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Title: Interconversion of intrinsic defects in SrTi O 3 ( 001 )

Abstract

Photoemission deep in the SrTiO 3(001) band gap is found to be ubiquitous in bulk crystals and epitaxial films for all doping levels. Such features are present even when there is little signal near the Fermi level. This result challenges earlier conclusions about deep features being derived from the metallic band associated with free carriers. Rather, our data point to these states resulting from interstitial oxygen and its interaction with donor electrons.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1455258
Report Number(s):
PNNL-SA-131613
Journal ID: ISSN 2469-9950; PRBMDO; 49306; KC0203020
DOE Contract Number:
AC05-76RL01830
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review B; Journal Volume: 97; Journal Issue: 24
Country of Publication:
United States
Language:
English
Subject:
Environmental Molecular Sciences Laboratory

Citation Formats

Chambers, S. A., Du, Y., Zhu, Z., Wang, J., Wahila, M. J., Piper, L. F. J., Prakash, A., Yue, J., Jalan, B., Spurgeon, S. R., Kepaptsoglou, D. M., Ramasse, Q. M., and Sushko, P. V. Interconversion of intrinsic defects in SrTiO3(001). United States: N. p., 2018. Web. doi:10.1103/PhysRevB.97.245204.
Chambers, S. A., Du, Y., Zhu, Z., Wang, J., Wahila, M. J., Piper, L. F. J., Prakash, A., Yue, J., Jalan, B., Spurgeon, S. R., Kepaptsoglou, D. M., Ramasse, Q. M., & Sushko, P. V. Interconversion of intrinsic defects in SrTiO3(001). United States. doi:10.1103/PhysRevB.97.245204.
Chambers, S. A., Du, Y., Zhu, Z., Wang, J., Wahila, M. J., Piper, L. F. J., Prakash, A., Yue, J., Jalan, B., Spurgeon, S. R., Kepaptsoglou, D. M., Ramasse, Q. M., and Sushko, P. V. Fri . "Interconversion of intrinsic defects in SrTiO3(001)". United States. doi:10.1103/PhysRevB.97.245204.
@article{osti_1455258,
title = {Interconversion of intrinsic defects in SrTiO3(001)},
author = {Chambers, S. A. and Du, Y. and Zhu, Z. and Wang, J. and Wahila, M. J. and Piper, L. F. J. and Prakash, A. and Yue, J. and Jalan, B. and Spurgeon, S. R. and Kepaptsoglou, D. M. and Ramasse, Q. M. and Sushko, P. V.},
abstractNote = {Photoemission deep in the SrTiO3(001) band gap is found to be ubiquitous in bulk crystals and epitaxial films for all doping levels. Such features are present even when there is little signal near the Fermi level. This result challenges earlier conclusions about deep features being derived from the metallic band associated with free carriers. Rather, our data point to these states resulting from interstitial oxygen and its interaction with donor electrons.},
doi = {10.1103/PhysRevB.97.245204},
journal = {Physical Review B},
number = 24,
volume = 97,
place = {United States},
year = {Fri Jun 01 00:00:00 EDT 2018},
month = {Fri Jun 01 00:00:00 EDT 2018}
}