Inter-american materials research: high pressure studies of quantum phase transitions by muon spin relaxation and complementary methods

美洲材料研究：通过μ子自旋弛豫和互补方法进行量子相变的高压研究

• 批准号: 342181-2007
• 负责人: Luke, Graeme
• 金额: $ 13.84万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Special Research Opportunity Program - Inter-American Collaboration in Materials Research
• 财政年份: 2008
• 资助国家: 加拿大
• 起止时间: 2008-01-01 至 2009-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=399795
• 关键词: Inter; american; materials; research; pressure

Quantum phase transitions occur between electronic phases of matter at absolute zero temperature. The study of such phase transitions is a key theme of current condensed matter physics. Hydrostatic pressure has emerged as a key parameter for tuning a system through a quantum phase transition. In this proposal we aim to build on recent advances in high pressure research to develop a unique high pressure capability for performing muon spin relaxation measurements. Muon spin relaxation is a supremely sensitive magnetic probe of materials. Under this proposal we will develop new capabilities for high-pressure/low-temperature experiments on high quality single crystals. Crystals for these experiments will be synthesized in our laboratories at McMaster University and the University of Toronto.

量子相变发生在绝对零温度下物质的电子相之间。 对这种相变的研究是当前凝聚态物理学的一个关键主题。 静水压力已成为通过量子相变调节系统的关键参数。 在本提案中，我们的目标是基于高压研究的最新进展，开发一种独特的高压能力，用于执行μ子自旋弛豫测量。 μ子自旋弛豫是一种极其灵敏的材料磁探针。 根据该提案，我们将开发高质量单晶高压/低温实验的新功能。 这些实验的晶体将在麦克马斯特大学和多伦多大学的实验室合成。