Simultaneous measurement of very small magnetic fields and spin-lattice relaxation.
A field cycling (FC) NMR experiment is presented which allows for the simultaneous determination of very small magnetic fields down to about 3 μT and the concomitant measurement of nuclear spin-lattice relaxation times in these fields. The technique will enable broadband spin-lattice relaxation dispersion experiments down to about 100 Hz (1)H Larmor frequency. Limitations of its applicability are discussed.
Institut für Festkörperphysik, TU Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany. Electronic address: benjamin.kresse@physik.tu-darmstadt.de.
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Kresse
Institut für Festkörperphysik, TU Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany.
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Privalov
Experimentalphysik II, Universität Bayreuth, 95440 Bayreuth, Germany.
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Herrmann
Experimentalphysik II, Universität Bayreuth, 95440 Bayreuth, Germany.
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Hofmann
Experimentalphysik II, Universität Bayreuth, 95440 Bayreuth, Germany.
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Rössler
Institut für Festkörperphysik, TU Darmstadt, Hochschulstr. 6, 64289 Darmstadt, Germany.
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Fujara
FC NMR; Relaxometry; Small Larmor frequencies