Magnon Valves Based on YIG/NiO/YIG All-Insulating Magnon Junctions

Abstract

As an alternative angular momentum carrier, magnons or spin waves can be utilized to encode information and breed magnon-based circuits with ultralow power consumption and non-Boolean data processing capability. In order to construct such a circuit, it is indispensable to design some electronic components with both long magnon decay and coherence length and effective control over magnon transport. Here we show that an all-insulating magnon junctions composed by a magnetic insulator (MI1)/antiferromagnetic insulator (AFI)/magnetic insulator (MI2) sandwich (Y3Fe5O12/NiO/Y3Fe5O12) can completely turn a thermogradient-induced magnon current on or off as the two Y3Fe5O12 layers are aligned parallel or anti-parallel. The magnon decay length in NiO is about 3.5~4.5 nm between 100 K and 200 K for thermally activated magnons. The insulating magnon valve (magnon junction), as a basic building block, possibly shed light on the naissance of efficient magnon-based circuits, including non-Boolean logic, memory, diode, transistors, magnon waveguide and switches with sizable on-off ratios.

arXiv comment9 pages, 7 figures

References in corpus (21)

• The building blocks of magnonics
• Long distance transport of magnon spin information in a magnetic insulator at room temperature
• Theory of magnon-driven spin Seebeck effect
• Theory of the Spin Seebeck Effect
• Antiferromagnonic Spin Transport from Y${}_3$Fe${}_5$O${}_{12}$ into NiO
• Longitudinal Spin Seebeck Effect Free from the Proximity Nernst Effect
• Magnon spin transport driven by the magnon chemical potential in a magnetic insulator
• Intrinsic Spin Seebeck Effect in Au/YIG
• Spin-current probe for phase transition in an insulator
• Enhanced spin pumping efficiency in antiferromagnetic IrMn thin films around the magnetic phase transition
• Conduction of spin currents through insulating oxides
• Magnon Valve Effect Between Two Magnetic Insulators
• Spin colossal magnetoresistance in an antiferromagnetic insulator
• Observation of magnon-mediated current drag in Pt/yttrium iron garnet/Pt(Ta) trilayers
• Spin Transport in Antiferromagnetic Insulators Mediated by Magnetic Correlations
• Ferroic collinear multilayer magnon spin valve
• Two-Fluid Theory for Spin Superfluidity in Magnetic Insulators
• The effect of inserted NiO layer on spin-Hall magnetoresistance in Pt/NiO/YIG heterostructures
• Independence of spin-orbit torques from the exchange bias direction in Ni${}_{81}$Fe${}_{19}$/IrMn bilayers
• Thermally-driven spin torques in layered magnetic insulators
• Separation of inverse spin Hall effect and anomalous Nernst effect in ferromagnetic metals

Cited by in corpus (11)

• Modulation of magnon spin transport in a magnetic gate transistor
• Strain-Tuned Magnetic Anisotropy in Sputtered Thulium Iron Garnet Ultrathin Films and TIG/Au/TIG Valve Structures
• Magnetic coupling in Y${}_3$Fe${}_5$O${}_{12}$/Gd${}_3$Fe${}_5$O${}_{12}$ heterostructures
• Damping enhancement in coherent ferrite/insulating-paramagnet bilayers
• Comparison of spin-wave transmission in parallel and antiparallel magnetic configurations
• Ellipticity and Dissipation Effects in Magnon Spin Valves
• Electric field control of magnons in magnetic thin films: ab initio predictions for 2D metallic heterostructures
• Probing magnetic anisotropy and spin-reorientation transition in 3D antiferromagnet, Ho${}_{0.5}$Dy${}_{0.5}$FeO${}_3|$Pt using spin Hall magnetoresistance
• Functionalized high-speed magnon-polaritons resulting from the magnetic antenna effect
• Leveraging symmetry for an accurate spin-orbit torques characterization in ferrimagnetic insulators
• Voltage-Controlled Magnonic Spin Tunneling Junction