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Vertical nanoscale strain-induced electronic localization in epitaxial La2/3Sr1/3MnO3 films with ZrO2 nanopillar inclusions.
Gao, Yuze; Roldan, Manuel A; Qiao, Liang; Mandrus, David; Shen, Xuechu; Chisholm, Matthew F; Singh, David J; Cao, Guixin.
Afiliación
  • Gao Y; Materials Genome Institute, Shanghai University, Shanghai, 200444, China.
  • Roldan MA; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6056, USA.
  • Qiao L; Departamento Fisica Aplicada III, Facultad de Ciencias Fisicas, Universidad Complutense de Madrid, 28040, Madrid, Spain.
  • Mandrus D; Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA.
  • Shen X; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6056, USA.
  • Chisholm MF; National Laboratory for Infrared Physics, Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai, 200083, China.
  • Singh DJ; Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6056, USA.
  • Cao G; Department of Physics and Astronomy, University of Missouri, Columbia, MO, 65211-7010, USA.
Nano Converg ; 10(1): 35, 2023 Jul 28.
Article en En | MEDLINE | ID: mdl-37505327
Unusual electrical transport properties associated with weak or strong localization are sometimes found in disordered electronic materials. Here, we report experimental observation of a crossover of electronic behavior from weak localization to enhanced weak localization due to the spatial influence of disorder induced by ZrO2 nanopillars in (La2/3Sr1/3MnO3)1-x:(ZrO2)x (x = 0, 0.2, and 0.3) nanocomposite films. The spatial strain regions, identified by scanning transmission electron microscopy and high-resolution x-ray diffraction, induce a coexistence of two-dimentional (2D) and three-dimentional (3D) localization and switches to typical 2D localization with increasing density of ZrO2 pillars due to length scale confinement, which interestingly accords with enhancing vertically interfacial strain. Based on the excellent agreement of our experimental results with one-parameter scaling theory of localization, the enhanced weak localization exists in metal range close to the fixed point. These films provide a tunable experimental model for studying localization in particular the transition regime by appropriate choice of the second epitaxial phase.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Converg Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Nano Converg Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido