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Ferromagnetism is observed at ferroelastic domain walls in strontium titanate and its heterostructures with other oxides. Applying strain can reverse the magnetism. This suggests the possibility of device engineering using domain walls.
Accurately capturing both microscopic and mesoscopic properties of fluid–gas interfaces is a long-standing challenge. Now, a microscopic theory of correlation functions that can be scaled up to explain mesoscopic surface tension phenomena is put forward.
A polariton is a hybrid excitation resulting from strong light–matter coupling. The magneto-transport measurements have now revealed the crucial role played by its electronic component.
Artificial spin-ice materials are usually described by spins that are either up or down. Here, a new type of spin ice is fabricated where the spins can be in one of three states with different coexisting phases separated by a first-order transition.
A study of how single C. elegans cells establish the polarity required for cell division reveals a general principle for pattern formation in living systems controlled by biochemical cues.
A dynamic dependency framework describes general interdependent and competitive interactions between nodes in multilayer networks and is used to study spreading phenomena.
The origin of size-dependent shifts of surface plasmon resonances in metal nanoparticles has been controversial for decades. A combined experimental and theoretical study on silver samples and their environments now provides a quantitative picture.
Large-scale numerical examination of a disordered Bose–Hubbard model in two dimensions shows entanglement based signature of many-body localization, providing answers to the challenging questions posed by recent experiments.
Photoionization is one of the most important photophysical events. This process can now be characterized in a quantum-mechanically complete manner by use of polarization-controlled extreme-ultraviolet light derived from a free-electron laser
Despite of the charge disorder, the three-dimensional antiferromagnet NaCaNi2F7 is an almost ideal realization of the spin-1 antiferromagnetic Heisenberg model on a pyrochlore lattice, showing key features of quantum spin liquid.
Evidence is provided that quantum random circuit sampling, a near-term quantum computational task, is classically hard but verifiable, making it a leading proposal for achieving quantum supremacy.
Neutron and X-ray scattering experiments show that the partly disordered material CsNiCrF6 supports multiple Coulomb phases with structural and magnetic properties dictated by underlying local gauge symmetry.
Predicting the collapse of a dynamical system by monitoring the structure of its network of interaction takes the form of stability conditions formulated in terms of a topological invariant of the network, the k-core.
A strong Hall effect is observed in a material with spin textures and strong electron correlations. This hints that correlation effects can amplify real-space topological spin transport.
Neutron and X-ray scattering studies combined with first-principles calculations suggest that the large, liquid-like ionic mobility in the canonical superionic crystal CuCrSe2 is due to anharmonic phonon dynamics.
An anomalous upturn of the critical field at low temperature observed in disordered superconductors has long puzzled researchers. A joint experimental and theoretical study suggests that the origin of the anomaly lies in the physics of vortex glasses.
Biexcitons play an important role in determining the optical properties of transition metal dichalcogenide monolayers, but their precise structure is poorly understood. Using a combination of ultrafast spectroscopy and theory, the origin of their fine structure is revealed.
An analogy with wetting has proven apt for describing how groups of cells spread on a substrate. But cells are active: they polarize, generate forces and adhere to their surroundings. Experiments now find agreement with an active update to the theory.
Multiple different types of topological states are observed in iron-based high-temperature superconductors. This suggests that these may be a good place to try and engineer high-temperature topological superconductivity.
A single-celled organism exhibits complex swimming behaviours in response to changes in light intensity. Modelling and experiments suggest that the swimmer exploits phase relations between its photoreceptor and orientation to enable navigation.