transfer torque in CuMnAs$|$GaP$|$CuMnAs junctions
• Inelastic scattering in ferromagnetic and antiferromagnetic metal spintronics
• Transport Spin Polarization of Noncollinear Antiferromagnetic Antiperovskites
• Spin diffusion and torques in disordered antiferromagnets
• Robust spin transfer torque in antiferromagnetic tunnel junctions

Cited by in corpus (12)

• Observation of plaid-like spin splitting in a noncoplanar antiferromagnet
• Néel Spin Currents in Antiferromagnets
• Antiferromagnetic Tunnel Junctions for Spintronics
• Magnetization switching in polycrystalline Mn3Sn thin film induced by self-generated spin-polarized current
• Time-dependent multistate switching of topological antiferromagnetic order in Mn${}_3$Sn
• Nearly perfect spin polarization of noncollinear antiferromagnets
• Spin-orbit torque for field-free switching in C_{3v} crystals
• Noncollinear Antiferromagnetic Spintronics
• Theory of superdiffusive spin transport in noncollinear magnetic multilayers
• Local density of states as a probe for tunneling magnetoresistance effect: application to ferrimagnetic tunnel junctions
• Antiferromagnetic nanoscale bit arrays of magnetoelectric Cr${}_2$O${}_3$ thin films
• Hall mass and transverse Noether spin currents in noncollinear antiferromagnets