Nuclear relaxation times of Li in Li-graphitides

verfasst von

H. Estrade, J. Conard, P. Lauginie, P. Heitjans, F. Fujara, W. Buttler, G. Kiese, H. Ackermann, D. Guérard

Abstract

In stage I Li-graphitide, we try to determine the nature of interactions between Li nuclear spins and their neighborhood by variable temperature measurements of the Li nuclear spin lattice relaxation time T₁. Two methods are used: ⁷Li pulsed NMR; and β-radiation detection of ⁸Li-nuclear polarization produced by polarized neutron capture. Both methods are in qualitative agreement, but a quantitative discrepancy appears in the low-temperature range. Results are discussed in relation with several mechanisms: contact interaction and Korringa relation, quadrupolar mechanism and diffusion modulated dipolar interaction.

Externe Organisation(en)

Centre national de la recherche scientifique (CNRS)
Institut Laue-Langevin
Université de Lorraine (UL)

Typ

Artikel

Journal

Physica B+C

Band

99

Seiten

531-535

Anzahl der Seiten

5

ISSN

0378-4363

Publikationsdatum

01.1980

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Allgemeiner Maschinenbau

Elektronische Version(en)

https://doi.org/10.1016/0378-4363(80)90291-0 (Zugang: Unbekannt)