Electron and Nuclear Magnetic Resonance in Semiconducting Phosphate Glasses

Paramagnetic vanadium-phosphate and molybdenum-phosphate glasses have been studied using electron-spin resonance and nuclear magnetic resonance. These glasses were nominally 80% MO:20% P2O5, where MO denotes the transition-metal oxide. The electron-spin-resonance results showed a strongly exchanged,...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied physics 1971-01, Vol.42 (7), p.2587-2591
Main Authors: Lynch, G. F., Sayer, M., Segel, S. L., Rosenblatt, G.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Paramagnetic vanadium-phosphate and molybdenum-phosphate glasses have been studied using electron-spin resonance and nuclear magnetic resonance. These glasses were nominally 80% MO:20% P2O5, where MO denotes the transition-metal oxide. The electron-spin-resonance results showed a strongly exchanged, narrowed interaction with V4+/V5+ and Mo5+/Mo6+ ratios and line shapes which were independent of temperature over the range 77°–300°K. Since the conductivity is nonlinear in this temperature range, the result is direct evidence that the mobility is temperature dependent and that the average paramagnetic-site is unchanged over this temperature range. The nuclear magnetic resonance of 51V and 31P in the glasses verifies the assumption of exchange narrowing. The 51V quadrupole coupling (1.5 MHz) and spin-lattice relaxation time (T1
ISSN:0021-8979
1089-7550
DOI:10.1063/1.1660593