When it comes to porous metamaterials - ubiquitous, sponge-like materials used in everything from sound absorption to self-cleaning glass - it's all about how you slice it.
There is a spectrum from chemical to physical retention of ions. Researchers say acknowledging and understanding it is the key to progress for energy storage technology.
Atomically thin sheets are not necessarily uniform. They can be subject to mechanical deformation that result in defects, such as bubbles and wrinkles that occur during exfoliation and transfer. This lack of perfect flatness of individual layers forming a van der Waals heterostructure has implications for interface properties, such as those formed by metal contacts or insulating layers.
Researchers demonstrate the all-electrical generation, manipulation, and detection of spin polarization in chiral single-crystalline Tellurium nanowires. The results pave the way for the development of magnet-free chirality-based spintronic devices.
