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Title: Self-assembled Co-BaZrO 3 nanocomposite thin films with ultra-fine vertically aligned Co nanopillars

Abstract

A simple one-step pulsed laser deposition (PLD) method has been applied to grow self-assembled metal-oxide nanocomposite thin films. The as-deposited Co-BaZrO 3 films show high epitaxial quality with ultra-fine vertically aligned Co nanopillars (diameter <5 nm) embeded in BZO matrix. The diameter of the nanopillars can be further tuned by varying the deposition frequency. The metal and oxide phases grow separately without inter-diffusion or mixing. Taking advantage of this unique structure, a high saturation magnetization of ~1375 emu/cm 3 in the Co- BaZrO 3 nanocomposites has been achieved and further confirmed by Lorentz microscopy imaging in TEM. Furthermore, the coercivity values of this nanocomposite thin films range from 600 Oe (20 Hz) to 1020 Oe (2 Hz), which makes the nanocomposite an ideal candidate for high-density perpendicular recording media.

Authors:
 [1];  [2];  [3];  [1];  [1];  [1]; ORCiD logo [4]
  1. Purdue Univ., West Lafayette, IN (United States)
  2. Texas A & M Univ., College Station, TX (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Purdue Univ., West Lafayette, IN (United States); Texas A & M Univ., College Station, TX (United States)
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Security (NA-70)
OSTI Identifier:
1365810
Report Number(s):
SAND-2017-1871J
Journal ID: ISSN 2040-3364; NANOHL; 654097
Grant/Contract Number:  
AC04-94AL85000
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Nanoscale
Additional Journal Information:
Journal Volume: 9; Journal Issue: 23; Journal ID: ISSN 2040-3364
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; metal-oxide nanocomposite; magnetic metal nanopillar; self-assembled; anisotropic magnetic property

Citation Formats

Huang, Jijie, Li, Leigang, Lu, Ping, Qi, Zhimin, Sun, Xing, Zhang, Xinghang, and Wang, Haiyan. Self-assembled Co-BaZrO 3 nanocomposite thin films with ultra-fine vertically aligned Co nanopillars. United States: N. p., 2017. Web. doi:10.1039/c7nr01122a.
Huang, Jijie, Li, Leigang, Lu, Ping, Qi, Zhimin, Sun, Xing, Zhang, Xinghang, & Wang, Haiyan. Self-assembled Co-BaZrO 3 nanocomposite thin films with ultra-fine vertically aligned Co nanopillars. United States. doi:10.1039/c7nr01122a.
Huang, Jijie, Li, Leigang, Lu, Ping, Qi, Zhimin, Sun, Xing, Zhang, Xinghang, and Wang, Haiyan. Thu . "Self-assembled Co-BaZrO 3 nanocomposite thin films with ultra-fine vertically aligned Co nanopillars". United States. doi:10.1039/c7nr01122a. https://www.osti.gov/servlets/purl/1365810.
@article{osti_1365810,
title = {Self-assembled Co-BaZrO 3 nanocomposite thin films with ultra-fine vertically aligned Co nanopillars},
author = {Huang, Jijie and Li, Leigang and Lu, Ping and Qi, Zhimin and Sun, Xing and Zhang, Xinghang and Wang, Haiyan},
abstractNote = {A simple one-step pulsed laser deposition (PLD) method has been applied to grow self-assembled metal-oxide nanocomposite thin films. The as-deposited Co-BaZrO3 films show high epitaxial quality with ultra-fine vertically aligned Co nanopillars (diameter <5 nm) embeded in BZO matrix. The diameter of the nanopillars can be further tuned by varying the deposition frequency. The metal and oxide phases grow separately without inter-diffusion or mixing. Taking advantage of this unique structure, a high saturation magnetization of ~1375 emu/cm3 in the Co- BaZrO3 nanocomposites has been achieved and further confirmed by Lorentz microscopy imaging in TEM. Furthermore, the coercivity values of this nanocomposite thin films range from 600 Oe (20 Hz) to 1020 Oe (2 Hz), which makes the nanocomposite an ideal candidate for high-density perpendicular recording media.},
doi = {10.1039/c7nr01122a},
journal = {Nanoscale},
number = 23,
volume = 9,
place = {United States},
year = {Thu May 11 00:00:00 EDT 2017},
month = {Thu May 11 00:00:00 EDT 2017}
}

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