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Role of scaffold network in controlling strain and functionalities of nanocomposite films.
Chen, Aiping; Hu, Jia-Mian; Lu, Ping; Yang, Tiannan; Zhang, Wenrui; Li, Leigang; Ahmed, Towfiq; Enriquez, Erik; Weigand, Marcus; Su, Qing; Wang, Haiyan; Zhu, Jian-Xin; MacManus-Driscoll, Judith L; Chen, Long-Qing; Yarotski, Dmitry; Jia, Quanxi.
Afiliação
  • Chen A; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Hu JM; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, USA.
  • Lu P; Sandia National Laboratories, Mail Stop 1411, Albuquerque, NM 87185, USA.
  • Yang T; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, USA.
  • Zhang W; Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA.
  • Li L; Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA.
  • Ahmed T; Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Enriquez E; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Weigand M; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Su Q; Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA.
  • Wang H; Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX 77843, USA.
  • Zhu JX; Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • MacManus-Driscoll JL; Department of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 OFS, UK.
  • Chen LQ; Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA 16802, USA.
  • Yarotski D; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
  • Jia Q; Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
Sci Adv ; 2(6): e1600245, 2016 06.
Article em En | MEDLINE | ID: mdl-27386578
ABSTRACT
Strain is a novel approach to manipulating functionalities in correlated complex oxides. However, significant epitaxial strain can only be achieved in ultrathin layers. We show that, under direct lattice matching framework, large and uniform vertical strain up to 2% can be achieved to significantly modify the magnetic anisotropy, magnetism, and magnetotransport properties in heteroepitaxial nanoscaffold films, over a few hundred nanometers in thickness. Comprehensive designing principles of large vertical strain have been proposed. Phase-field simulations not only reveal the strain distribution but also suggest that the ultimate strain is related to the vertical interfacial area and interfacial dislocation density. By changing the nanoscaffold density and dimension, the strain and the magnetic properties can be tuned. The established correlation among the vertical interface-strain-properties in nanoscaffold films can consequently be used to tune other functionalities in a broad range of complex oxide films far beyond critical thickness.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Óxidos / Nanocompostos Idioma: En Ano de publicação: 2016 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Óxidos / Nanocompostos Idioma: En Ano de publicação: 2016 Tipo de documento: Article