NQR Studies of the Structure of Glasses and Crystalline Compounds

Author:

Bray P. J.1,Lee DongHoon1,Mao De Gen1,Petersen G. L.1,Feller S. A.2,Bain D. L.2,Feil D. A.2,Pandikuthira Ponnappa2,Nijhawan Sumit2

Affiliation:

1. 1Department of Physics, Brown University, Providence, RI USA 02912

2. 2Department of Physics, Coe College, Cedar Rapids, Iowa, USA 52402

Abstract

AbstractPure nuclear quadrupole resonance (NQR) spectroscopy at low frequencies (down to 275 kHz) has been used to investigate a number of borate, aluminate, and vanadate crystalline compounds and borate glasses. The values of the quadrupole coupling constants (Qcc) and asymmetry parameters (η) are obtained with error limits that are one or two orders of magnitude less than those for values obtained from NMR spectra. New sites, not resolved in NMR spectra, have been detected for boron in borate glasses.

Publisher

Walter de Gruyter GmbH

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy,Mathematical Physics

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