Novel Phases and Physical Properties of Classical and Quantum Materials at Extreme Conditions

极端条件下经典和量子材料的新相和物理性质

• 批准号: RGPIN-2020-06383
• 负责人: Desgreniers, Serge
• 金额: $ 2.04万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=717670
• 关键词: Novel; Phases; Physical; Properties; Classical

The proposed research and HQP training programs in physics of classical and quantum materials under extreme pressure and temperature conditions represent a continuation of current projects and new research initiatives. The program is comprised of four main long-term research goals: (a) unravel novel dense phases in classical and quantum materials which may present unusual physical properties at extreme conditions, achieved by the extensive use of diamond anvil cell techniques (b) compare the experimentally measured physical properties of novel dense phases of materials with computationally simulated properties to refine both the experimental results and computational modelling (c) make an intensive use of synchrotron radiation to probe dense materials (d) develop innovative experimental methods, devices, and nanosensors necessary to probe condensed matter submitted to extreme conditions. As short-term goals during the next granting period, we will (i) study the physical properties of dense 2D and quasi-2D quantum systems including van der Walls intercalated materials with the main, but not exclusive, focus on the exploration of BN and C based solids at extreme conditions. In this case, the use of extreme temperature and pressure is meant to induce changes of the optical/electronic response by tuning atomic interactions in the solid state for potentially useful applications in electronics and sensing (ii) pursue the exploration of conditions for the synthesis of novel binary compounds formed by nitrogen mixed with elements and other simple molecules, using pressure to induce unconventional bonding at high density (iii) carry out a systematic study of the conditions for binary compound formation and the physical properties of these novel dense van der Waals solids as innovative solid state energy storage systems and novel nitride phases with uncommon stoichiometry and unusual physical properties (iv) pursue the development of a new method for the study of quantum materials at extreme conditions. i.e., THz time-domain spectroscopy at high pressure using femtosecond laser-based radiation sources (v) grow diamond and diamond-like materials with controlled impurity level and crystalline microstructure by chemical vapour deposition to produce functionalized doped diamond nanosensors and diamond-embedded microcircuitry, both central to achieving extreme conditions, probing electrical and magnetic properties of high-density materials and developing accurate metrology. In addition to using instrumentation in our laboratory and core research facilities at uOttawa, the proposed program will largely take advantage of synchrotron radiation facilities with national and international collaborators. Our proposed program and research environment, designed to be accessible and inclusive, will provide a highly motivating and comprehensive training for students and postdoctoral fellows.

在极端压力和温度条件下，在经典和量子材料物理学的拟议研究和HQP培训计划代表了当前项目和新的研究计划的延续。该计划由四个主要的长期研究目标组成：（a）在经典和量子材料中阐明新颖的致密阶段，这些材料可能在极端条件下具有异常的物理特性，通过广泛使用钻石砧细胞技术（b）实现了实验性测量的材料的实验性能和计算的实验（计算），从而比较了实验测量的材料的实验性阶段，并比较了实验的实验（CONTINTIAL）。探测致密材料（D）的辐射开发了创新的实验方法，设备和纳米传感器，以探测提交到极端条件的凝结物。 作为在下一个授予期内的短期目标，我们将（i）研究密集的2D和准2D量子系统的物理特性，包括范德尔壁的插入材料，具有主要但不专有的侧重于在极端条件下基于BN和C的固体探索。在这种情况下，高温和压力的使用旨在通过在固态中调谐原子相互作用来诱导光学/电子响应的变化，以在电子和感应中进行潜在有用的应用（ii）追求探索条件，以探索合成新型二元化合物的新二进制化合物，该化合物由氮与元素混合的氮气混合和其他高度均匀构型（II）构型（II）构型（II）构型（II），II，II型（II）构型（II），II（II）indosition（II）（II）（II）（II）（II）（II）（II）（II）（II）（II）。这些新型密集的范德华固体的二元化合物形成和物理特性的条件是创新的固态储能系统和新的硝酸盐相，具有罕见的化学计量和异常物理性能（IV），从而开发了一种新方法，用于在极端条件下研究量子材料。 i.e., THz time-domain spectroscopy at high pressure using femtosecond laser-based radiation sources (v) grow diamond and diamond-like materials with controlled impurity level and crystalline microstructure by chemical vapour deposition to produce functionalized doped diamond nanosensors and diamond-embedded microcircuitry, both central to achieving extreme conditions, probing electrical and magnetic properties of high-density materials and developing准确的计量学。 除了在乌塔瓦（Uottawa）的实验室和核心研究设施中使用仪器外，该计划还将在很大程度上利用与国家和国际合作者一起利用同步加速器辐射设施。我们提出的计划和研究环境，旨在可访问和包容，将为学生和博士后研究员提供高度激励和全面的培训。