TY - GEN AU - Seiler,Arnold TI - Einfluss der Leitungselektronen auf die Dynamik atomarer Tunnelsysteme in ungeordneten Festkörpern: Relaxationsprozesse in metallischen Gläsern und ungeordneten dünnen Aluminiumoxid-Schichten SN - KSP/1000087939 PY - 2019/// PB - KIT Scientific Publishing KW - ultrasonic attenuation KW - metallisches Glas KW - Ultraschall-Dämpfung KW - amorhpous solids KW - Atomare Tunnelsysteme KW - metallic glas KW - atomic tunneling systems KW - Amorphe Festkörper N1 - Open Access N2 - The speed of sound in metallic glasses and the permittivity of dielectric alumina layers show the typical low-temperature behavior of amorphous solids. Acoustic measurements from a few kHz to GHz show the influence of the conduction electrons in a massive bulk metallic glass. Measurements of the permittivity at a few kHz surprisingly show an influence of the electrons on the properties of an insulating layer UR - https://www.ksp.kit.edu/9783731508700 UR - https://directory.doabooks.org/handle/20.500.12854/45996 ER -