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Bandgap and electronic structure of CaSiN 2 : Experiment and theory

Journal Article · · International Journal of Applied Ceramic Technology
DOI:https://doi.org/10.1111/ijac.14137· OSTI ID:2422580
 [1];  [2];  [3];  [4];  [1]
  1. Department of Physics and Engineering Physics University of Saskatchewan Saskatoon Canada
  2. Canadian Light Source Saskatoon Saskatchewan Canada
  3. Karlsruhe Institute of Technology (KIT) Institute for Applied Materials (IAM) Eggenstein‐Leopoldshafen Germany
  4. Department of Chemistry University of Munich (LMU) Munich Germany

Abstract

We interrogate the electronic properties of the nitridosilicate CaSiN2as determined using soft X‐ray absorption and emission spectroscopy, which probe directly the partial electronic density of states. We compare our measurements to full potential, all electron density functional theory (DFT) calculations. Good agreement between experiment and theory is obtained, and the electronic bandgap of CaSiN2is determined to be 3.95 ± 0.3 eV, in contrast with our predicted value of 4.78 eV that was calculated using the modified Becke–Johnson exchange‐correlation functional with the DFT framework.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231
OSTI ID:
2422580
Journal Information:
International Journal of Applied Ceramic Technology, Journal Name: International Journal of Applied Ceramic Technology Journal Issue: 1 Vol. 20; ISSN 1546-542X
Publisher:
Wiley
Country of Publication:
United States
Language:
English

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