Measurement of Indirect Nuclear Spin-Spin Coupling Frequencies in $YBa_{2} Cu_{3} O_{7}$

Publisher Website

14 September 1998

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 81 (11) , 2340-2343
https://doi.org/10.1103/physrevlett.81.2340

Abstract

We report a simple NMR experiment measuring individual

^{63} Cu -^{63} Cu

indirect nuclear coupling frequencies in

YBa_{2} Cu_{3} O_{7}

. We show that the coupling interaction at

T = 5 K

is of quite short range, indicating an anitferromagnetic correlation length

ξ

of

\sim 1

lattice constant or less.

Keywords

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