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The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
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Heusler compound
Videos
Heusler compounds are magnetic intermetallics with face-centered cubic or body-centered tetragonal crystal structure and a composition of XYZ or X2YZ, where X and Y are transition metals and Z is in t
A schematic of a HH thermoelectric. X and Z have a larger electronegativity difference between them and form an NaCl-type ionic sublattice while Y and
A schematic of a HH thermoelectric. X and Z have a larger electronegativity difference between them and form an NaCl-type ionic sublattice while Y and Z form a ZnS-type covalent sublattice
Electron microscope images of Cu-Mn-Al Heusler compound showing magnetic domain walls tied to APB's (a) L21 antiphase boundaries by <111> dark-field i
Electron microscope images of Cu-Mn-Al Heusler compound showing magnetic domain walls tied to APB's (a) L21 antiphase boundaries by <111> dark-field imaging - the remaining micrographs are in bright-field so that the APB's are not in contrast (b) magnetic domains by Foucault (displaced aperture) imaging, and (c) magnetic domain walls by Fresnel (defocus) imaging.
Topological insulator
Videos
A topological insulator is a material whose interior behaves as an electrical insulator while its surface behaves as an electrical conductor, meaning that electrons can only move along the surface of
Two curves or said to be homotopically equivalent if they can be smoothly deformed into one another. Every loop on the 2-sphere can be smoothly deform
Two curves or said to be homotopically equivalent if they can be smoothly deformed into one another. Every loop on the 2-sphere can be smoothly deformed into a single point, hence all looops on the 2-sphere are homotopically equivalent.