The first 2D mica resistive random access memory (RRAM) device has been demonstrated, which exhibit unique non-Markov chain characteristic. The migration of inner K+ in mica under electrical field is responsible for this unique transport behavior. Our work shows great potential of 2D mineral materials for electronics.
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IMAGE: Schematic of a single set of band interactions, where E is the band energy and EF the Fermi energy. A change in chirality or magnetization would cause a change in. view more
Credit: MPI CPfS
The electronic structure of metallic materials determines the behavior of electron transport. Magnetic Weyl semimetals have a unique topological electronic structure - the electron s motion is dynamically linked to its spin. These Weyl semimetals have come to be the most exciting quantum materials that allow for dissipationless transport, low power operation, and exotic topological fields that can accelerate the motion of the electrons in new directions. The compounds Co3Sn2S2 and Co2MnGa [1-4], recently discovered by the Felser group, have shown some of the most prominent effects due to a set of two topological bands.
Physicists at the University Bath in the UK have uncovered a new mechanism for enabling magnetism and superconductivity to co-exist in the same material.
Direct photocatalytic coupling of methanol to ethylene glycol (EG) is highly attractive. The first metal oxide photocatalyst, tantalum-based semiconductor, is reported for preferential activation of C-H bond within methanol to form hydroxymethyl radical ( CH2OH) and subsequent C-C coupling to EG. The nitrogen doped tantalum oxide (N-Ta2O5) photocatalyst is an environmentally friendly and highly stable candidate for photocatalytic coupling of methanol to EG.