UNDOPhase: UNcertainty-DOminated Phase Transitions in Magnetic Materials
Abstract
Quantifying the effects of physical drivers that control ferromagnetic-paramagnetic phase transition mechanisms in magnetic materials is essential for the robust design of magneto-mechanical systems in extreme environments. The transition behavior is determined by external magnetic fields and temperature, and their interactions with magnetic spins. Paramagnetic and ferromagnetic phases have distinct magnetic aspects and demonstrate different material properties. There are three important gaps in the state-of-the-art understanding of the ferromagnetic-paramagnetic phase transition behavior, which this project aims to address. First, the existing theoretical knowledge is focused on simplified modeling and investigation of the magnetic and thermal parameters, where only the nearest-neighbor magnetic spin interactions are taken into account. Experiments have already hypothesized that the phase transition onset is significantly influenced by high-order correlations of magnetic spins and other long-range effects (i.e., grain boundaries and dislocations). However, there is no systematic study that quantifies the comprehensive effects of the interactions among the temperature, magnetic spins, and applied magnetic fields.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 04, 2024
- Accession Number
- AD1231156
Entities
People
- Pınar Acar
Organizations
- Virginia Tech