RUI: Probing the Energy Gap of Clean Magnesium Diboride using High Resolution Tunneling Spectroscopy

RUI:利用高分辨率隧道光谱探测清洁二硼化镁的能隙

基本信息

  • 批准号:
    1555775
  • 负责人:
  • 金额:
    $ 6.69万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2015
  • 资助国家:
    美国
  • 起止时间:
    2015-08-15 至 2020-02-29
  • 项目状态:
    已结题

项目摘要

****TECHNICAL ABSTRACT****This project will investigate sub-structure in the superconducting energy gap of very clean samples of multi-gapped superconductors such as magnesium diboride (MgB2) and some iron-based superconductors. The energy gap is a key feature in the study of these novel materials and the results of these experiments can help validate existing theories, provide new data, and contribute to a better understanding of the role of gap distribution in multi-gapped superconductivity. Experiments will involve high-resolution tunneling spectroscopy made possible by cooling samples to low to very low (sub-Kelvin) temperatures and using high-resolution techniques of data acquisition. Samples will consist of thin film Josephson junctions to be obtained from several collaborators who are world leaders in the fabrication of high-quality samples. This research will be carried out at a primarily undergraduate institution, where undergraduate research is rapidly growing. This project will support the training of undergraduate and pre-college students and open physics research opportunities for women and minorities in a liberal arts environment where majority of students are women.****NON-TECHNICAL ABSTRACT****This project supports the experimental study of superconductors in a primarily undergraduate institution. The energy gap of a superconductor is an important property that enables us to better understand and apply these novel materials. While many superconductors have only a single energy gap, this research will probe, to very high resolution, the energy gap of multi-gapped superconductors such as magnesium diboride and some of the recently-discovered iron-based superconductors. This will be made possible by using very clean thin film Josephson junctions obtained from research collaborators who are world leaders in the fabrication of high-quality samples. The samples will be cooled to temperatures close to absolute zero and probed using tunneling spectroscopy and high-resolution data acquisition techniques. The results will help validate existing theories and provide new data to better understand multi-gapped superconductivity. This project supports the education and training of undergraduates in solid-state physics in a liberal arts setting where sixty-four percent of students are women. Undergraduates will receive training in low-noise electronics, cryogenics, and materials characterization skills needed for graduate studies or work in physics and many STEM fields. Furthermore, the educational component of this research makes possible a three-day summer science camp for middle school girls. The camp is designed to enhance the interest in science through interactive experiments and demonstrations of real-world physics, role-playing activities, laboratory tours, and other hands-on activities.
****技术摘要****本项目将研究多间隙超导体如二硼化镁(MgB2)和一些铁基超导体的非常干净样品的超导能隙中的子结构。能隙是研究这些新材料的一个关键特征,这些实验结果有助于验证现有理论,提供新的数据,并有助于更好地理解多隙超导中能隙分布的作用。实验将涉及高分辨率隧道光谱,通过将样品冷却到低至极低(亚开尔文)温度和使用高分辨率数据采集技术来实现。样品将由薄膜约瑟夫森结组成,这些结将从几个在制造高质量样品方面处于世界领先地位的合作者那里获得。这项研究将在一个主要的本科院校进行,那里的本科研究正在迅速增长。该项目将支持本科生和大学预科学生的培训,并在以女性学生为主的文科环境中为女性和少数族裔提供物理研究机会。****非技术摘要****本项目支持在一所本科院校进行超导体实验研究。超导体的能隙是一个重要的性质,使我们能够更好地理解和应用这些新材料。虽然许多超导体只有一个能隙,但这项研究将以非常高的分辨率探测多能隙超导体的能隙,如二硼化镁和一些最近发现的铁基超导体。这将通过使用非常干净的薄膜约瑟夫森结来实现,这些结来自研究合作者,他们是制造高质量样品的世界领导者。样品将被冷却到接近绝对零度的温度,并使用隧道光谱和高分辨率数据采集技术进行探测。结果将有助于验证现有理论,并为更好地理解多间隙超导性提供新的数据。该项目支持固态物理学本科生的教育和培训,其中64%的学生是女性。本科生将接受低噪音电子学、低温学和材料表征技能方面的培训,这些技能是研究生学习或在物理学和许多STEM领域工作所需要的。此外,这项研究的教育成分使为期三天的中学女生暑期科学营成为可能。该夏令营旨在通过互动实验和真实物理演示、角色扮演活动、实验室参观和其他动手活动来提高学生对科学的兴趣。

项目成果

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Roberto Ramos其他文献

Structural behavior assessment of a flexible pipe under axial compressive loads using digital image correlation
Growing Like Spain: 1995–2007
像西班牙一样成长:1995-2007
  • DOI:
    10.1111/iere.12427
  • 发表时间:
    2020
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Manuel Garćıa;Enrique Moral;Josep Pijoan;Roberto Ramos
  • 通讯作者:
    Roberto Ramos
Antioxidant effect of Cymbopogon citratus and Hypericum perforatum extracts in boar semen like a new alternative for conservation
香茅和贯叶金丝桃提取物在公猪精液中的抗氧化作用,成为一种新的保护替代品
  • DOI:
    10.1080/26895293.2021.1987337
  • 发表时间:
    2021
  • 期刊:
  • 影响因子:
    1.2
  • 作者:
    Andrea Guerrero;Fabiola Villarreal;A. Zamudio;Gilberto Velázquez;Roberto Ramos;Yadira G. Sánchez;J. Hernández;J. Hernández;D. Sánchez
  • 通讯作者:
    D. Sánchez
Development of a Computational Platform to Support the Screening, Surveillance, Prevention and Detection of Suicidal Behaviours
开发计算平台以支持自杀行为的筛查、监测、预防和检测
Dissecting the Size Distribution of Establishments Across Countries
剖析各国机构的规模分布
  • DOI:
  • 发表时间:
    2012
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Manuel Garćıa;Roberto Ramos
  • 通讯作者:
    Roberto Ramos

Roberto Ramos的其他文献

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{{ truncateString('Roberto Ramos', 18)}}的其他基金

RUI: Probing the Energy Gap of Clean Magnesium Diboride using High Resolution Tunneling Spectroscopy
RUI:利用高分辨率隧道光谱探测清洁二硼化镁的能隙
  • 批准号:
    1206561
  • 财政年份:
    2012
  • 资助金额:
    $ 6.69万
  • 项目类别:
    Continuing Grant

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