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Simulation of Magnetic Anisotropy Energy Surfaces for Cubic Crystals Using MATLAB in Remote Material Physics Lectures

The physical characteristics of a crystal can be viewed from the distribution of magnetic energy contained in it so that a simulation is needed which helps in visualizing the magnetic energy of the crystals. This study aims to present a simple solution for constructing a simulation of the physical properties of cubic crystals using MATLAB software. MATLAB can also be used to help organize physics lectures remotely. This is because MATLAB can be operated by anyone, anytime, and anywhere without being connected to the internet network to help visualize the material magnetization concept in the form of 2- and 3-dimensional graphics. The simulation aims to visualize the magnetic anisotropy energy surface for cubic crystals. This simulation can visualize the magnetic anisotropy energy surface of 3 types of cubic crystals, namely simple cubic, body-centered cubic, and face-centered cubic. In this simulation, the difference between the 3 types of crystals is the anisotropy energy constant. The mathematical equations in the magnetic anisotropy energy surface for cubic crystals are quite complicated. This simulation can help students in exploring mathematical equations and studying the magnetic anisotropy energy surface for cubic crystals more. Students can also develop mathematical representation skills and creative visual representations of the magnetic anisotropy energy surface for cubic crystals. 
HIGHLIGHTS 
 
The uniaxial anisotropy energy equation is closely related to helping to realize the behavior of materials 
Visualization of magnetic anisotropy energy surfaces in a crystal is influenced by the shape of the crystal and the value of its anisotropy constant 
Physics lectures during the Covid-19 pandemic require a variety of lectures that utilize the computational program-based physics equation simulation media 
Magnetic anisotropy energy surfaces on a crystal can be visualized through the help of computational programs to support physics lectures during the Covid-19 pandemic 
MATLAB can be used to visualize magnetic anisotropy energy surfaces because it can be operated by anyone, anytime, and anywhere without being connected to the internet network 
 
GRAPHICAL ABSTRACT