Novel Electronic Properties of Unconventional Superconductors

非常规超导体的新颖电子特性

基本信息

  • 批准号:
    1104256
  • 负责人:
  • 金额:
    $ 39.9万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2011
  • 资助国家:
    美国
  • 起止时间:
    2011-08-01 至 2015-07-31
  • 项目状态:
    已结题

项目摘要

****Technical Abstract****This project will pursue experiments to significantly advance the understanding of the origin of superconductivity in the high-Tc cuprate superconductors and the pairing symmetry of iron-based superconductors. The goal is to study and understand the low-temperature normal state properties of the electron-doped high-Tc superconductors and to use this new knowledge to impact the understanding of all the cuprates, hole- and electron-doped. The electron-doped cuprate research will be carried out via a variety of transport experiments in ambient magnetic field and in fields above the upper critical field down to milliKelvin temperatures. Some transport experiments will be done under hydrostatic pressure or strain. The iron-based superconductor research will be attempted via phase-sensitive Josephson tunneling experiments in a SQUID or corner junction arrangement, as proposed in several theoretical papers. An important goal of all these experiments is to understand the mechanism of superconductivity in these two classes of unconventional high-Tc materials, a major unsolved problem in condensed matter physics. A comparison of the normal state and superconducting properties of these two systems is expected to lead to new and important insights into the role of electronic correlations in high-Tc superconductors. This project will support the education of one postdoctoral fellow in the physics, materials science and measurement techniques necessary to carry out the proposed research. From past experience, this type of research has shown itself to be an excellent training for many scientific careers from academia to high technology industries.****Non-Technical Abstract****The cause of the high-temperature superconductivity found in some copper oxide and iron-based materials is one of the most important unsolved problems in condensed matter physics. These materials have great potential for use in energy related technologies, such as improved motors and electricity generation and transmission. It is crucial to understand the mechanism of superconductivity in these materials in order to develop the knowledge to discover new superconductors that will work at room temperature and above. This project will pursue experiments designed to solve this basic scientific question, and which may also help to develop useful technology. This will be accomplished by employing advanced transport measurement techniques, novel synthetic methods for making new materials and improved thin-film versions of known materials, and by using national laboratory facilities for measurements under extreme magnetic field and temperature conditions. This project will support the education of one postdoctoral fellow in the physics, materials science and measurement techniques necessary to carry out the proposed research. From past experience, this type of research has shown itself to be an excellent training for many scientific careers from academia to high technology industries. If room temperature superconductors can be discovered they will have a significant impact on many current technologies, from energy to communication.
* 技术摘要 * 本项目将进行实验,以显著推进对高Tc铜酸盐超导体中超导性起源和铁基超导体配对对称性的理解。目标是研究和理解电子掺杂的高Tc超导体的低温正常态性质,并利用这些新知识来影响对所有铜酸盐,空穴和电子掺杂的理解。电子掺杂铜酸盐的研究将通过在环境磁场和上临界场以上至毫开尔文温度的场中的各种输运实验来进行。一些输运实验将在静水压力或应变下进行。铁基超导体的研究将尝试通过相敏约瑟夫森隧道实验在SQUID或角落结安排,在几个理论论文中提出。所有这些实验的一个重要目标是了解这两类非常规高温超导材料的超导机制,这是凝聚态物理学中一个尚未解决的主要问题。这两个系统的正常状态和超导性能的比较,预计将导致新的和重要的见解电子关联在高Tc超导体的作用。该项目将支持一名博士后研究员在物理学,材料科学和必要的测量技术进行拟议的研究的教育。从过去的经验来看,这种类型的研究已经证明自己是从学术界到高科技产业的许多科学职业的优秀培训。非技术摘要 * 在某些氧化铜和铁基材料中发现的高温超导性的原因是凝聚态物理学中最重要的未解决的问题之一。这些材料在能源相关技术中具有巨大的应用潜力,例如改进发动机以及发电和输电。了解这些材料中的超导机制对于开发发现在室温及以上工作的新超导体的知识至关重要。该项目将进行旨在解决这一基本科学问题的实验,这也可能有助于开发有用的技术。这将通过采用先进的输运测量技术、制造新材料的新合成方法和已知材料的改进薄膜版本,以及通过使用国家实验室设施在极端磁场和温度条件下进行测量来实现。该项目将支持一名博士后研究员在物理学,材料科学和必要的测量技术进行拟议的研究的教育。从过去的经验来看,这种类型的研究已经证明自己是从学术界到高科技产业的许多科学职业的一个很好的培训。如果能够发现室温超导体,它们将对从能源到通信的许多现有技术产生重大影响。

项目成果

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richard greene其他文献

richard greene的其他文献

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{{ truncateString('richard greene', 18)}}的其他基金

Investigation of the strange metal normal state of electron-doped oxide superconductors
电子掺杂氧化物超导体奇异金属正常态的研究
  • 批准号:
    2002658
  • 财政年份:
    2020
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Continuing Grant
A study of unconventional transport in electron-doped oxide superconductors
电子掺杂氧化物超导体的非常规输运研究
  • 批准号:
    1708334
  • 财政年份:
    2017
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Continuing Grant
Emergent Quantum Phenomena in Topological Kondo Insulators
拓扑近藤绝缘体中的涌现量子现象
  • 批准号:
    1410665
  • 财政年份:
    2014
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Continuing Grant
Electronic Properties of Electron-Doped Oxide Superconductors.
电子掺杂氧化物超导体的电子特性。
  • 批准号:
    0653535
  • 财政年份:
    2007
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Continuing Grant
Investigation of the Low Temperature Normal State of Electron-Doped Copper Oxides
电子掺杂氧化铜低温常态的研究
  • 批准号:
    0352735
  • 财政年份:
    2004
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Standard Grant
US-India Cooperative Research: Studies of the Vortex State vis-a-vis d-wave Superconductivity in Epitaxial Films of La2-xSrxCuO4
美印合作研究:La2-xSrxCuO4 外延膜中与 d 波超导相关的涡旋态研究
  • 批准号:
    0242867
  • 财政年份:
    2003
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Standard Grant
Physical Properties of Electron-Doped Copper Oxides
电子掺杂氧化铜的物理性质
  • 批准号:
    0102350
  • 财政年份:
    2001
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Standard Grant
Investigation of Pairing Symmetry and Normal State Properties of Electron-Doped Copper Oxides
电子掺杂氧化铜的配对对称性和正常态性质的研究
  • 批准号:
    9732736
  • 财政年份:
    1998
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Continuing Grant
Preparation and Physical Properties of Single Crystals and Thin Films of Neodimium Cerium Copper Oxides and Related Copper Oxides
铌铈铜氧化物及相关铜氧化物单晶和薄膜的制备及物理性能
  • 批准号:
    9510475
  • 财政年份:
    1995
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Continuing Grant
Preparation and Properties of Low Tc Copper Oxide Single Crystals
低Tc氧化铜单晶的制备及性能
  • 批准号:
    9209668
  • 财政年份:
    1992
  • 资助金额:
    $ 39.9万
  • 项目类别:
    Continuing Grant

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高维分子晶体的结构和分子自由度引起的新型拓扑电子特性的理论研究
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