5 papers
Topological textures and emergent altermagnetic signatures in ultrathin BiFeO3
George Fratian, Maya Ramesh, Xinyan Li +23
Magnetoelectric multiferroics, materials with intrinsically coupled electric polarization and magnetic order, promise ultralow-power switching, nonvolatile memory, and energy-effic…
Anisotropic magnon transport in an antiferromagnetic trilayer heterostructure: is BiFeO an altermagnet?
Sajid Husain, Maya Ramesh, Qian Song +18
Magnons provide a route to ultra-fast transport and non-destructive readout of spin-based information transfer. Here, we report magnon transport and its emergent anisotropic nature…
Low-energy domain wall racetracks with multiferroic topologies
Arundhati Ghosal, Alexander Qualls, Yousra Nahas +13
Conventional racetrack memories move information by pushing magnetic domain walls or other spin textures with spin-polarized currents, but the accompanying Joule heating inflates t…
Colossal enhancement of spin transmission through magnon confinement in an antiferromagnet
Sajid Husain, Maya Ramesh, Xinyan Li +21
Since Felix Bloch's introduction of the concept of spin waves in 1930, magnons (the quanta of spin waves) have been extensively studied in a range of materials for spintronics, par…
Poincaré sphere engineering of dynamical ferroelectric topological solitons
Lingyuan Gao, Yijie Shen, Sergei Prokhorenko +2
Geometric representation lays the basis for understanding and flexible tuning of topological transitions in many physical systems. An example is given by the Poincaré sphere (PS)…