Static Nuclear Spin Polarization Induced in a Liquid by a Rotating Magnetic Field

Seung-Kyun Lee, Erwin L. Hahn, and John Clarke
Phys. Rev. Lett. 96, 257601 – Published 28 June 2006

Abstract

We demonstrate that protons in a liquid acquire a static polarization perpendicular to the plane of a rotating magnetic field. The rotating field was reduced adiabatically to zero, transforming the static polarization in the rotating frame to the laboratory frame. The application of a small magnetic field perpendicular to the polarization induced a free induction decay (FID) that was detected by a superconducting quantum interference device. The results agree with the predictions of the modified Bloch equations. The FID remained observable in the presence of magnetic material, suggesting that this technique may find practical applications.

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  • Received 18 April 2006

DOI:https://doi.org/10.1103/PhysRevLett.96.257601

©2006 American Physical Society

Authors & Affiliations

Seung-Kyun Lee*, Erwin L. Hahn, and John Clarke

  • Department of Physics, University of California, Berkeley, California 94720-7300, USA, and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

  • *Current address: Department of Physics, Princeton University, Princeton, NJ 08544, USA.

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Vol. 96, Iss. 25 — 30 June 2006

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