Spin-lattice relaxation in lithium-borate glass studied by β-radiation detected NMR

verfasst von

A. Schirmer, P. Heitjans, H. Ackermann, B. Bader, P. Freiländer, H. J. Stöckmann

Abstract

In the glass Li₂O·3B₂O₃ the nuclear spin-lattice relaxation behaviour of ⁸Li (T_1/2=0.84 s) and ¹²B (T_1/2=20 ms) was studied by use of the method of β-radiation detected nuclear magnetic resonance/relaxation. The transient behaviour of the polarization of both nuclear species is characterized by and exp (-{radical dot}l/T_1inh) law, which can be explained by inhomogeneous polarization averaging. The investigation of the temperature and magnetic-field dependence of the relaxation rate T_{i inh}^-1 showed a lithium motion induced increase of the relaxation rate above room temperature. The value obtained for the apparent activation energy indicates partly localized lithium diffusion.

Externe Organisation(en)

Philipps-Universität Marburg

Typ

Artikel

Journal

SOLID STATE IONICS

Band

28-30

Seiten

717-721

Anzahl der Seiten

5

ISSN

0167-2738

Publikationsdatum

09.1988

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Chemie (insg.), Werkstoffwissenschaften (insg.), Physik der kondensierten Materie

Elektronische Version(en)

https://doi.org/10.1016/S0167-2738(88)80131-0 (Zugang: Unbekannt)