Evidence of magnetoelectronic electromagnon mediated transport in flexoelectronic heterostructures

Abstract

The superposition of atomic vibrations and flexoelectronic effect gives rise to a cross correlation between free charge carriers and temporal magnetic moment of phonons in conducting heterostructures under an applied strain gradient. The resulting dynamical coupling is expected to give rise to quasiparticle excitations called as magnetoelectronic electromagnon that carries electronic charge and temporal magnetic moment. Here, we report experimental evidence of magnetoelectronic electromagnon in the freestanding degenerately doped p-Si based heterostructure thin film samples. These quasiparticle excitations give rise to long-distance (>100um) spin transport; demonstrated using spatially modulated transverse magneto-thermoelectric and non-local resistance measurements. The magnetoelectronic electromagnons are non-reciprocal and give rise to large magnetochiral anisotropy (0.352 A-1T-1) that diminishes at lower temperatures. The superposition of non-reciprocal magnetoelectronic electromagnons gives rise to longitudinal and transverse modulations in charge carrier density, spin density and magnetic moment; demonstrated using the Hall effect and edge dependent magnetoresistance measurements, which can also be called as inhomogeneous magnetoelectronic multiferroic effect. These quasiparticle excitations are analogues to photons where time dependent polarization and temporal magnetic moment replaces electric and magnetic field, respectively and most likely topological because it manifests topological Nernst effect. Hence, the magnetoelectronic electromagnon can potentially give rise to quantum interference and entanglement effects in conducting solid state system at room temperature in addition to efficient spin transport.

References in corpus (36)

• Spin-orbit interactions of light
• Ferroelectricity in spiral magnets
• Spin Seebeck insulator
• Long distance transport of magnon spin information in a magnetic insulator at room temperature
• Observation of the Spin-Seebeck Effect in a Ferromagnetic Semiconductor
• Electrically controlled long-distance spin transport through an antiferromagnetic insulator
• Possible evidence for electromagnons in multiferroic manganites
• Spin polarization of the quantum spin Hall edge states
• Geometrodynamics of polarized light: Berry phase and spin Hall effect in a gradient-index medium
• Dynamical Multiferroicity
• Phonon driven spin distribution due to the spin-Seebeck effect
• Experimental Signatures of Spin Superfluid Ground State in Canted Antiferromagnet Cr2O3 via Nonlocal Spin Transport
• Orbital magnetic moments of phonons
• Electrical magnetochiral effect induced by chiral spin fluctuations
• The Spin Nernst effect in Tungsten
• Long-distance spin-transport across the Morin phase transition up to room temperature in ultra-low damping single crystals of the antiferromagnet α-Fe2O3
• Phonon Magnetochiral Effect
• Long-Distance Spin Transport Through a Graphene Quantum Hall Antiferromagnet
• Negative nonlocal resistance in mesoscopic gold Hall bars: Absence of giant spin Hall effect
• Chiral domain walls of Mn${}_3$Sn and their memory
• Multiferroicity induced by dislocated spin-density waves
• Polarization Transport of Transverse Acoustic Waves: Berry Phase and Spin Hall Effect of Phonons
• Dynamically induced magnetism in KTaO${}_3$
• Observation of transverse spin Nernst magnetoresistance induced by thermal spin current in ferromagnet/non-magnet bilayers
• Observation of Spin Nernst effect in Platinum
• Electromagnon dispersion probed by inelastic x-ray scattering
• A dynamical magnetic field accompanying the motion of ferroelectric domain walls
• Real-space Observation of Incommensurate Spin Density Wave and Coexisting Charge Density Wave on Cr(001) surface
• Symmetry Theory of the Flexomagnetoelectric Effect in the Magnetic Domain Walls
• Spin density wave as a superposition of two magnetic states of opposite chirality and its implications
• Large spin-Hall effect in Si at room temperature
• Spin phonon interactions and magneto-thermal transport behavior in p-Si
• Large Magnetic Moment in Flexoelectronic Silicon at Room Temperature
• Flexoelectronic doping of the degenerate silicon and the correlated electron behavior
• Generation and detection of dissipationless spin current in MgO/Si bilayer
• Spin driven emergent antiferromagnetism and metal insulator transition in nanoscale p-Si

Cited by in corpus (2)

• Oscillatory Hall effect from magnetoelectronic coupling in flexoelectronic silicon
• Interlayer charge transfer from contact electrification in conducting micro and nanoscale thin film heterostructures