• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Physics Letters >Symmetry breaking and geometric confinement in VO_2: Results from a three-dimensional infrared nano-imaging
【24h】

Symmetry breaking and geometric confinement in VO_2: Results from a three-dimensional infrared nano-imaging

机译：VO_2中的对称破坏和几何约束：三维红外纳米成像的结果

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Epitaxial strain can play an important role in controlling the local phase dynamics of transition metal oxides. With scattering-type scanning near-field optical microscopy, we visualize the three dimensional landscape of phase inhomogeneity in strained VO_2 films grown on [100]_R TiO_2 substrates. We demonstrate that three different symmetries are spontaneously broken in the vicinity of the VO_2 phase transition: (1) Monoclinic-tetragonal (rutile) crystal symmetry breaking due to the structural phase transition, (2) in-plane (x-y plane) rotational symmetry breaking due to the formation of periodic strain domains, and (3) out-of-plane (z-axis) mirror symmetry breaking at the film cross-section due to substrate-induced epitaxial strain.
机译：外延应变可以在控制过渡金属氧化物的局部相动力学中起重要作用。利用散射型扫描近场光学显微镜，我们可以看到在[100] _R TiO_2衬底上生长的应变VO_2薄膜中相不均匀的三维景观。我们证明在VO_2相变附近自发地破坏了三个不同的对称性：（1）由于结构相变而导致的单斜四方（金红石）晶体对称性破坏，（2）平面内（xy平面）旋转对称性破坏（3）由于衬底引起的外延应变，薄膜横截面的平面外（z轴）镜像对称性破裂。

著录项

  • 来源
    《Applied Physics Letters》 |2014年第12期|121905.1-121905.5|共5页
  • 作者

    Mengkun Liu; Martin Wagner; Jingdi Zhang; Alexander McLeod; Salinporn Kittiwatanakul; Zhe Fei; Elsa Abreu; Michael Goldflam; Aaron J. Sternbach; Siyuan Dai; Kevin G. West; Jiwei Lu; Stuart A. Wolf; Richard D. Averitt; D. N. Basov;

  • 作者单位

    Department of Physics, University of California, San Diego, La Jolla, California 92093, USA;

    Department of Physics, University of California, San Diego, La Jolla, California 92093, USA;

    Department of Physics, Boston University, Boston, Massachusetts 02215, USA;

    Department of Physics, University of California, San Diego, La Jolla, California 92093, USA;

    Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA;

    Department of Physics, University of California, San Diego, La Jolla, California 92093, USA;

    Department of Physics, Boston University, Boston, Massachusetts 02215, USA;

    Department of Physics, University of California, San Diego, La Jolla, California 92093, USA;

    Department of Physics, University of California, San Diego, La Jolla, California 92093, USA;

    Department of Physics, University of California, San Diego, La Jolla, California 92093, USA;

    Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904, USA;

    Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904, USA;

    Department of Physics, University of Virginia, Charlottesville, Virginia 22904, USA,Department of Materials Science and Engineering, University of Virginia, Charlottesville, Virginia 22904, USA;

    Department of Physics, University of California, San Diego, La Jolla, California 92093, USA,Department of Physics, Boston University, Boston, Massachusetts 02215, USA;

    Department of Physics, University of California, San Diego, La Jolla, California 92093, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-18 03:15:46

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号