Magnetic Properties of Graphene Structure: a Monte Carlo Simulation

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• 作者：A. Jabar ; R. Masrour
• 关键词：Graphene structure ; Monte Carlo simulation ; Critical temperature ; Magnetic hysteresis cycle
• 刊名：Journal of Superconductivity Incorporating Novel Magnetism
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：29
• 期：5
• 页码：1363-1369
• 全文大小：617 KB
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• 作者单位：A. Jabar (1)
  R. Masrour (1)
  
  1. Laboratory of Materials, Processes, Environment and Quality, National School of Applied Sciences, Cady Ayyed University, 63 46000, Safi, Morocco
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Superconductivity, Superfluidity and Quantum Fluids
  Magnetism and Magnetic Materials
  Condensed Matter
  Characterization and Evaluation Materials
  
• 出版者：Springer New York
• ISSN：1557-1947

文摘

The Monte Carlo simulation is used to study the magnetic properties of graphene structure formed by ferrimagnetic spin 5/2 and 3/2 configuration. The critical temperature is obtained for different values of exchange interactions and for different crystal fields. The total magnetization has been determinate for different values of exchange interactions, different crystal fields, and different values of temperature. The magnetic hysteresis cycle is obtained for different values of temperature, for different values of exchange interactions, and for different values of crystal fields. Graphene-based magnetoresistance sensors hold immense promise over existing sensors due to their stable performance over temperature variation, eliminating the necessity for expensive wafers or temperature correction circuitry. The potential applications for magnetic graphene would stretch broadly from information processing to medicine.