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Showing 1 to 3 of 3 for “"Gitterbaufehler"”.
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Ferroelectric materials with interfaces : first principles calculations
Ferroelectric materials are characterized by a reversible spontaneous electric polarization in the absence of an electric field. This polarization arises from a non-centrosymmetric arrangement of the ions in the unit cell that produces an electric dipole moment. Ferroelectric materials have been …
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Einfluss der Schichteigenschaften auf das elektrische und optoelektrische Verhalten von AlGaN-GaN-HEMT-Transistoren
The mismatch of the lattice constants and of the thermal expansion coefficients between gallium nitride (GaN) and its substrates like sapphire, silicon and silicon carbide is responsible for a high concentration of defects in AlGaN/GaN layers. The influence of these electrically active centres …
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Orientierungsabhängigkeit und Größeneffekte bei der Nanoindentierung von Einkristallen
Simple cubic (NiAl), body-centered cubic (Fe-3%Si) and face-centered cubic (copper) single crystals of the orientations (001), (011), (111) and (112) as well as hexagonal magnesium samples with (0001)- and orthogonal oriented grains were produced, prepared and investigated by the means of a …