Topological phases in polar oxide nanostructures

J Junquera, Y Nahas, S Prokhorenko, L Bellaiche… - Reviews of Modern …, 2023 - APS
The past decade has witnessed dramatic progress related to various aspects of emergent
topological polar textures in oxide nanostructures displaying vortices, skyrmions, merons …

Electric field control of chirality

P Behera, MA May, F Gómez-Ortiz, S Susarla… - Science …, 2022 - science.org
Polar textures have attracted substantial attention in recent years as a promising analog to
spin-based textures in ferromagnets. Here, using optical second-harmonic generation …

Experimental demonstration of an electrostatic orbital angular momentum sorter for electron beams

AH Tavabi, P Rosi, E Rotunno, A Roncaglia, L Belsito… - Physical review …, 2021 - APS
The component of orbital angular momentum (OAM) in the propagation direction is one of
the fundamental quantities of an electron wave function that describes its rotational …

Anisotropic Ferroelectricity in Polar Vortices

P Behera, AM Ross, N Shanker… - Advanced …, 2024 - Wiley Online Library
The exotic polarization configurations of topologically protected dipolar textures have
opened new avenues for realizing novel phenomena absent in traditional ferroelectric …

Sequestration of histidine kinases by non-cognate response regulators establishes a threshold level of stimulation for bacterial two-component signaling

GD Sankhe, R Raja, DP Singh, S Bheemireddy… - Nature …, 2023 - nature.com
Bacterial two-component systems (TCSs) consist of a sensor histidine kinase (HK) that
perceives a specific signal, and a cognate response regulator (RR) that modulates the …

The emergence of three-dimensional chiral domain walls in polar vortices

S Susarla, S Hsu, F Gómez-Ortiz… - Nature …, 2023 - nature.com
Chirality or handedness of a material can be used as an order parameter to uncover the
emergent electronic properties for quantum information science. Conventionally, chirality is …

Real-space visualization of atomic displacements in a long-wavelength charge density wave using cryogenic 4D-STEM

H Ni, WR Meier, H Miao, AF May, BC Sales, JM Zuo… - Physical Review …, 2024 - APS
EuA l 4, a known skyrmion magnet, represents a class of materials that show complex
electronic behaviors involving long-wavelength charge density wave (CDW). Here we …

Uncovering polar vortex structures by inversion of multiple scattering with a stacked Bloch wave model

SE Zeltmann, SL Hsu, HG Brown, S Susarla… - Ultramicroscopy, 2023 - Elsevier
Nanobeam electron diffraction can probe local structural properties of complex crystalline
materials including phase, orientation, tilt, strain, and polarization. Ideally, each diffraction …

Symmetry-aware recursive image similarity exploration for materials microscopy

TNM Nguyen, Y Guo, S Qin, KS Frew, R Xu… - npj Computational …, 2021 - nature.com
In pursuit of scientific discovery, vast collections of unstructured structural and functional
images are acquired; however, only an infinitesimally small fraction of this data is rigorously …

Extended Field Interactions in Poisson's Equation Revision

MJ Pinheiro - Applied Sciences, 2024 - mdpi.com
This investigation introduces a new variational approach to refining Poisson's equation,
enabling the inclusion of a broader spectrum of physical phenomena, particularly in the …