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Title: Oxygen content tailored magnetic and electronic properties in cobaltite double perovskite thin films

Oxygen content in transition metal oxides is one of the most important parameters to control for the desired physical properties. Recently, we have systematically studied the oxygen content and property relationship of the double perovskite PrBaCo 2O 5.5+δ (PBCO) thin films deposited on the LaAlO 3 substrates. The oxygen content in the films was varied by in-situ annealing in a nitrogen, oxygen, or ozone environment. Associated with the oxygen content, the out-of-plane lattice parameter progressively decreases with increasing oxygen content in the films. The saturated magnetization shows a drastic increase and resistivity is significantly reduced in the ozone annealed samples, indicating the strong coupling between physical properties and oxygen content. Furthermore, these results demonstrate that the magnetic properties of PBCO films are highly dependent on the oxygen contents, or the film with higher oxygen uptake has the largest magnetization.
Authors:
ORCiD logo [1] ; ORCiD logo [2] ; ORCiD logo [2] ;  [2] ;  [3] ; ORCiD logo [2] ; ORCiD logo [4] ;  [3]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Texas at San Antonio, San Antonio, TX (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  3. Univ. of Texas at San Antonio, San Antonio, TX (United States)
  4. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. at Buffalo - The State Univ. of New York, Buffalo, NY (United States)
Publication Date:
Report Number(s):
LA-UR-16-27359
Journal ID: ISSN 0003-6951; APPLAB; TRN: US1800656
Grant/Contract Number:
AC52-06NA25396
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 110; Journal Issue: 9; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Research Org:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org:
USDOE Laboratory Directed Research and Development (LDRD) Program
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; thin films; magnetic and electronic properties; oxygen content
OSTI Identifier:
1414131
Alternate Identifier(s):
OSTI ID: 1348270

Harrell, Zach John, Enriquez, Erik M., Chen, Aiping, Dowden, Paul Charles, Mace, Brennan, Lu, Xujie, Jia, Quanxi, and Chen, Chonglin. Oxygen content tailored magnetic and electronic properties in cobaltite double perovskite thin films. United States: N. p., Web. doi:10.1063/1.4977026.
Harrell, Zach John, Enriquez, Erik M., Chen, Aiping, Dowden, Paul Charles, Mace, Brennan, Lu, Xujie, Jia, Quanxi, & Chen, Chonglin. Oxygen content tailored magnetic and electronic properties in cobaltite double perovskite thin films. United States. doi:10.1063/1.4977026.
Harrell, Zach John, Enriquez, Erik M., Chen, Aiping, Dowden, Paul Charles, Mace, Brennan, Lu, Xujie, Jia, Quanxi, and Chen, Chonglin. 2017. "Oxygen content tailored magnetic and electronic properties in cobaltite double perovskite thin films". United States. doi:10.1063/1.4977026. https://www.osti.gov/servlets/purl/1414131.
@article{osti_1414131,
title = {Oxygen content tailored magnetic and electronic properties in cobaltite double perovskite thin films},
author = {Harrell, Zach John and Enriquez, Erik M. and Chen, Aiping and Dowden, Paul Charles and Mace, Brennan and Lu, Xujie and Jia, Quanxi and Chen, Chonglin},
abstractNote = {Oxygen content in transition metal oxides is one of the most important parameters to control for the desired physical properties. Recently, we have systematically studied the oxygen content and property relationship of the double perovskite PrBaCo2O5.5+δ (PBCO) thin films deposited on the LaAlO3 substrates. The oxygen content in the films was varied by in-situ annealing in a nitrogen, oxygen, or ozone environment. Associated with the oxygen content, the out-of-plane lattice parameter progressively decreases with increasing oxygen content in the films. The saturated magnetization shows a drastic increase and resistivity is significantly reduced in the ozone annealed samples, indicating the strong coupling between physical properties and oxygen content. Furthermore, these results demonstrate that the magnetic properties of PBCO films are highly dependent on the oxygen contents, or the film with higher oxygen uptake has the largest magnetization.},
doi = {10.1063/1.4977026},
journal = {Applied Physics Letters},
number = 9,
volume = 110,
place = {United States},
year = {2017},
month = {2}
}