caa a22 4500 528786350 20190926031400.0 cr unu---uuuuu 180924s2016 xx s 000 0 eng 10.3929/ethz-b-000124186 doi 10.1038/ncomms13702 doi (ETHRESEARCH)oai:www.research-collection.ethz.ch:20.500.11850/124186 Dynamic nuclear magnetic resonance field sensing with part-per-trillion resolution [Elektronische Daten] [Simon Gross, Christoph Barmet, Benjamin E. Dietrich, David O. Brunner, Thomas Schmid, Klaas P. Prüssmann] Open access ethresearch High-field magnets of up to tens of teslas in strength advance applications in physics, chemistry and the life sciences. However, progress in generating such high fields has not been matched by corresponding advances in magnetic field measurement. Based mostly on nuclear magnetic resonance, dynamic high-field magnetometry is currently limited to resolutions in the nanotesla range. Here we report a concerted approach involving tailored materials, magnetostatics and detection electronics to enhance the resolution of nuclear magnetic resonance sensing by three orders of magnitude. The relative sensitivity thus achieved amounts to 1 part per trillion (10−12). To exemplify this capability we demonstrate the direct detection and relaxometry of nuclear polarization and real-time recording of dynamic susceptibility effects related to human heart function. Enhanced high-field magnetometry will generally permit a fresh look at magnetic phenomena that scale with field strength. It also promises to facilitate the development and operation of high-field magnets. Creative Commons Attribution 4.0 International http://creativecommons.org/licenses/by/4.0 ethresearch Gross Simon joint author Barmet Christoph joint author Dietrich Benjamin E. joint author Brunner David O. joint author Schmid Thomas joint author Prüssmann Klaas P. joint author Nature Communications London : Nature Publishing 7, p. 13702 http://hdl.handle.net/20.500.11850/124186 text/html WWW-Backlink auf das Repository (Open access) 1 Journal Article ethresearch ETHRESEARCH 856 40 http://hdl.handle.net/20.500.11850/124186 text/html WWW-Backlink auf das Repository (Open access) ETHRESEARCH 700 1- Gross Simon joint author ETHRESEARCH 700 1- Barmet Christoph joint author ETHRESEARCH 700 1- Dietrich Benjamin E. joint author ETHRESEARCH 700 1- Brunner David O. joint author ETHRESEARCH 700 1- Schmid Thomas joint author ETHRESEARCH 700 1- Prüssmann Klaas P. joint author ETHRESEARCH 773 0- Nature Communications London : Nature Publishing 7, p. 13702 BK010053 XK010053 XK010000 ETHRESEARCH ETHRESEARCH ETHRESEARCH Journal Article Open access