CAREER: Multifunctional Heterostructures of Perovskite Structured Materials

职业:钙钛矿结构材料的多功能异质结构

基本信息

  • 批准号:
    0747896
  • 负责人:
  • 金额:
    $ 40万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
    Continuing Grant
  • 财政年份:
    2008
  • 资助国家:
    美国
  • 起止时间:
    2008-08-01 至 2014-07-31
  • 项目状态:
    已结题

项目摘要

NON-TECHNICAL DESCRIPTION: The development of next generation spintronic devices, sensors, and low temperature solid oxide fuel cells requires the development of materials with new functional properties not found in conventional bulk materials. A novel route involves harnessing the unexpected physical phenomena that result from the changes in structure and chemistry which occur over nanometer scales at surfaces and interfaces. The approach of this work utilizes laser-assisted growth to control interfacial properties with atomic layer precision in combination with state-of-the-art techniques for characterizing the structural and chemical properties. In this way, a full understanding of the origins of new magnetic and electronic properties derived from interfacial mechanisms can be determined. The research activities involve training of undergraduate and graduate researchers, including under-represented minorities through the NSF California Alliance for Minority Participation (CAMP) program. Furthermore, a Science, Technology, Engineering, and Mathematics (STEM) workshop brings educationally disadvantaged students from community colleges around Northern California to UC Davis to experience first hand what the science and engineering programs at UC Davis can offer them. TECHNICAL DESCRIPTION: The objective of this CAREER proposal involves understanding and harnessing surface and interfacial phenomena in artificial heterostructures and nanocomposites which possess multiple functional properties as needed for next generation spintronic devices, sensors, and low temperature solid oxide fuel cells. Perovskite structured materials are chosen as the platform for this work for their diverse and tunable functional properties. The unique aspect of this work involves the combined expertise in two equally important areas. First, heterostructures and nanocomposites with precisely controlled chemical and structural parameters are grown by pulsed laser deposition. Nanocomposites consisting of isolated islands embedded in a matrix are defined by a structural modification through a two-step process of e-beam lithography followed by ion implantation. Second, sophisticated characterization techniques are used to carefully probe both the local surface and interfacial properties and their effect on the overall global functional properties. In particular, synchrotron radiation based techniques which offer surface sensitive and chemically selective information on the electronic structure and magnetic characteristics of each layer are employed. Together, these steps provide a means of gaining a fundamental understanding of surface and interfacial effects which can be harnessed towards the control of the multifunctionality of materials systems.
非技术描述:下一代自旋电子器件、传感器和低温固体氧化物燃料电池的发展需要开发具有传统大块材料中没有的新功能特性的材料。一种新的途径涉及利用意想不到的物理现象,这些现象是由表面和界面在纳米尺度上发生的结构和化学变化引起的。这项工作的方法利用激光辅助生长来控制原子层精度的界面性质,并结合最先进的技术来表征结构和化学性质。通过这种方式,可以确定从界面机制中获得的新磁性和电子性质的来源的充分理解。研究活动涉及对本科生和研究生研究人员的培训,包括通过国家科学基金会加州少数民族参与联盟(CAMP)计划培训未被充分代表的少数民族。此外,科学、技术、工程和数学(STEM)研讨会将来自北加州社区大学的教育弱势学生带到加州大学戴维斯分校,亲身体验加州大学戴维斯分校的科学和工程项目能为他们提供什么。技术描述:本职业计划书的目标包括理解和利用人工异质结构和纳米复合材料中的表面和界面现象,这些材料具有下一代自旋电子器件、传感器和低温固体氧化物燃料电池所需的多种功能特性。钙钛矿结构材料因其多样化和可调的功能特性而被选择作为这项工作的平台。这项工作的独特之处在于将两个同等重要的领域的专业知识结合起来。首先,利用脉冲激光沉积技术生长出具有精确控制化学和结构参数的异质结构和纳米复合材料。纳米复合材料由嵌入在基体中的孤岛组成,通过电子束光刻和离子注入两步工艺对结构进行修饰。其次,使用复杂的表征技术仔细地探测局部表面和界面性质及其对整体功能性质的影响。特别是,同步辐射技术,提供表面敏感和化学选择性信息的电子结构和磁特性的每一层被采用。总之,这些步骤提供了一种获得对表面和界面效应的基本理解的方法,可以用来控制材料系统的多功能。

