Coherent exploration and manipulation of quantum materials

量子材料的相干探索和操纵

• 批准号: RGPIN-2018-04865
• 负责人: Damascelli, Andrea
• 金额: $ 5.46万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=691791
• 关键词: Coherent; exploration; manipulation; quantum; materials

Quantum materials systems wherein long-range coherence in the electronic and structural degrees of freedom, in concert with strong interactions, give rise to new quantum phases of matter lie at the forefront of modern science. Their fundamental excitations yield glimpses into rare phenomena beyond the reach of even the most advanced particle accelerators, and their technological applications in daily life are myriad, ranging from Li-ion batteries in cell phones and electric vehicles, superconductive coils in MRI machines, and quantum dots in high-definition television screens. Yet other quantum materials, such as for example high-temperature superconductors, embody the outstanding open questions in modern physics and continue to elude our full understanding, nearly three decades after their discovery.******In my research group based at UBC, we develop state-of-the-art, high-resolution spectroscopic tools employing visible, ultraviolet, and x-ray radiation to probe the surface and bulk electronic properties of these quantum materials at the frontier of condensed matter physics. For example, during the most recent Discovery Grant period, we used new pulsed laser and synchrotron measurement capabilities to perform groundbreaking experiments on self-organization of electrons in cuprates, as well as relativistic effects in ruthenates and iron-based superconductors. Together, these achievements provided major contributions to our understanding of unconventional and high-temperature superconductivity. Additionally, using in situ surface manipulation techniques pioneered in my group, we were able to turn graphene a 2D semi-metal into a superconductor, a technological breakthrough.******In this program, with my team of talented students, postdocs, and research staff we seek to build upon successes in both the equilibrium and dynamical spectroscopic study of quantum materials while expanding into new territories of quantum manipulation. To do so, we seek to establish coherent control of both crystal and electronic structures via adatom deposition, multiaxial strain, and pulsed laser sources of various wavelengths. By this multipronged approach, we may continue to explore novel quantum materials of both intellectual and technological interest to the wider scientific community, pushing the known limits of solid state towards altogether new phases of quantum matter.

量子材料系统，其中电子和结构性自由度的远程连贯性与强烈的相互作用结合在一起，从而导致物质的新量子阶段位于现代科学的最前沿。他们的基本激发使甚至最先进的粒子加速器触及的罕见现象都瞥见了稀有现象，而且它们在日常生活中的技术应用是无数的，从手机和电动汽车中的锂离子电池，MRI机器中的超导线圈，以及高级电视电视节目中的量子点。 Yet other quantum materials, such as for example high-temperature superconductors, embody the outstanding open questions in modern physics and continue to elude our full understanding, nearly three decades after their discovery.******In my research group based at UBC, we develop state-of-the-art, high-resolution spectroscopic tools employing visible, ultraviolet, and x-ray radiation to probe the surface and bulk electronic properties of these quantum materials at the frontier凝结物理学。例如，在最近的发现赠款期间，我们使用了新的脉冲激光和同步子测量能力来对丘比特人的电子自组织进行开创性的实验，以及在鲜明情况和基于铁的超导体中的相对论效应。这些成就共同为我们理解非常规和高温超导提供了重大贡献。另外，使用在我的小组中使用的原位表面操纵技术，我们能够将石墨烯变成2D半金属变成超导体，这是一种技术突破。为此，我们试图通过ADATOM沉积，多轴应变以及各种波长的脉冲激光来源建立对晶体和电子结构的连贯控制。通过这种多收益的方法，我们可能会继续向更广泛的科学界探索智力和技术兴趣的新型量子材料，从而将固态的已知限制推向了量子问题的完全新阶段。