title: Rotational Resonance in milli-tesla fields detected by Field Cycling NMR.
abstract: Rotational Resonance (R(2)) between different spin Zeeman levels in samples of adamantane C(10)H(16) (homonuclear R(2)) and a mixture of C(10)H(16) and C(10)D(16) (both homonuclear and heteronuclear R(2)) has been studied. A Field Cycling NMR instrument was used to match the external field frequency ν(0) to a fixed frequency of sample rotation ν(r) at ν(r) = 40, 50 or 60 kHz. Rotational Resonance is observed at rational frequency ratios of ν(0)/ν(r), such as 12, 23, 32 and 1. The method may prove to become a useful tool for the determination of spin-spin distances in condensed matter.
authors.affiliation: Institut für Festkörperphysik, TU Darmstadt, Hochschulstr 6, 64289 Darmstadt, Germany. stefan.reutter@physik.tu-darmstadt.de
authors.forename: S
authors.initials: S
authors.lastname: Reutter
authors.forename: A
authors.initials: A
authors.lastname: Privalov
authors.forename: G
authors.initials: G
authors.lastname: Buntkowsky
authors.forename: F
authors.initials: F
authors.lastname: Fujara