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Title: Ba2TeO: A new layered oxytelluride

Journal Article · · Journal of Solid State Chemistry
 [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)

Single crystals of the new semiconducting oxytelluride phase, Ba2TeO, were 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) angstrom, c = 9.9437(4) angstrom, Z = 2. The crystals were characterized by single crystal x-ray diffraction, heat capacity and optical measurements. The optical measurements along with electronic band structure calculations indicate semiconductor behavior with a band gap of 2.93 eV. Lastly, resistivity measurements show that Ba2TeO is highly insulating.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Florida State Univ., Tallahassee, FL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; SC0008832
OSTI ID:
1185703
Alternate ID(s):
OSTI ID: 1246685; OSTI ID: 1333507
Journal Information:
Journal of Solid State Chemistry, Vol. 222, Issue C; ISSN 0022-4596
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

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