. 2021 Mar 15;8(3):38. doi: 10.3390/bioengineering8030038
© 2021 by the authors.
Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Figure 1.
Low (a) and high (b) power spectra of Fe3O4.