Chiral Pumping of Spin Waves
arXiv:1908.09141 · doi:10.1103/PhysRevLett.123.247202
Abstract
We report a theory for the coherent and incoherent chiral pumping of spin waves into thin magnetic films through the dipolar coupling with a local magnetic transducer, such as a nanowire. The ferromagnetic resonance of the nanowire is broadened by the injection of unidirectional spin waves that generate a non-equilibrium magnetization in only half of the film. A temperature gradient between the local magnet and film leads to a unidirectional flow of incoherent magnons, i.e., a chiral spin Seebeck effect.
6+9 pages, 2+3 figures
References in corpus (21)
- Introduction to Quantum Noise, Measurement and Amplification
- Enhanced Gilbert Damping in Thin Ferromagnetic Films
- Spin Caloritronics
- Chiral Quantum Optics
- Nonlocal magnetization dynamics in ferromagnetic heterostructures
- Spin Seebeck insulator
- The building blocks of magnonics
- Long distance transport of magnon spin information in a magnetic insulator at room temperature
- Chiral nanophotonic waveguide interface based on spin-orbit coupling of light
- Theory of magnon-driven spin Seebeck effect
- Ultra-low magnetic damping of a metallic ferromagnet
- Magnon spin transport driven by the magnon chemical potential in a magnetic insulator
- Linear-response theory of spin Seebeck effect in ferromagnetic insulators
- Nanometre-scale probing of spin waves using single electron spins
- Spin wave nonreciprocity for logic device applications
- Spin waves in coupled YIG/Co heterostructures
- Magnetization oscillations and waves driven by pure spin currents
- Excitation of unidirectional exchange spin waves by a nanoscale magnetic grating
- Gilbert Damping in Magnetic Multilayers
- Chiral excitation of spin waves in ferromagnetic films
- Surface dynamics of rough magnetic films
Cited by in corpus (25)
- Cavity Magnonics
- Magnetic resonance imaging of spin-wave transport and interference in a magnetic insulator
- Chirality as Generalized Spin-Orbit Interaction in Spintronics
- Magnon Accumulation in Chirally Coupled Magnets
- Unidirectional Pumping of Phonons by Magnetization Dynamics
- Nonlocal detection of interlayer three-magnon coupling
- Circulating cavity magnon polaritons
- Chiral coupling of magnons in waveguides
- Non-Hermitian coherent coupling of nanomagnets by exchange spin waves
- Efficient Gating of Magnons by Proximity Superconductors
- Sensing chiral magnetic noise via quantum impurity relaxometry
- Imaging spin-wave damping underneath metals using electron spins in diamond
- Dissipative Spin-wave Diode and Nonreciprocal Magnonic Amplifier
- Magnon Trap by Chiral Spin Pumping
- Directional excitation of a high-density magnon gas using coherently driven spin waves
- Nonreciprocal surface magnetoelastic dynamics
- Non-Contact Spin Pumping by Microwave Evanescent Fields
- Electrical spectroscopy of the spin-wave dispersion and bistability in gallium-doped yttrium iron garnet
- Electromagnetic Proximity Effect: Superconducting Magnonics and Beyond
- Multifunctional operation of the double-layer ferromagnetic structure coupled by a rectangular nanoresonator
- Nonreciprocal Spin Waves Driven by Left-Hand Microwaves
- Control of the phase of reflected spin-waves from magnonic Gires-Tournois interferometer of subwavelength width
- Chiral Magnonic Resonators: Rediscovering the Basic Magnetic Chirality in Magnonics
- Resonant subwavelength control of the phase of spin waves reflected from a ferromagnetic film edge
- Chiral Magnons: Mechanisms and Research Progress