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Hf1-xZrxTe5, which is expected to have high thermoelectric performance at low temperature, is investigated on polycrystals with high density. in order to examine the possibility of large enhancement of the figure of merit at low temperature, polycrystalline samples of Hf1-xZrxTe5 (x=0.0, 0.5 and 1.0) are systhesized by hot-press sintering to make high density above ~90%. Resultant polycrystals show...
When the surface energy of bottom layer is lower than top layer, the atoms of bottom layer should be pumped up at the triple point of the grain boundary. This phenomenon should be useful for the fabrication of well-defined nanobridge. To confirm the Atom Pumping-Up mechanism for metal/metal thin films, Ta(2 nm) on epitaxial MgO(001)/Fe(001) films were prepared by the electron beam deposition method...
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