10 papers
Robust control over polar skyrmion bubble density with a combined optical and electrical approach
Lingyuan Gao, Laurent Bellaiche
Polar skyrmion bubbles are nanoscale ferroelectric domain configurations with swirling polarization textures, and often emerge in ferroelectric oxide systems. Owing to their inhomo…
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…
Electrically switchable non-relativistic Zeeman spin splittings in collinear antiferromagnets
Longju Yu, Hong Jian Zhao, Laurent Bellaiche +1
Magnetic or electrical manipulation of electronic spin is elementary for spin-based logic, computing, and memory, where the latter is a low-power manipulation scheme. Rashba-like s…
Theory of polarization-switchable electrical conductivity anisotropy in nonpolar semiconductors
Hong Jian Zhao, Yanchao Wang, Laurent Bellaiche +1
The anisotropic propagation of particles is a fundamental transport phenomenon in solid state physics. As for crystalline semiconductors, the anisotropic charge transport opens nov…
The nature of polar distortions in ferroelectrics
Hong Jian Zhao, Laurent Bellaiche, Yanming Ma
Polar distortion, the collective off-center displacements of atoms, is a fingerprint of a ferroelectric that governs its properties and functionalities. Since the 1970s, the concep…