6 papers
Unlocking Static Polarization and Strain Density Waves in Perovskites by Softening a Hidden Antiferrodistortive Tilt Gradient Mode
Yajun Zhang, Devesh R. Kripalani, Xu He +9
Spin density waves (SDWs) represent a fundamental paradigm of spatially modulated order in condensed matter systems, yet their electrical and mechanical analogues polarization and…
Mechanical coupling of polar topologies and oxygen octahedra rotations in PbTiO/SrTiO superlattices
Fernando Gómez-Ortiz, Louis Bastogne, Xu He +1
PbTiO/SrTiO artificial superlattices recently emerged as a prototypical platform for the emergence and study of polar topologies. While previous studies mainly focused on t…
Switchable Skyrmion-Antiskyrmion Tubes in Rhombohedral BaTiO and Related Materials
Fernando Gómez-Ortiz, Louis Bastogne, Sriram Anand +3
Skyrmions are stable topological textures that have garnered substantial attention within the ferroelectric community for their exotic functional properties. While previous studies…
Inhomogeneous Electric Fields for Precise Control and Displacement of Polar Textures
Fernando Gómez-Ortiz, Louis Bastogne, He Xu +1
Since the discovery of polar topological textures, achieving efficient control and manipulation of them has emerged as a significant challenge for their integration into nanoelectr…
Stacking-engineered ferroelectricity and multiferroic order in van der Waals magnets
Daniel Bennett, Gabriel MartÃnez-Carracedo, Xu He +4
Two-dimensional (2D) materials that exhibit spontaneous magnetization, polarization or strain (referred to as ferroics) have the potential to revolutionize nanotechnology by enhanc…
Orbital Order Triggered Out-of-Plane Ferroelectricity in Magnetic Transition Metal di-halide Monolayers
Xiao-Feng Luo, Xu He, Rui Wang +2
Although multiferroics have undergone extensive examination for several decades, the occurrence of ferroelectricity induced by orbital order is only scarcely documented. In this st…