U.S.-Mexico Cooperative Research: Theoretical Study of Surfaces and Magnetic Alloys

美墨合作研究：表面和磁性合金的理论研究

• 批准号: 9114645
• 负责人: Juan Sanchez
• 金额: $ 1.51万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-03-01 至 1994-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9114645&HistoricalAwards=false
• 关键词: U.S.; Mexico; Cooperative; Research; Theoretical

This award will support a U.S.-Mexico scientific collaboration between Professor Juan Sanchez of the the University of Texas, Austin and Professors J. L. Moran Lopez and F. Mejia Lira of the Physics Department of the University of San Luis de Potosi, Mexico. The purpose of this collaboration is the characterization of magnetic interactions and of planar defects, such as surfaces, on alloy phase stability. Several real and model alloy systems will be investigated using the cluster variation method of statistical mechanics, from which accurate configurational free energies may be calculated. The collaboration builds on previously successful efforts initiated over five years ago working on alloy phase stability. As a result of these prior efforts, the researchers have identified the following areas of common interest and mutual benefit: phase equilibrium in magnetic alloys; surface phenomena in close-packed structures; ordering phenomena in superconducting ceramics; and thermodynamics of small metallic clusters.

该奖项将支持德克萨斯大学奥斯汀分校的Juan Sanchez教授与墨西哥圣路易斯大学物理系的J. L. Moran Lopez教授和F. Mejia Lira教授之间的美墨科学合作。这次合作的目的是表征磁相互作用和平面缺陷，如表面，合金相稳定性。本文将用统计力学的簇变分方法研究几种实际的和模型的合金体系，由此可以计算出精确的构型自由能。此次合作建立在五年前开始的合金相稳定性方面的成功努力的基础上。由于这些先前的努力，研究人员已经确定了以下共同感兴趣和互利的领域：磁性合金的相平衡；密排结构中的表面现象；超导陶瓷中的有序现象；以及小金属团簇的热力学。