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Title: Three-dimensional strain engineering in epitaxial vertically aligned nanocomposite thin films with tunable magnetotransport properties

Three-dimensional (3D) frameworks have been successfully constructed by interlayering La 0.7Sr 0.3MnO 3 (LSMO)–CeO 2 based epitaxial vertically aligned nanocomposite (VAN) thin films with pure CeO 2 (or LSMO) layers. Such 3D interconnected CeO 2 scaffolds integrate the lateral film strain by the interlayers with the vertical strain in VAN layers, and thus achieve the maximized strain tuning in LSMO. More importantly, by varying the types of the interlayers (i.e., CeO 2 or LSMO) and the number of interlayers from 1 to 3 layers, such 3D framework nanostructures effectively tune the electrical transport properties of LSMO, e.g., from a 3D insulating CeO 2 framework with integrated magnetic tunnel junction structures, to a 3D conducting LSMO framework, where the magnetoresistance (MR) peak values have been tuned systematically to a record high of 66% at 56 K and enhanced MR properties at high temperatures above room temperature (~325 K). This new 3D framed design provides a novel approach in maximizing film strain, enhancing strain-driven functionalities, and manipulating the electrical transport properties effectively.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [1] ; ORCiD logo [1]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Univ. of Cambridge (United Kingdom)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Report Number(s):
SAND-2018-10376J
Journal ID: ISSN 2051-6347; MHAOAL; 668078
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Materials Horizons
Additional Journal Information:
Journal Volume: 5; Journal Issue: 3; Journal ID: ISSN 2051-6347
Publisher:
Royal Society of Chemistry
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1477313

Sun, Xing, Huang, Jijie, Jian, Jie, Fan, Meng, Wang, Han, Li, Qiang, Mac Manus-Driscoll, Judith L., Lu, Ping, Zhang, Xinghang, and Wang, Haiyan. Three-dimensional strain engineering in epitaxial vertically aligned nanocomposite thin films with tunable magnetotransport properties. United States: N. p., Web. doi:10.1039/c8mh00216a.
Sun, Xing, Huang, Jijie, Jian, Jie, Fan, Meng, Wang, Han, Li, Qiang, Mac Manus-Driscoll, Judith L., Lu, Ping, Zhang, Xinghang, & Wang, Haiyan. Three-dimensional strain engineering in epitaxial vertically aligned nanocomposite thin films with tunable magnetotransport properties. United States. doi:10.1039/c8mh00216a.
Sun, Xing, Huang, Jijie, Jian, Jie, Fan, Meng, Wang, Han, Li, Qiang, Mac Manus-Driscoll, Judith L., Lu, Ping, Zhang, Xinghang, and Wang, Haiyan. 2018. "Three-dimensional strain engineering in epitaxial vertically aligned nanocomposite thin films with tunable magnetotransport properties". United States. doi:10.1039/c8mh00216a. https://www.osti.gov/servlets/purl/1477313.
@article{osti_1477313,
title = {Three-dimensional strain engineering in epitaxial vertically aligned nanocomposite thin films with tunable magnetotransport properties},
author = {Sun, Xing and Huang, Jijie and Jian, Jie and Fan, Meng and Wang, Han and Li, Qiang and Mac Manus-Driscoll, Judith L. and Lu, Ping and Zhang, Xinghang and Wang, Haiyan},
abstractNote = {Three-dimensional (3D) frameworks have been successfully constructed by interlayering La0.7Sr0.3MnO3 (LSMO)–CeO2 based epitaxial vertically aligned nanocomposite (VAN) thin films with pure CeO2 (or LSMO) layers. Such 3D interconnected CeO2 scaffolds integrate the lateral film strain by the interlayers with the vertical strain in VAN layers, and thus achieve the maximized strain tuning in LSMO. More importantly, by varying the types of the interlayers (i.e., CeO2 or LSMO) and the number of interlayers from 1 to 3 layers, such 3D framework nanostructures effectively tune the electrical transport properties of LSMO, e.g., from a 3D insulating CeO2 framework with integrated magnetic tunnel junction structures, to a 3D conducting LSMO framework, where the magnetoresistance (MR) peak values have been tuned systematically to a record high of 66% at 56 K and enhanced MR properties at high temperatures above room temperature (~325 K). This new 3D framed design provides a novel approach in maximizing film strain, enhancing strain-driven functionalities, and manipulating the electrical transport properties effectively.},
doi = {10.1039/c8mh00216a},
journal = {Materials Horizons},
number = 3,
volume = 5,
place = {United States},
year = {2018},
month = {4}
}

Works referenced in this record:

Enhancement of Ferroelectricity in Strained BaTiO3 Thin Films
journal, November 2004

Critical thickness for ferroelectricity in perovskite ultrathin films
journal, April 2003
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