<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Influence of nuclear moments on the decay of dielectric polarization echoes in glasses at low temperatures"^^ . "This thesis investigates the influence of nuclear moments on the decay of dielectric two-pulse polarization echoes in glasses at low temperatures based on twelve samples. \r\nSeveral samples, containing atoms carrying nuclear moments, show a very fast decay of the echo amplitude at short times, which can be attributed to a nuclear moment based relaxation. A detailed comparison of all decay curves shows, that the modulation of the quadrupole coupling constant during the tunneling motion is the decisive parameter for a significant contribution of a nuclear moment based relaxation. \r\nFor the glass HY-1, the additional Zeeman splitting in a magnetic field reduces the influence of the nuclear moment based relaxation on the decay of the echo amplitude, as expected. \r\nThe observed decay behavior cannot be described by current theoretical models, indicating another relaxation mechanism related to the relaxation due to nuclear moments.\r\nTo further study the decay at very short pulse separation times, a novel setup, based on planar microfabricated superconducting resonators, was developed. This enabled for the first time pulse separation times close to the theoretical limit and the observation of the Gaussian shape like leveling-off of the echo amplitude of \r\nN-BK7 glass, as predicted by spectral diffusion theory."^^ . "2021" . . . . . . . "Andreas"^^ . "Schaller"^^ . "Andreas Schaller"^^ . . . . . . "Influence of nuclear moments on the decay of dielectric polarization echoes in glasses at low temperatures (PDF)"^^ . . . "Dissertation_Schaller.pdf"^^ . . . "Influence of nuclear moments on the decay of dielectric polarization echoes in glasses at low temperatures (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Influence of nuclear moments on the decay of dielectric polarization echoes in glasses at low temperatures (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Influence of nuclear moments on the decay of dielectric polarization echoes in glasses at low temperatures (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Influence of nuclear moments on the decay of dielectric polarization echoes in glasses at low temperatures (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Influence of nuclear moments on the decay of dielectric polarization echoes in glasses at low temperatures (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #30293 \n\nInfluence of nuclear moments on the decay of dielectric polarization echoes in glasses at low temperatures\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .