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Title: Ba 2TeO: A new layered oxytelluride

Abstract

For single crystals of the new semiconducting oxytelluride phase, Ba 2TeO, we synthesized from barium oxide powder and elemental tellurium in a molten barium metal flux. Ba 2TeO crystallizes in tetragonal symmetry with space group P4/nmm (#129), a=5.0337(1) Å, c=9.9437(4) Å, Z=2. The crystals were characterized by single crystal x-ray diffraction, heat capacity and optical measurements. Moreover, the optical measurements along with electronic band structure calculations indicate semiconductor behavior with a band gap of 2.93 eV. Resistivity measurements show that Ba 2TeO is highly insulating.

Authors:
 [1];  [2];  [3];  [4];  [1];  [1];  [5];  [2]
  1. Condensed Matter Sciences Dept., Tallahassee, FL (United States)
  2. Condensed Matter Sciences Dept., Tallahassee, FL (United States); Florida State Univ., Tallahassee, FL (United States)
  3. Condensed Matter Sciences Dept., Tallahassee, FL (United States); Florida State Univ., Tallahassee, FL (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Condensed Matter Sciences Dept., Tallahassee, FL (United States); Specialized Crystal Processing, Inc., Tallahassee, FL (United States)
  5. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Florida State Univ., Tallahassee, FL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1185703
Alternate Identifier(s):
OSTI ID: 1246685; OSTI ID: 1333507
Grant/Contract Number:  
AC05-00OR22725; SC0008832
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 222; Journal Issue: C; Journal ID: ISSN 0022-4596
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; oxytelluride; single crystal growth; single crystal x-ray diffraction; layered structure; semiconductor

Citation Formats

Besara, T., Ramirez, D., Sun, J., Whalen, J. B., Tokumoto, T. D., McGill, S. A., Singh, D. J., and Siegrist, T. Ba2TeO: A new layered oxytelluride. United States: N. p., 2015. Web. doi:10.1016/j.jssc.2014.11.003.
Besara, T., Ramirez, D., Sun, J., Whalen, J. B., Tokumoto, T. D., McGill, S. A., Singh, D. J., & Siegrist, T. Ba2TeO: A new layered oxytelluride. United States. doi:10.1016/j.jssc.2014.11.003.
Besara, T., Ramirez, D., Sun, J., Whalen, J. B., Tokumoto, T. D., McGill, S. A., Singh, D. J., and Siegrist, T. Sun . "Ba2TeO: A new layered oxytelluride". United States. doi:10.1016/j.jssc.2014.11.003. https://www.osti.gov/servlets/purl/1185703.
@article{osti_1185703,
title = {Ba2TeO: A new layered oxytelluride},
author = {Besara, T. and Ramirez, D. and Sun, J. and Whalen, J. B. and Tokumoto, T. D. and McGill, S. A. and Singh, D. J. and Siegrist, T.},
abstractNote = {For single crystals of the new semiconducting oxytelluride phase, Ba2TeO, we synthesized from barium oxide powder and elemental tellurium in a molten barium metal flux. Ba2TeO crystallizes in tetragonal symmetry with space group P4/nmm (#129), a=5.0337(1) Å, c=9.9437(4) Å, Z=2. The crystals were characterized by single crystal x-ray diffraction, heat capacity and optical measurements. Moreover, the optical measurements along with electronic band structure calculations indicate semiconductor behavior with a band gap of 2.93 eV. Resistivity measurements show that Ba2TeO is highly insulating.},
doi = {10.1016/j.jssc.2014.11.003},
journal = {Journal of Solid State Chemistry},
number = C,
volume = 222,
place = {United States},
year = {Sun Feb 01 00:00:00 EST 2015},
month = {Sun Feb 01 00:00:00 EST 2015}
}

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