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The realization of the fractional quantum Hall effect with ultracold atoms in optical lattices is much sought after. Here, the authors propose a new way of obtaining fractional quantum Hall states in lattice systems by transforming a nonlocal abstract model into an implementable scheme.

Quantum Hall interferometers have proven to be a useful platform for the study of fractional statistics. Here, the authors experimentally study the effect of Coulomb interactions between bulk and edge charges on the interferometer behavior, validating previous theoretical predictions.

Ion diffusion region is an indicator of active magnetic reconnection, but it had not been detected in Jupiter’s magnetosphere previously. Here, the authors show a magnetic reconnection event in Jupiter’s inner magnetosphere that presents the detection of an ion diffusion region.

Imaging studies show that topological protection in the quantum Hall state in graphene is undermined by edge reconstruction with a dissipation mechanism that comprises two distinct and spatially separated processes—work generation and entropy generation.

A quasi-melting transfer technique enables clean, sequential transfer of graphene and hexagonal boron nitride monolayers from germanium substrates under vacuum conditions. Controlled lattice alignment yields atomically precise, wrinkle-free superlattices with tunable stacking and twist angles, enabling scalable fabrication of high-quality 2D heterostructures for advanced electronics.

Band topology of Weyl semimetals is usually predetermined by material parameters and can hardly be manipulated, and their transport properties appear at low temperature. Here, the authors modify the topology via a weak magnetic field and observe a giant anomalous Hall effect at room temperature.

Hall resistance quantization measurements in the quantum anomalous Hall effect regime on a device based on the magnetic topological insulator V-doped (Bi,Sb)₂Te₃ show that the system can provide a zero external magnetic field quantum standard of resistance.

Previous measurements of interferometers based on quantum Hall (QH) edge channels have suggested potential electron pairing effects. Here, the authors investigate the coupling between QH edge channels in graphene Aharonov-Bohm (AB) interferometers, proposing a possible single-particle explanation for the apparent interference phase jumps and AB frequency doubling.

Measurements of the thermal Hall conductance in the first excited Landau level of the quantum Hall effect show the existence of a state with non-Abelian excitations.

A study reports a dual quantum spin Hall insulator in monolayer TaIrTe₄, arising from the interplay of its single-particle topology and density-tuned electron correlations.

Strain engineering alters the topological properties of quantum spin Hall insulators, leading to potential applications in spintronics. Here the authors demonstrate that bending strain can be used to tune the spin transport properties and generate a non-zero spin current in curved in Bi/Cl/Si nanofilms.

New functionalities of two-dimensional topological insulators (2DTI) are of current scientific interest. Here, the authors show that topological protection can be lifted by pairwise coupling of 2DTI bismuthene edges in close proximity.

Artificial corrugations in bilayer graphene can produce a nonlinear anomalous Hall effect that originates from the Berry curvature dipole and a linear Hall effect that originates from a warped Rashba-like valley–orbit coupled band dispersion.

An interferometer device demonstrates the interference of fractional quantum Hall effect edge states. This is a big step towards braiding non-Abelian anyons.

The anomalous Hall (AH) effect in magnetically doped topological insulator has been elusive. Here, Liu et al. observe that the AH resistance changes sign in the Mn doped Bi₂Se₃ thin films, where bulk (surface) states contribute to positive (negative) AH components dominantly.

Twisted moiré heterostructures offer a highly tunable solid-state platform for exploring fundamental condensed matter physics. Here, the authors use scanning tunnelling microscopy to investigate the local electronic structure of the gate-controlled quantum anomalous Hall insulator state in twisted monolayer–bilayer graphene.

The superconducting proximity effect has not been experimentally demonstrated in a quantum anomalous Hall insulator. Now this effect is observed in the chiral edge state of a ferromagnetic topological insulator.

The transport behaviour of counter-propagating edge modes in the hole-conjugate fractional quantum Hall state is not fully understood. Here, by combining local noise thermometry and thermal conductance measurements, the authors show the absence of thermal equilibration on the edge at macroscopic distances.

Manipulating spin currents in graphene by the spin–orbit interaction is important for many technological developments. Here, the authors show that the presence of residual metallic adatoms in chemical vapour deposition graphene enhances its spin–orbit coupling by three orders of magnitude.

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.

There is a long-standing experimental effort to observe field-induced correlated states in three-dimensional materials. Here, the authors observe an unconventional Hall response in the quantum limit of the bulk semimetal HfTe₅ with a plateau-like feature in the Hall conductivity.

In general, heating increases disorder and leads to the loss of magnetism in condensed matter. Here, the authors demonstrate that a normal metal can be magnetized by applying a temperature gradient during non-uniform heating when attached to a magnetic insulator.

