Quantitative vectorial magnetic imaging of multi domain rock forming minerals using nitrogen-vacancy centers in diamond
| Autor: | E. Farchi, Nir Bar-Gill, D. Farfurnik, Ron Shaar, G. Haim, Yael Ebert |
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| Rok vydání: | 2017 |
| Předmět: |
Microscope
010504 meteorology & atmospheric sciences FOS: Physical sciences engineering.material 010502 geochemistry & geophysics 01 natural sciences law.invention Dendrite (crystal) Magnetization law Vacancy defect Mesoscale and Nanoscale Physics (cond-mat.mes-hall) Electrical and Electronic Engineering 0105 earth and related environmental sciences Physics Quantum Physics Magnetic moment Condensed Matter - Mesoscale and Nanoscale Physics Resolution (electron density) Diamond Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Computational physics Magnetic field engineering Quantum Physics (quant-ph) |
| DOI: | 10.48550/arxiv.1705.03346 |
| Popis: | Magnetization in rock samples is crucial for paleomagnetometry research, as it harbors valuable geological information on long term processes, such as tectonic movements and the formation of oceans and continents. Nevertheless, current techniques are limited in their ability to measure high spatial resolution and high-sensitivity quantitative vectorial magnetic signatures from individual minerals and micrometer scale samples. As a result, our understanding of bulk rock magnetization is limited, specifically for the case of multi-domain minerals. In this work, we use a newly developed nitrogen-vacancy magnetic microscope, capable of quantitative vectorial magnetic imaging with optical resolution. We demonstrate direct imaging of the vectorial magnetic field of a single, multi-domain dendritic magnetite, as well as the measurement and calculation of the weak magnetic moments of an individual grain on the micron scale. These results pave the way for future applications in paleomagnetometry and for the fundamental understanding of magnetization in multi-domain samples. |
| Databáze: | OpenAIRE |
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