Superconductivity and Competing Orders in High Tc Cuprates

高温铜氧化物中的超导性和竞争秩序

基本信息

  • 批准号:
    EP/R011141/1
  • 负责人:
  • 金额:
    $ 132万
  • 依托单位:
  • 依托单位国家:
    英国
  • 项目类别:
    Research Grant
  • 财政年份:
    2018
  • 资助国家:
    英国
  • 起止时间:
    2018 至 无数据
  • 项目状态:
    已结题

项目摘要

Superconductivity is a phenomenon that has the potential to radically transform applications of electrical power, from high-field magnets, to power transmission, motors and generators. Using superconducting materials can significantly reduce our energy usage and enable technologies, such as medical MRI scanners or nuclear fusion reactors. The key to fully realizing this potential is to develop materials which can be operated at high temperature and carry high currents. Although the discovery of new materials can be somewhat serendipitous, the search has been guided by our fundamental understanding of their physics. The the class of materials with the best current prospects for developing superconducting applications at high temperature are the cuprates, as these have the highest critical temperatures at ambient pressure. However for the cuprates, unlike conventional superconductors, there is as yet no consensus as to the physical mechanism which causes the superconductivity. Although cuprates have been studied for 30 years, recently there has been a step change in our understanding of these materials which has, in large part, been driven by experiments carried out using very high magnetic fields to suppress superconductivity and x-rays and neutrons to probe the collective charge and spin correlations. These developments have brought some clarity to the charge-doping versus temperature phase diagram of these materials and has gone some way to identifying the microscopic origin of the so-called pseudogap and charge density wave phases. Although it is known that these phases coexist and compete with the superconductivity, it is less clear whether fluctuations associated with these phases is the root cause of high temperature superconductivity or rather competes and reduces it.Here we plan to build on these recent developments, which are in turn coupled to major advances in available experimental facilities, such as resonant inelastic x-ray scattering (RIXS) and very high magnetic fields, to make major advances in our understanding of cuprate superconductors. In particular, we will use x-ray and neutron spectroscopies to study the evolution of the magnetic and charge fluctuations as different cuprate materials are tuned across their doping-temperature phase diagram, with particular emphasis on the emergence of the pseudogap and charge ordered phases. Another major new angle we will seek to exploit is the use of high pressure techniques in conjunction with high magnetic fields to measure quantum oscillations and magneto-transport properties. By forcing atoms together with pressure the properties are changed in ways that are different from charge doping. For example, it is only under high pressure that the highest transition temperatures of cuprates are realised. Pressure can be used to remove accidental degeneracies between competing phases and hence hopefully clarify which of these are important for superconductivity and which are not.
超导性是一种有可能从根本上改变电力应用的现象,从高场磁体到电力传输,电动机和发电机。使用超导材料可以显著减少我们的能源使用,并使医疗MRI扫描仪或核聚变反应堆等技术成为可能。充分实现这一潜力的关键是开发可在高温下工作并携带高电流的材料。虽然新材料的发现可能有点偶然,但搜索一直受到我们对其物理学的基本理解的指导。目前在高温下开发超导应用前景最好的一类材料是铜酸盐,因为它们在环境压力下具有最高的临界温度。然而,与传统的超导体不同的是,对于铜酸盐,关于导致超导性的物理机制还没有达成共识。虽然铜氧化物已经研究了30年,但最近我们对这些材料的理解发生了一步变化,这在很大程度上是由使用非常高的磁场来抑制超导性和X射线和中子来探测集体电荷和自旋相关性的实验所驱动的。这些进展使这些材料的电荷掺杂与温度相图变得清晰,并在某种程度上确定了所谓的赝能隙和电荷密度波相位的微观起源。虽然已知这些相共存并与超导性竞争,但不太清楚与这些相相关的波动是否是高温超导性的根本原因,或者更确切地说是竞争并降低它。在这里,我们计划建立在这些最近的发展基础上,这些发展反过来又与可用实验设施的重大进展相结合,例如共振非弹性X射线散射(RIXS)和非常高的磁场,以使我们对铜氧化物超导体的理解取得重大进展。特别是,我们将使用X射线和中子光谱学来研究不同的铜酸盐材料在其掺杂温度相图上进行调谐时的磁性和电荷波动的演变,特别强调赝能隙和电荷有序相的出现。另一个主要的新角度,我们将寻求利用是使用高压技术结合高磁场来测量量子振荡和磁输运性质。通过用压力迫使原子在一起,性质以不同于电荷掺杂的方式改变。例如,只有在高压下才能实现铜酸盐的最高转变温度。压力可以用来消除竞争相之间的偶然简并,从而有希望澄清哪些对超导性很重要,哪些不重要。

项目成果

期刊论文数量(10)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
London Penetration Depth Measurements Using Tunnel Diode Resonators
使用隧道二极管谐振器进行伦敦渗透深度测量
Superconducting dome and pseudogap endpoint in Bi2201
  • DOI:
    10.1103/physrevmaterials.6.044804
  • 发表时间:
    2022-04
  • 期刊:
  • 影响因子:
    3.4
  • 作者:
    M. Berben;S. Smit;C. Duffy;Y. Hsu;L. Bawden;F. Heringa;F. Gerritsen;S. Cassanelli;X. Feng;S. Bron;E. van Heumen;Y. Huang;F. Bertran;T. Kim;C. Cacho;A. Carrington;M. Golden;N. Hussey
  • 通讯作者:
    M. Berben;S. Smit;C. Duffy;Y. Hsu;L. Bawden;F. Heringa;F. Gerritsen;S. Cassanelli;X. Feng;S. Bron;E. van Heumen;Y. Huang;F. Bertran;T. Kim;C. Cacho;A. Carrington;M. Golden;N. Hussey
Transport evidence for decoupled nematic and magnetic criticality in iron chalcogenides
  • DOI:
    10.1038/s42005-022-00873-8
  • 发表时间:
    2022-04-22
  • 期刊:
  • 影响因子:
    5.5
  • 作者:
    Ayres, Jake;Culo, Matija;Hussey, Nigel E.
  • 通讯作者:
    Hussey, Nigel E.
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Antony Carrington其他文献