Spin transport properties of magnetically ordered materials have been well studied. Here, the authors report an anomalous spin signal exhibiting spin transport over 480 microns in the frustrated hyperkagome magnetic insulator Gd₃Ga₅O₁₂.

Three tunable quantum Hall broken-symmetry states in charge-neutral graphene are identified by visualizing their lattice-scale order with scanning tunnelling microscopy and spectroscopy.

The quantum anomalous Hall effect is a recently demonstrated chiral transport phenomenon arising in magnetically doped topological insulators. Here, the authors study the Hall plateau switching and universal phase diagram of the quantum anomalous Hall effect in thin films of two-dimensional Cr-doped (BiSb)₂Te₃.

The APOE-ε4 allele is the strongest genetic risk factor for late-onset Alzheimer’s disease, but it is not deterministic. Here, the authors show that common genetic variation changes how APOE-ε4 influences cognition.

Conducting polymers and other organic conductors enable emerging applications in bioelectronics, neuromorphic computing, energy storage and thermoelectric devices. This Review examines their charge transport physics at high carrier densities, including how complex microstructure, electron–electron interactions and electron–dopant counterion interactions govern transport behaviour.

Polycrystalline thin films of elemental bismuth exhibit a room-temperature nonlinear transverse voltage due to geometric effects of surface electrons that is tunable and can be extended to efficient high-harmonic generation at terahertz frequencies.

Spin-hall nano-oscillators have potential for use in neuromorphic computing applications. Normally they are based around combination platinum and permalloy. Here, the authors combine a permalloy ferromagnet with a low magnetic damping ferrimagnet, leading to significantly improved performance.

A heterodimensional superlattice consisting of an alternating array of a two-dimensional material and a one-dimensional material shows unconventional octahedral stacking and an unexpected room-temperature anomalous Hall effect.

Here the authors compare genetic testing strategies in rare movement disorders, improve diagnostic yield with genome analysis, and establish CD99L2 as an X-linked spastic ataxia gene, showing that CD99L2–CAPN1 signaling disruption likely drives neurodegeneration.

Experiments show that when driven by electric currents, magnetic skyrmions experience transverse motion due to their topological charge — similar to the conventional Hall effect experienced by charged particles in a perpendicular magnetic field.

Exploring photon-polariton interactions advances not only the understanding of polariton dynamics but also the modern technologies. Here the authors take advantage of strong coupled magnons and microwave photons in a cross-cavity to achieve tunable cavity magnon polariton transport which can be potentially applied as logic devices.

The inferior heterojunction quality and misaligned energy levels at the buffer/absorber layer hinders development of antimony selenosulfide solar cells. Here, authors introduce low-work-function tantalum pentoxide dielectric layer for field-effect passivation, achieving device efficiency of 10.95%.

The lack of net magnetization in antiferromagnets makes them technologically promising, but it also makes detecting the spin orders challenging. Here, using electrical transport measurement, Song et al show how the planar Hall effect can detect different cluster magnetic multipoles in antiferromagnetic Nd₂Ir₂O₇ film.

Interferometers can probe the wave-nature and exchange statistics of indistinguishable particles. Quantum Hall interferometers from graphite-encapsulated graphene heterostructures now enable the observation of the Aharonov–Bohm effect and of robust fractional quantum Hall states.

Previous studies of skyrmions in thin film architectures have shown widely-varying magnitudes of the topological Hall effect. Here, Raju et al. show that this variation follows a power-law behaviour driven by chiral spin fluctuations at the phase transition between isolated and lattice skyrmions.

Controllable and scalable phase transition of transition metal chalcogenides is challenging. Using in situ microscopic analysis, a non-stoichiometric phase transition from PdTe₂ to PdTe is observed on the atomic scale, providing mechanistic insights into the scalable phase engineering of transition metal chalcogenide films and heterostructures.

Kagome metals continue to attract interest due to the coexistence of electronic correlations and band topology. Here the authors use proton gating to modulate disorder and carrier density in CsV₃Sb₅ nanoflakes, and show its effect on superconductivity, charge density wave and anomalous Hall effect.

Out-of-plane polarized spin current generated by the Weyl semimetal tantalum iridium telluride can be used to achieve the field-free switching of the perpendicular magnetic anisotropy ferromagnet cobalt iron boron at room temperature.

Electrical transport measurements reveal that Co₃Sn₂S₂ is probably a magnetic Weyl semimetal, and hosts the highest simultaneous anomalous Hall conductivity and anomalous Hall angle. This is driven by the strong Berry curvature near the Weyl points.