Studies of Quantum Magnetism with Magnetic Resonance and Thermodynamic Measurements

通过磁共振和热力学测量研究量子磁学

• 批准号: 436081-2013
• 负责人: Quilliam, Jeffrey
• 金额: $ 1.68万
• 依托单位: Université de Sherbrooke
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=552980
• 关键词: Studies; Quantum; Magnetism; Magnetic; Resonance

My group's research will primarily involve the study of magnetism in materials and will aim to expose and understand new quantum states of matter. Often this will be done by studying so-called frustrated magnets in which there is a competition between different energetic interactions so that they cannot all be simultaneously satisfied. The hope in such systems is to preclude ordinary magnetic order and obtain exotic ground states. For example, we will study frustrated materials called "spin ice" in which the basic excitations can be described as magnetic monopoles, as well as quantum spin liquid materials in which there may exist unusual quantum-entangled ground states. My group will also research materials known as multiferroics, which combine magnetism and electric polarization and may show some of the first applications for frustrated magnetism. Finally we will also study various conducting systems in which many degrees of freedom (including magnetism) and strong interactions between electrons lead to interesting quantum phases of matter.

我的小组的研究将主要涉及材料中的磁性研究，旨在揭示和理解物质的新量子态。通常，这可以通过研究所谓的受挫磁体来完成，其中不同的能量相互作用之间存在竞争，因此它们不能同时得到满足。这种系统的希望是排除普通磁序并获得奇异的基态。例如，我们将研究称为“自旋冰”的受阻材料，其中基本激发可以描述为磁单极子，以及量子自旋液体材料，其中可能存在不寻常的量子纠缠基态。我的小组还将研究称为多铁性的材料，它结合了磁性和电极化，并可能展示受挫磁性的一些首批应用。最后，我们还将研究各种传导系统，其中许多自由度（包括磁性）和电子之间的强相互作用导致了有趣的物质量子相。