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Title: Boundary between the thermal and statistical polarization regimes in a nuclear spin ensemble

Abstract

As the number of spins in an ensemble is reduced, the statistical fluctuations in its polarization eventually exceed the mean thermal polarization. This transition has now been surpassed in a number of recent nuclear magnetic resonance experiments, which achieve nanometer-scale detection volumes. Here, we measure nanometer-scale ensembles of nuclear spins in a KPF{sub 6} sample using magnetic resonance force microscopy. In particular, we investigate the transition between regimes dominated by thermal and statistical nuclear polarization. The ratio between the two types of polarization provides a measure of the number of spins in the detected ensemble.

Authors:
; ; ;
Publication Date:
OSTI Identifier:
22311220
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 105; Journal Issue: 4; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; DETECTION; FLUCTUATIONS; FLUORINE COMPOUNDS; MICROSCOPY; NUCLEAR MAGNETIC RESONANCE; PHOSPHORUS COMPOUNDS; POLARIZATION; POTASSIUM COMPOUNDS; SPIN

Citation Formats

Herzog, B. E., Cadeddu, D., Xue, F., Peddibhotla, P., and Poggio, M., E-mail: martino.poggio@unibas.ch. Boundary between the thermal and statistical polarization regimes in a nuclear spin ensemble. United States: N. p., 2014. Web. doi:10.1063/1.4892361.
Herzog, B. E., Cadeddu, D., Xue, F., Peddibhotla, P., & Poggio, M., E-mail: martino.poggio@unibas.ch. Boundary between the thermal and statistical polarization regimes in a nuclear spin ensemble. United States. https://doi.org/10.1063/1.4892361
Herzog, B. E., Cadeddu, D., Xue, F., Peddibhotla, P., and Poggio, M., E-mail: martino.poggio@unibas.ch. 2014. "Boundary between the thermal and statistical polarization regimes in a nuclear spin ensemble". United States. https://doi.org/10.1063/1.4892361.
@article{osti_22311220,
title = {Boundary between the thermal and statistical polarization regimes in a nuclear spin ensemble},
author = {Herzog, B. E. and Cadeddu, D. and Xue, F. and Peddibhotla, P. and Poggio, M., E-mail: martino.poggio@unibas.ch},
abstractNote = {As the number of spins in an ensemble is reduced, the statistical fluctuations in its polarization eventually exceed the mean thermal polarization. This transition has now been surpassed in a number of recent nuclear magnetic resonance experiments, which achieve nanometer-scale detection volumes. Here, we measure nanometer-scale ensembles of nuclear spins in a KPF{sub 6} sample using magnetic resonance force microscopy. In particular, we investigate the transition between regimes dominated by thermal and statistical nuclear polarization. The ratio between the two types of polarization provides a measure of the number of spins in the detected ensemble.},
doi = {10.1063/1.4892361},
url = {https://www.osti.gov/biblio/22311220}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 4,
volume = 105,
place = {United States},
year = {Mon Jul 28 00:00:00 EDT 2014},
month = {Mon Jul 28 00:00:00 EDT 2014}
}