HYSITS: A MATLAB Code to Process Vibrating Sample Magnetometer Data (Hysteresis Loop)

Abstract

Vibrating-sample magnetometer (VSM) is a magnetic measurement method by observing magnetic moment (M) which is a response of applying ascending and descending magnetic field (H) to the material. The data of this ascending and descending magnetic field will form a kind of loop called hysteresis loop. The hysteresis curve of each material will be different for each kind, so that this curve can be used to evaluate type and domain of magnetic mineral. This paper introduces HYSITS, a MATLAB code for analysing the magnetic hysteresis curve. We aim to provide an easy-use program, such as the feature to adjust smoothing span and increment parameter. With that the hysteresis curve analysis can be done effectively. The optimal result of the parameters adjustment can be seen from the smoothing span 10 for increment values 0,001 and 0,002 on the graph. This MATLAB code will generate 3 plots, which are hysteresis curve (magnetic moment vs. magnetic field), difference of ascending and descending magnetic moment (ΔM vs. H), and the 1st derivative of ΔM vs. H. Although HYSITS has several features that distinguishes it from its non-MATLAB predecessors, HYSITS still needs improvements so that it can be more reliable for research about magnetic hysteresis

Analysis of Vibrating Sample Magnetometer (VSM) data of Brantas river sediments using HYSITS

“…In this study, processing was carried out using VSM data with codes B-19 and B-20. The VSM data is then processed using the HYISTS Script [19], resulting in 3 curves as in Figures 4 and 5. Graph…”

“…the software used is M. Excel and MATLAB. In the data processing process, the HYSITS script developed by Erdayanti et al (2020) [19] was used. This program is in the matlab environment like the other magnetic program [20][21][22].…”

“…This study aims to analyze the VSM measurement data in the Brantas River using the HYSITS script [19]. An analysis was performed to determine the types of magnetic domains stored in the sediments of the Brantas River and the validity of the HYSITS script.…”

“…It is hoped that through this study, we can find out which magnetic minerals are stored in the sediments of the Brantas River and lay the foundation for further research on the Brantas River. Figures 2 are used as a basis for interpreting the curves generated by HYSITS [19] to determine the type of magnetic minerals.…”

HYSGUITS: A MATLAB Graphical User Interface (GUI) for hysteresis loop simulation in Vibrating-Sample Magnetometer (VSM) data

“…THERMITS [13], IRMITS [14], and PyTherNal [16]. HYSITS, a MATLAB-based program, is an example of the recent findings specifically for visualizing VSM data [15]. Three plots; the base hysteresis curve, its components' difference, and the difference's derivative, are produced for each ascending and descending curve.…”