Mixed alkaline earth effect in sodium aluminosilicate glasses

Structure of Rare-Earth Aluminosilicate Glasses Probed by Solid-State NMR Spectroscopy and Quantum Chemical Calculations

Results presented in this thesis are based on the following publications, which are referred to by the corresponding roman numbers I-IV: Reprints were made with the permission from the publishers.

SPECIATION AND LOCAL STRUCTURE IN ALKALI AND ALKALINE EARTH SILICATE GLASSES: CONSTRAINTS FROM 29Si NMR SPECTROSCOPY

‘?Si NMR spectroscopy provides important contributions to the understanding of silicate glass structure. as the resonance frequency is sensitive to several aspects of the local chemical environment (including intertetrahedral bond angles. bond distances. and number of bridging oxygens per silicon atom). New data on a series of binary alkali and alkaline earth glasses are presented which highlig...

Title Laser-Induced Kondo Effect in Ultracold Alkaline-Earth Fermions

Laser-Induced Kondo Effect in Ultracold Alkaline-Earth Fermions.

We demonstrate that laser excitations can coherently induce a novel Kondo effect in ultracold atoms in optical lattices. Using a model of alkaline-earth fermions with two orbitals, it is shown that the optically coupled two internal states are dynamically entangled to form the Kondo-singlet state, overcoming the heating effect due to the irradiation. Furthermore, a lack of SU(N) symmetry in the...

The distribution of sodium ions in aluminosilicate glasses: A high-field Na-23 MAS and 3Q MAS NMR study

The local configurations around sodium ions in silicate glasses and melts and their distributions have strong implications for the dynamic and static properties of melts and thus may play important roles in magmatic processes. The quantification of distributions among charge-balancing cations, including Na in aluminosilicate glasses and melts, however, remains a difficult problem that is releva...