銅酸化物超伝導体の擬ギャップ相におけるネマティック転移
铜酸盐超导体赝能隙相中的向列相转变
  • DOI:
  • 发表时间:
    2016
  • 期刊:
  • 影响因子:
    0
  • 作者:
    佐藤雄貴;下山祐介;笠原成;笠原裕一;芝内孝禎;西嵜照和;Antony Carrington;Carsten Putzke;松田祐司;笠原成
  • 通讯作者:
    笠原成
磁場侵入長による鉄砒素系超伝導体 BaFe2(As1-xPx)2単結晶の超伝導対称性の決定
磁场穿透深度测定铁砷超导体BaFe2(As1-xPx)2单晶的超导对称性
  • DOI:
  • 发表时间:
    2009
  • 期刊:
  • 影响因子:
    0
  • 作者:
    橋本顕一郎;利根川翔;井加田洗輔;Allensando Serafin;Antony Carrington;笠原成;寺嶋孝仁;竹屋浩幸;平田和人;芝内孝禎;松田祐司
  • 通讯作者:
    松田祐司
Angle Dependent Specific Heat Study of BaFe2(As0.7P0.3)
BaFe2(As0.7P0.3) 角度相关比热研究
  • DOI:
  • 发表时间:
    2013
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Liam Malone;Yuta Mizukami;Philip Walmsley;S. Kasahara; T. Shibauchi;Y. Matsuda;Antony Carrington
  • 通讯作者:
    Antony Carrington
パルスマグネットを用いた強磁場軟X線MCD測定技術の開発
利用脉冲磁体开发强磁场软X射线MCD测量技术
  • DOI:
  • 发表时间:
    2010
  • 期刊:
  • 影响因子:
    0
  • 作者:
    橋本顕一郎;Allensando Serafin;Antony Carrington;笠原成;利根川翔;井加田洸輔;山下穣;池田浩章;寺嶋孝仁;芝内孝禎;松田祐司;中村哲也
  • 通讯作者:
    中村哲也
Dynamics of Charged Quantized Vortices(Invited), QFS2009 : International Symposium on Quantum Fluids and Solids
带电量子化涡动力学(特邀),QFS2009:量子流体与固体国际研讨会
  • DOI:
  • 发表时间:
    2009
  • 期刊:
  • 影响因子:
    0
  • 作者:
    橋本顕一郎;Alessaodro Serafin;Antony Carrington;岡崎竜二;利根川翔;勝股亮;山下穣;木方邦宏;李哲虎;伊豫彰;永崎洋;齊藤拓;深澤英人;小堀洋;池田浩章;芝内孝禎;松田祐司;M. Tsubota
  • 通讯作者:
    M. Tsubota

Antony Carrington的其他文献

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{{ truncateString('Antony Carrington', 18)}}的其他基金

Microcalorimetry In Pulsed Magnetic Fields
脉冲磁场中的微量热法
  • 批准号:
    EP/V048406/1
  • 财政年份:
    2021
  • 资助金额:
    $ 132万
  • 项目类别:
    Research Grant
High pressure studies of quantum criticality in unconventional superconductors
非常规超导体量子临界性的高压研究
  • 批准号:
    EP/L025736/1
  • 财政年份:
    2014
  • 资助金额:
    $ 132万
  • 项目类别:
    Research Grant
Fermi Surface Reconstruction in Cuprate High Temperature Superconductors
铜酸盐高温超导体中的费米表面重构
  • 批准号:
    EP/K016709/1
  • 财政年份:
    2013
  • 资助金额:
    $ 132万
  • 项目类别:
    Research Grant
Normal and superconducting state electronic structure of iron based superconductors
铁基超导体常态和超导态电子结构
  • 批准号:
    EP/H025855/1
  • 财政年份:
    2010
  • 资助金额:
    $ 132万
  • 项目类别:
    Research Grant
Fermiology of High Temperature Superconductors
高温超导体的费米学
  • 批准号:
    EP/F038836/1
  • 财政年份:
    2008
  • 资助金额:
    $ 132万
  • 项目类别:
    Research Grant

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Spin and Charge Dynamics: Competing Orders and Quasi-Particle Formation
自旋和电荷动力学:竞争秩序和准粒子形成
  • 批准号:
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使用红外霍尔测量解决铜酸盐和铁磷化物高温超导体中的竞争顺序和对称性破缺
  • 批准号:
    1410599
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Competing orders in low dimensional organic superconductors
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  • 财政年份:
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  • 资助金额:
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    Discovery Grants Program - Individual
Competing orders in low dimensional organic superconductors
低维有机超导体中的竞争订单
  • 批准号:
    9363-2011
  • 财政年份:
    2011
  • 资助金额:
    $ 132万
  • 项目类别:
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