Our investigations show that the purple mineral is the high pressure spinel polymorph of olivine, and for this first authentic natural occurrence we propose the name ringwoodite, in honour of the ...

NiZn spinel ferrite nanofibers with diameters in 50–100 nm were fabricated by electrospinning followed by thermal treatment. Deploying a rotating collector, nanofibers can achieve certain degree of ...

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We report an approach to control the reversible electrochemical activity (i.e., extraction/insertion) of Mg2+ in a cathode host through the use of phase-pure epitaxially stabilized thin film ...