Exotic Phenomena in Highly Frustrated Magnetic Systems

高度受挫磁系统中的奇异现象

• 批准号: 194088-2012
• 负责人: Gingras, Michel
• 金额: $ 4.44万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=593678
• 关键词: Exotic; Phenomena; Highly; Frustrated; Magnetic

In physics, frustration arises when several microscopic interactions compete and cannot be simultaneously satisfied to minimize the classical energy of the system. Physical systems with strongly competing, or frustrated, interactions are ubiquitous. Examples include nuclear matter in neutron stars, proteins, biological membranes and magnetic materials. Most of the fundamental principles that govern equilibrium collective phenomena in non-frustrated systems of Nature have been discovered over the years through experimental and theoretical studies of "conventional" (non-frustrated) magnetic systems. Likewise, one expects that studies of highly frustrated magnets will lead us to uncover the principles at work in systems with strongly competing interactions. It is the goal of this research program to contribute to our knowledge in the field of frustrated magnetism and to do so by explaining complex phenomena at play in real frustrated magnetic materials and by predicting novel effects that motivate new experimental studies and hence contribute to drive the field forward.

在物理学中，当几个微观相互作用竞争并且不能同时满足以最小化系统的经典能量时，就会出现挫折。具有强烈竞争或挫败的相互作用的物理系统是普遍存在的。例子包括中子星中的核物质、蛋白质、生物膜和磁性材料。大多数的基本原则，管理平衡集体现象的非挫折系统的性质已经发现了多年来通过实验和理论研究的“常规”（非挫折）磁系统。同样，人们期望对高度受挫的磁体的研究将使我们揭示在具有强烈竞争相互作用的系统中起作用的原理。这是这个研究计划的目标，以促进我们的知识领域的挫折磁性，并通过解释复杂的现象在发挥真实的挫折磁性材料，并通过预测新的影响，激励新的实验研究，从而有助于推动该领域的前进。