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Title: Gd-doped BaSnO3: A transparent conducting oxide with localized magnetic moments

Abstract

We have synthesized transparent, conducting, paramagnetic stannate thin films via rare-earth doping of BaSnO3. Gd3+(4f7) substitution on the Ba2+ site results in optical transparency in the visible regime, low resistivities, and high electron mobilities, along with a significant magnetic moment. Pulsed laser deposition was used to stabilize epitaxial Ba0.96Gd0.04SnO3 thin films on (001) SrTiO3 substrates, and compared with Ba0.96La0.04SnO3 and undoped BaSnO3 thin films. Gd as well as La doping schemes result in electron mobilities at room temperature that exceed those of conventional complex oxides, with values as high as 60 cm2/V·s (n = 2.5 × 1020cm-3) and 30 cm2/V·s (n = 1 × 1020cm-3) for La and Gd doping, respectively. The resistivity shows little temperature dependence across a broad temperature range, indicating that in both types of films the transport is not dominated by phonon scattering. Gd-doped BaSnO3 films have a strong magnetic moment of ~7 μB/Gd ion. Such an optically transparent conductor with localized magnetic moments may unlock opportunities for multifunctional devices in the design of next-generation displays and photovoltaics.

Authors:
ORCiD logo [1]; ORCiD logo [2];  [2];  [2];  [1]
  1. Stanford Univ., CA (United States)
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1530225
Alternate Identifier(s):
OSTI ID: 1236282
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 108; Journal Issue: 4; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Alaan, Urusa S., Shafer, Padraic, N'Diaye, Alpha T., Arenholz, Elke, and Suzuki, Y. Gd-doped BaSnO3: A transparent conducting oxide with localized magnetic moments. United States: N. p., 2016. Web. doi:10.1063/1.4939686.
Alaan, Urusa S., Shafer, Padraic, N'Diaye, Alpha T., Arenholz, Elke, & Suzuki, Y. Gd-doped BaSnO3: A transparent conducting oxide with localized magnetic moments. United States. doi:10.1063/1.4939686.
Alaan, Urusa S., Shafer, Padraic, N'Diaye, Alpha T., Arenholz, Elke, and Suzuki, Y. Mon . "Gd-doped BaSnO3: A transparent conducting oxide with localized magnetic moments". United States. doi:10.1063/1.4939686. https://www.osti.gov/servlets/purl/1530225.
@article{osti_1530225,
title = {Gd-doped BaSnO3: A transparent conducting oxide with localized magnetic moments},
author = {Alaan, Urusa S. and Shafer, Padraic and N'Diaye, Alpha T. and Arenholz, Elke and Suzuki, Y.},
abstractNote = {We have synthesized transparent, conducting, paramagnetic stannate thin films via rare-earth doping of BaSnO3. Gd3+(4f7) substitution on the Ba2+ site results in optical transparency in the visible regime, low resistivities, and high electron mobilities, along with a significant magnetic moment. Pulsed laser deposition was used to stabilize epitaxial Ba0.96Gd0.04SnO3 thin films on (001) SrTiO3 substrates, and compared with Ba0.96La0.04SnO3 and undoped BaSnO3 thin films. Gd as well as La doping schemes result in electron mobilities at room temperature that exceed those of conventional complex oxides, with values as high as 60 cm2/V·s (n = 2.5 × 1020cm-3) and 30 cm2/V·s (n = 1 × 1020cm-3) for La and Gd doping, respectively. The resistivity shows little temperature dependence across a broad temperature range, indicating that in both types of films the transport is not dominated by phonon scattering. Gd-doped BaSnO3 films have a strong magnetic moment of ~7 μB/Gd ion. Such an optically transparent conductor with localized magnetic moments may unlock opportunities for multifunctional devices in the design of next-generation displays and photovoltaics.},
doi = {10.1063/1.4939686},
journal = {Applied Physics Letters},
number = 4,
volume = 108,
place = {United States},
year = {2016},
month = {1}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 11 works
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Figures / Tables:

Figure 1 Figure 1: La-doped and Gd-doped BaSnO3 films are colorless and transparent. A (001) SrTiO3 substrate is shown for comparison.

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      Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.