Publikationsrepositorium - Helmholtz-Zentrum Dresden-Rossendorf
1 PublikationAnalytical balance-based Faraday magnetometer
Riminucci, A.; Uhlarz, M.; de Santis, R.; Herrmannsdörfer, T.
Abstract
We introduce a Faraday magnetometer based on an analytical balance in which we were able to apply magnetic fields up to 0.14 T. We calibrated it with a 1mm Ni sphere previously characterized in a superconducting quantum interference device (SQUID) magnetometer. The proposed magnetometer reached a theoretical sensitivity of 3x 10-8 Am2. We demonstrated its operation on magnetic composite scaffolds made of poly(e-caprolactone)/iron-doped hydroxyapatite. To confirm the validity of the method, we measured the same scaffold properties in a SQUID magnetometer. The agreement between the two measurements was within 5% at 0.127 T and 12% at 24mT. With the addition, for a small cost, of a permanent magnet and computer controlled linear translators, we were thus able to assemble a Faraday magnetometer based on an analytical balance, which is a virtually ubiquitous instrument. This will make simple but effective magnetometry easily accessible to most laboratories, in particular, to life sciences ones, which are increasingly interested in magnetic materials.
Beteiligte Forschungsanlagen
- Hochfeld-Magnetlabor (HLD)
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Journal of Applied Physics 121(2017), 094701
DOI: 10.1063/1.4977719
ISSN: 0021-8979
Cited 9 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-25309