项目成果

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Yayoi Takamura其他文献

Tailoring of titanium dioxide thin film in dual radiofrequency plasma enhanced pulsed laser deposition
双射频等离子体增强脉冲激光沉积中二氧化钛薄膜的剪裁
  • DOI:
    10.1016/j.apsusc.2025.163872
  • 发表时间:
    2025-11-15
  • 期刊:
  • 影响因子:
    6.900
  • 作者:
    Rodrigo Villegas;Matías Tomlinson;Valentina Ureta De La Fuente;Camilo Carrasco;Maximiliano Miranda;José Ignacio Fernández;Daniel Saavedra;María José Retamal;María José Inestrosa-Izurieta;Dinesh Pratap Singh;Felipe A. Angel;Ulrich G. Volkmann;Yayoi Takamura;Heman Bhuyan
  • 通讯作者:
    Heman Bhuyan
Synthesis and Magnetic Properties of Nanocomposites and Heterostructures, MRS Online Proceedings Library, 2014 <Editor>
纳米复合材料和异质结构的合成和磁性,MRS Online Proceedings Library,2014 <编辑>
  • DOI:
  • 发表时间:
    2014
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Yayoi Takamura;Gun-Hwan Lee;Nobuyuki Iwata;Hiroaki Nishikawa;Tamio Endo
  • 通讯作者:
    Tamio Endo
Yttria-stabilized zirconia crystallization in Al2O3/YSZ multilayers
  • DOI:
    10.1557/jmr.2011.439
  • 发表时间:
    2012-03-01
  • 期刊:
  • 影响因子:
    2.900
  • 作者:
    Nihan Kemik;Sergey V. Ushakov;Meng Gu;Nicole Schichtel;Carsten Korte;Nigel D. Browning;Yayoi Takamura;Alexandra Navrotsky
  • 通讯作者:
    Alexandra Navrotsky
Synthesis and Magnetic Properties of Nanocomposites and Heterostructures, Japanese Journal of Applied Physics, Special Issue 53, 2014 <Editor>
纳米复合材料和异质结构的合成和磁性,日本应用物理杂志,特刊 53,2014 年<编辑>
  • DOI:
  • 发表时间:
    2014
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Hiroaki Nishikawa;Nobuyuki Iwata;Tamio Endo;Gun-Hwan Lee;Yayoi Takamura
  • 通讯作者:
    Yayoi Takamura
Band offset induced threshold variation in strained-Si nMOSFETs
应变 Si nMOSFET 中的能带偏移引起的阈值变化
  • DOI:
    10.1109/led.2003.815431
  • 发表时间:
    2003
  • 期刊:
  • 影响因子:
    4.9
  • 作者:
    J. Goo;Qi Xiang;Yayoi Takamura;F. Arasnia;Eric N. Paton;Paul Besser;James Pan;M. Lin
  • 通讯作者:
    M. Lin

Yayoi Takamura的其他文献

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{{ truncateString('Yayoi Takamura', 18)}}的其他基金

MRI: Acquisition of comprehensive x-ray scattering system for in situ studies
MRI:获取用于原位研究的综合 X 射线散射系统
  • 批准号:
    2216198
  • 财政年份:
    2022
  • 资助金额:
    $ 40万
  • 项目类别:
    Standard Grant
Collaborative Research: Field Control of Spin Transport in Antiferromagnet Perovskite Oxide Heterostructures
合作研究:反铁磁体钙钛矿氧化物异质结构中自旋输运的场控制
  • 批准号:
    2004704
  • 财政年份:
    2020
  • 资助金额:
    $ 40万
  • 项目类别:
    Standard Grant
Tailoring Exchange Interactions in Complex Oxide Heterostructures
定制复杂氧化物异质结构中的交换相互作用
  • 批准号:
    1745450
  • 财政年份:
    2018
  • 资助金额:
    $ 40万
  • 项目类别:
    Continuing Grant
Exploring Exchange Interactions at Perovskite Oxide Interfaces
探索钙钛矿氧化物界面的交换相互作用
  • 批准号:
    1411250
  • 财政年份:
    2014
  • 资助金额:
    $ 40万
  • 项目类别:
    Standard Grant

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ERI:自我识别复合结构元件 (SR-CSE):多功能、可持续且可靠
  • 批准号:
    2347554
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    2024
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Multifunctional polymers for combined algal inactivation and flocculation
用于组合藻类灭活和絮凝的多功能聚合物
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    DE240100987
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Multifunctional High Entropy Carbide and Boride (HECARBO) Ceramic Composites: Compositional Space, Novel Synthesis, and Property Tailoring
多功能高熵碳化物和硼化物 (HECARBO) 陶瓷复合材料:成分空间、新颖合成和性能定制
  • 批准号:
    EP/Y020804/1
  • 财政年份:
    2024
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    $ 40万
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Multifunctional sustainable adsorbents for water treatment assisted with plasma technologies and for health protection from xenobiotics
多功能可持续吸附剂,用于等离子体技术辅助的水处理和外源性健康保护
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设计用于微生物群落高通量原位评估的多功能纳米培养系统
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职业:可打印多功能微结构材料的网络基础设施
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Multifunctional nanomedicine prototypes acting as prophylactics and virus-assisted targeted drug delivery vehicle (NANOPROV)
作为预防剂和病毒辅助靶向药物输送载体的多功能纳米药物原型(NANOPROV)
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  • 财政年份:
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RII Track-4:@NASA: Process-Structure-Property Relationship of the Hybrid Manufactured Multifunctional Mechano-Luminescence-Optoelectronic Fibers
RII Track-4:@NASA:混合制造的多功能机械-发光-光电纤维的工艺-结构-性能关系
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Graphene Alliance for Sustainable Multifunctional Materials to Tackle Environmental Challenges
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  • 批准号:
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