Nanomechanical detection of nuclear magnetic resonance using a silicon nanowire oscillator

John M. Nichol; Eric R. Hemesath; Lincoln J. Lauhon; Raffi Budakian

doi:10.1103/PhysRevB.85.054414

Nanomechanical detection of nuclear magnetic resonance using a silicon nanowire oscillator

Other Condensed Matter 2015-05-30 v1 Instrumentation and Detectors

Authors: John M. Nichol , Eric R. Hemesath , Lincoln J. Lauhon , Raffi Budakian

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Abstract

We report the use of a silicon nanowire mechanical oscillator as a low-temperature nuclear magnetic resonance force sensor to detect the statistical polarization of 1H spins in polystyrene. Under operating conditions, the nanowire experienced negligible surface-induced dissipation and exhibited a nearly thermally-limited force noise of 1.9 aN^2/Hz in the measurement quadrature. In order to couple the 1H spins to the nanowire oscillator, we have developed a new magnetic resonance force detection protocol which utilizes a nanoscale current-carrying wire to produce large time-dependent magnetic field gradients as well as the rf magnetic field.

Keywords

nanomechanical detection nuclear magnetic resonance silicon nanowire oscillator magnetic resonance force microscopy statistical polarization low-temperature sensor

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@article{arxiv.1108.3263,
  title  = {Nanomechanical detection of nuclear magnetic resonance using a silicon nanowire oscillator},
  author = {John M. Nichol and Eric R. Hemesath and Lincoln J. Lauhon and Raffi Budakian},
  journal= {arXiv preprint arXiv:1108.3263},
  year   = {2015}
}

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14 pages, 5 figures

Nanomechanical detection of nuclear magnetic resonance using a silicon nanowire oscillator

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