A Study on to understand Diluted Magnetic Semiconductors

PHYSICS

The utilization of both the charge and spin of electrons in electrical devices is known as "spin electronics," and DMSs play a crucial role in this field. Focusing on atomistic spin computations, this research examines how the geometrical characteristics of semiconductors affect their structural and magnetic properties. Stability is not seen because of the vast size of the system when it is reduced to a few nanometers. Using the Monte Carlo technique and the Heisenberg Hamiltonian VAMPIRE program, we theoretically investigate the magnetic characteristics of CoZnO materials in terms of size and shape effects. We find that magnetic disorder and temperature-dependent magnetization in Co-doped ZnO are governed by the material's size and shape. The research focuses on dilute magnetic semiconductors (DMS) such as Ga1−xMnxAs These are important components of semiconductor spintronics. They may be utilized as spin injectors and magnetic sensors thanks to their ferromagnetic characteristics. Therefore, we place emphasis on learning about the magnetic characteristics and establishing a solid method for calculating Curie temps from scratch. By bringing together first-principles calculations with statistical approaches like Monte Carlo simulations, we have built a theoretical framework for determining critical temperatures.

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