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Title: Role of scaffold network in controlling strain and functionalities of nanocomposite films

Abstract

One novel approach to manipulating functionalities in correlated complex oxides is strain. 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. Moreover, 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.

Authors:
 [1];  [2];  [3];  [2];  [4];  [4];  [1];  [1];  [1];  [4];  [4];  [1];  [5];  [2];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Texas A & M Univ., College Station, TX (United States)
  5. Univ. of Cambridge (United Kingdom)
Publication Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1258582
Report Number(s):
LA-UR-16-21575
Journal ID: ISSN 2375-2548
Grant/Contract Number:  
AC52-06NA25396
Resource Type:
Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 2; Journal Issue: 6; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; thin films; strain engineering; phase field simulation; microstructures; magnetoresistance; magnetic anisotrophy

Citation Formats

Chen, Aiping, Hu, Jia -Mian, Lu, Ping, Yang, Tiannan, Zhang, Wenrui, Li, Leigang, Ahmed, T., Enriquez, E., Weigand, M., Su, Qing, Wang, Haiyan, Zhu, J. -X., MacManus-Driscoll, Judith L., Chen, Long -Qing, Yarotski, D., and Jia, Q. Role of scaffold network in controlling strain and functionalities of nanocomposite films. United States: N. p., 2016. Web. doi:10.1126/sciadv.1600245.
Chen, Aiping, Hu, Jia -Mian, Lu, Ping, Yang, Tiannan, Zhang, Wenrui, Li, Leigang, Ahmed, T., Enriquez, E., Weigand, M., Su, Qing, Wang, Haiyan, Zhu, J. -X., MacManus-Driscoll, Judith L., Chen, Long -Qing, Yarotski, D., & Jia, Q. Role of scaffold network in controlling strain and functionalities of nanocomposite films. United States. https://doi.org/10.1126/sciadv.1600245
Chen, Aiping, Hu, Jia -Mian, Lu, Ping, Yang, Tiannan, Zhang, Wenrui, Li, Leigang, Ahmed, T., Enriquez, E., Weigand, M., Su, Qing, Wang, Haiyan, Zhu, J. -X., MacManus-Driscoll, Judith L., Chen, Long -Qing, Yarotski, D., and Jia, Q. Fri . "Role of scaffold network in controlling strain and functionalities of nanocomposite films". United States. https://doi.org/10.1126/sciadv.1600245. https://www.osti.gov/servlets/purl/1258582.
@article{osti_1258582,
title = {Role of scaffold network in controlling strain and functionalities of nanocomposite films},
author = {Chen, Aiping and Hu, Jia -Mian and Lu, Ping and Yang, Tiannan and Zhang, Wenrui and Li, Leigang and Ahmed, T. and Enriquez, E. and Weigand, M. and Su, Qing and Wang, Haiyan and Zhu, J. -X. and MacManus-Driscoll, Judith L. and Chen, Long -Qing and Yarotski, D. and Jia, Q.},
abstractNote = {One novel approach to manipulating functionalities in correlated complex oxides is strain. 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. Moreover, 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.},
doi = {10.1126/sciadv.1600245},
journal = {Science Advances},
number = 6,
volume = 2,
place = {United States},
year = {Fri Jun 10 00:00:00 EDT 2016},
month = {Fri Jun 10 00:00:00 EDT 2016}
}

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