Order-disorder transitions between glassy phases are quite common in nature and yet a detailed description of the structural changes entailed at microscopic scales remains elusive.

CaKFe4As4 and its variations are interesting recent additions to the Fe-based superconductors. This stoichiometric compound exhibits superconductivity below 35 K without chemical substitution.

In recent years, spintronic technologies, in which information is carried by spin instead of charge, have become a promising candidate for “beyond-CMOS” devices.

Valley pseudospin in atomically thin semiconductors has been proposed and pursued as an alternative information carrier to charge.

Advances in the high-tech fabrication methods have provided novel curved micro- and nanoarchitectures of superconductors, e.g., nanostructured microtubes, helical microcoils and their arrays.