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Nuclear Double Resonance between Statistical Spin Polarizations

M. Poggio, H. J. Mamin, C. L. Degen, M. H. Sherwood, and D. Rugar
Phys. Rev. Lett. 102, 087604 – Published 26 February 2009
Physics logo See Synopsis: Separating oil from water with magnetic resonance force microscopy

Abstract

We demonstrate nuclear double resonance for nanometer-scale volumes of spins where random fluctuations rather than Boltzmann polarization dominate. When the Hartmann-Hahn condition is met in a cross-polarization experiment, flip-flops occur between two species of spins and their fluctuations become coupled. We use magnetic resonance force microscopy to measure this effect between H1 and C13 spins in C13-enriched stearic acid. The development of a cross-polarization technique for statistical ensembles adds an important tool for generating chemical contrast in nanometer-scale magnetic resonance.

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  • Received 12 December 2008

DOI:https://doi.org/10.1103/PhysRevLett.102.087604

©2009 American Physical Society

Synopsis

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Separating oil from water with magnetic resonance force microscopy

Published 16 March 2009

An advance in magnetic resonance force microscopy enhances its chemical sensitivity and opens up the possibility of identifying different organic substances at the nanoscale.

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Authors & Affiliations

M. Poggio1,2, H. J. Mamin1, C. L. Degen1, M. H. Sherwood1, and D. Rugar1

  • 1IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, California 95120, USA
  • 2Center for Probing the Nanoscale, Stanford University, 476 Lomita Mall, Stanford, California 94305, USA

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Issue

Vol. 102, Iss. 8 — 27 February 2009

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