Microtesla NMR J-coupling spectroscopy with an unshielded atomic magnetometer

Giuseppe Bevilacqua; Valerio Biancalana; Andrei Ben-Amar Baranga; Yordanka Dancheva; Claudio Rossi

doi:10.1016/j.jmr.2015.12.018

Microtesla NMR J-coupling spectroscopy with an unshielded atomic magnetometer

J Magn Reson. 2016 Feb:263:65-70. doi: 10.1016/j.jmr.2015.12.018. Epub 2016 Jan 5.

Authors

Giuseppe Bevilacqua¹, Valerio Biancalana¹, Andrei Ben-Amar Baranga², Yordanka Dancheva³, Claudio Rossi⁴

Affiliations

¹ DIISM, University of Siena, Italy.
² Dep. of Electr. and Computer Engin., Ben-Gurion University of the Negev, Israel.
³ DSFTA, University of Siena, Italy.
⁴ DBCF, University of Siena, Italy.

PMID: 26773528
DOI: 10.1016/j.jmr.2015.12.018

Abstract

We present experimental data and theoretical interpretation of NMR spectra of remotely magnetized samples, detected in an unshielded environment by means of a differential atomic magnetometer. The measurements are performed in an ultra-low-field at an intermediate regime, where the J-coupling and the Zeeman energies have comparable values and produce rather complex line sets, which are satisfactorily interpreted.

Keywords: Atomic magnetometry; Differential measurement; J-coupling; Remote detection; Trimethyl-phosphate; Ultra low field NMR.

Publication types

Research Support, Non-U.S. Gov't