Sensitivity of the electronic and magnetic structures of cuprate superconductors to density functional approximations
Journal Article
·
· npj Computational Materials
Abstract We discuss the crystal, electronic, and magnetic structures of La 2− x Sr x CuO 4 (LSCO) for x = 0.0 and x = 0.25 employing 13 density functional approximations, representing the local, semi-local, and hybrid exchange-correlation approximations within the Perdew–Schmidt hierarchy. The meta-generalized gradient approximation (meta-GGA) class of functionals is found to perform well in capturing the key properties of LSCO, a prototypical high-temperature cuprate superconductor. In contrast, the localspin-density approximation, GGA, and the hybrid density functional fail to capture the metal-insulator transition under doping.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE; USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC). Basic Energy Sciences (BES)
- Grant/Contract Number:
- 89233218CNA000001; AC02-05CH11231; FG02-07ER46352; SC0012432; SC0019350
- OSTI ID:
- 1844812
- Report Number(s):
- LA-UR-20-22984; 31; PII: 711
- Journal Information:
- npj Computational Materials, Journal Name: npj Computational Materials Journal Issue: 1 Vol. 8; ISSN 2057-3960
- Publisher:
- Nature Publishing GroupCopyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
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