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Quasiparticle band structure of lanthanum hydride

Journal Article · · Physical Review B
OSTI ID:795355

We address the problem of the ground-state character of LaH3, a semiconductor compound predicted to be semimetallic within density-functional theory. An ab initio, quasiparticle calculation is performed whose results indicate a very large 1.1 eV opening of the band gap. Such results are obtained using the GW approximation in the calculation of the self-energy operator. The results are compared to existing experimental data.

Research Organization:
Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
Sponsoring Organization:
USDOE Director, Office of Science. Office of Basic Energy Studies. Division of Materials Sciences; National Science Foundation (US)
DOE Contract Number:
AC03-76SF00098
OSTI ID:
795355
Report Number(s):
LBNL--49830
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 15 Vol. 64
Country of Publication:
United States
Language:
English

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