Force-gradient detected nuclear magnetic resonance

Sean R. Garner, Seppe Kuehn, Jahan M. Dawlaty, Neil E. Jenkins, John A. Marohn

Research output: Contribution to journalArticle

Abstract

The nuclear magnetic resonance (NMR) was detected in GaAs by selecting inverting 71Ga spins to create a local force gradients which shifts the mechanical resonance frequency of a nearby magnetic tipped microcantilever. A magnetic moment sensitivity of 7.5×10 -21 J/T which was equal to the Curie law magnetization from 7.1×10 8 71Ga spins, was demonstrated by employing a low spring constant cantilever at 4.4 K and 7 T. It was observed that the magnetic moment sensitivity increases by decreasing the magnet diameter and tip sample separation. The results show that their is a need to spin lock sample magnetization during detection.

Original languageEnglish (US)
Pages (from-to)5091-5093
Number of pages3
JournalApplied Physics Letters
Volume84
Issue number25
DOIs
StatePublished - Jun 21 2004
Externally publishedYes

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gradients
nuclear magnetic resonance
magnetic moments
resonant vibration
magnetization
sensitivity
magnets
shift

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Garner, S. R., Kuehn, S., Dawlaty, J. M., Jenkins, N. E., & Marohn, J. A. (2004). Force-gradient detected nuclear magnetic resonance. Applied Physics Letters, 84(25), 5091-5093. https://doi.org/10.1063/1.1762700

Force-gradient detected nuclear magnetic resonance. / Garner, Sean R.; Kuehn, Seppe; Dawlaty, Jahan M.; Jenkins, Neil E.; Marohn, John A.

In: Applied Physics Letters, Vol. 84, No. 25, 21.06.2004, p. 5091-5093.

Research output: Contribution to journalArticle

Garner, SR, Kuehn, S, Dawlaty, JM, Jenkins, NE & Marohn, JA 2004, 'Force-gradient detected nuclear magnetic resonance', Applied Physics Letters, vol. 84, no. 25, pp. 5091-5093. https://doi.org/10.1063/1.1762700
Garner SR, Kuehn S, Dawlaty JM, Jenkins NE, Marohn JA. Force-gradient detected nuclear magnetic resonance. Applied Physics Letters. 2004 Jun 21;84(25):5091-5093. https://doi.org/10.1063/1.1762700
Garner, Sean R. ; Kuehn, Seppe ; Dawlaty, Jahan M. ; Jenkins, Neil E. ; Marohn, John A. / Force-gradient detected nuclear magnetic resonance. In: Applied Physics Letters. 2004 ; Vol. 84, No. 25. pp. 5091-5093.
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