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Quantum condensates may penetrate from one material to another due to the proximity effect. Here, Stolyarov et al. report the spatial evolution of quantum vortices from a superconducting Nb layer to a 50 nanometer thick diffusive metallic Cu-film, which is quite thick away from the interface.

Magnetic atoms embedded in a niobium selenide superconductor are shown to give rise to a long-range coherent bound state extending tens of nanometres.

Josephson vortices are circulating supercurrents with an inner structure that is challenging to probe experimentally. Scanning tunnelling microscopy now shows that such vortices contain non-superconducting cores.

Josephson vortices (JVs) play an important role in superconducting quantum devices, but they remain difficult to be observed and manipulated. Here, Dremov et al. report magnetic fingerprint of JVs in magnetic force microscopy experiments, which paves a way to generate and control JVs.

Controlling the motion and pinning of vortices is essential for developing superconducting electronics. Here, the authors reveal the vortex pinning nano-network in thin superconducting niobium films by developing a scanning quantum vortex microscopy approach.

Developing cryogenic memory is a crucial undertaking in advancing superconducting logic systems. Here, the authors demonstrate the realization of a superconducting memory cell, whose state is encoded by the number of current vortices within a Josephson junction, and the readout employs microwave currents for an energy-efficient, non-destructive process.

Topological insulators with ordered moments of embedded magnetic atoms are viable platforms for quantum electronics, but the practical applications are restricted by the size of their crystals. The authors synthesize a Z2 topological insulator Ge_xMn_1-xBi₂Te₄ in the form of a large crystal with high structural perfection and tunable magnetic and electronic properties.

The interplay between ferromagnetism and superconductivity plays an important role in trying to understand the mechanisms of superconductivity in iron-based pnictides. Here, the authors investigate a phenomenon called intertype superconductivity which appears due to a crossover from type II to type I between the superconducting transition temperature and magnetic ordering one.

Doping 2D materials is an effective way to engineer a wide range of properties of interest from catalysis to quantum bits. Here, the authors investigate Br-doped 2H-MoTe₂ using electron spin resonance and scanning tunneling spectroscopy, demonstrating that the dopant-orbitals hybridise to the Q-valleys of the conduction band and produce long-lived spin states protected by spin-valley locking.

Topological insulators in contact with a superconductor could house unusual physical states such as Majorana fermions. Here, the authors fabricate and report the  electron-transport characteristics of Josephson junctions built using a nanoscale topological insulator, finding evidence for ballistic transport in the surface states of the nanocrystals.