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A superconducting diode bridge based on superconducting diodes can function as a full-wave rectifier with an efficiency up to 42 ± 5%, and can offer alternating current to direct current signal conversion capabilities at frequencies up to 40 kHz.

When molecules of a phenalenyl derivative, which has no net spin, are deposited on a ferromagnet, they develop into a magnetic supramolecular layer with spin-filtering properties; this could be the basis for a new approach to building molecular magnetic devices.

Magnetic insulators can provide large effective Zeeman fields that are confined at the interface. Here the authors use spin-filter tunnel junctions to directly probe the exchange-induced spin splitting and show that by tuning the energy profiles the spin and charge flow can be controlled.

Future spintronic devices may exploit topological insulators, bulk insulators with unique spin-momentum locked conductive surface states. Here, the authors demonstrate the detection of thermally-generated spin currents in a ferromagnetic-insulator/topological-insulator heterostructure.

Emergent phenomena at the interface between a topological insulator and a ferromanget reflect broken symmetry of topological state. Here, Lee et al. report direct measurement of induced magnetism at the Bi₂Se₃-EnS interface, paving the way to understand emergent orders in topological material with broken time reversal symmetry.

It is now shown that femtosecond optical excitation can be used as a tool to investigate the spin-polarization properties of half-metals, and provide a clear distinction between those and metals. Such knowledge is of fundamental importance for the use of these materials in spintronics applications.

Topological crystalline insulators are characterized by metallic states originating from crystal symmetries. A transistor device that takes advantage of the quantum properties of the topological crystalline insulating materials SnTe and Pb_1−xSn_xSe(Te) is now proposed.

Copper and manganese have been engineered to show magnetism at room temperature in thin films interfaced with organic molecules. The findings show promise for developing new magnetic materials. See Letter p.69

The combined magnetic and thermoelectric properties of nanostructures have recently attracted considerable attention. It is now demonstrated that the Seebeck coefficient in a magnetic tunnelling junction is strongly dependent on the magnetic configuration.

Chromium tellurides are a particularly promising family of quasi-2D magnetic materials; towards the single van der Waals layer limit, they preserve magnetic ordering, some even above room temperature, and exhibit a variety of intrinsic topological properties. Here, Hang Chi, Yunbo Ou and co-authors demonstrate a strain tunable Berry curvature induced reversal of the anomalous Hall effect in Cr₂Te₃.

Excitons are created when a carbon nanotube absorbs photons. However, the triplet exciton is usually optically inactive, preventing its direct observation, lowering photocurrent efficiency and making optical injection of spin-polarized carriers impossible. Optical excitation of the triplet exciton has now been achieved.

A magnetic exchange field confined within graphene and higher than 14 T, an enhancement of the spin generation, and a ferromagnetic ground state are found in the graphene/EuS heterostructure—a model of a 2D-material/magnetic-insulator system.

An almost ideal quantum anomalous Hall state is observed in (Bi,Sb)Te films doped with vanadium. This state is reached without the application of a polarizing magnetic film, making these materials interesting for low-power electronic applications.

Two distinct topological states that are closely tied to the spin configurations of a layered compound, here MnBi₂Te₄, have been demonstrated. Such control of the topological state should enable new opportunities to realize quantum and spintronic devices.

A new design for reprogrammable microprocessors based on single magnetoresistive elements has the potential to thrust magnetoelectronics from journal concept to everyday product.

Although some transition metal oxide-based electrodes exhibit high storage capacities beyond theoretical values, the underlying physicochemical mechanism remains elusive. Surface capacitance on metal nanoparticles involving spin-polarized electrons is now shown to be consistent with a space charge mechanism.

Coupling a ferromagnetic insulator to a topological insulator induces a robust magnetic state at the interface, resulting from the large spin-orbit interaction and the spin-momentum locking property of Dirac fermions, and leads to an extraordinary enhancement of the magnetic ordering (Curie) temperature.

Spin-polarized tunnelling data show that the breakdown of antiferromagnetic order and the collapse of the spectral gap are not correlated in Sr₂IrO₄. This indicates that short-range magnetic correlations are not behind the emergence of the pseudogap.