Cluster models for point defect structure in La2CuO4+δ

Yue Wu, D. E. Ellis, Thomas O Mason

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We report theoretical studies on oxygen excess defect structure of lanthanum cuprate, La2CuO4+δ, using the Local Density formalism. The self-consistent Discrete Variational method has been used to find energy levels, densities of states, charge transfer, wavefunctions and potentials for a fragment consisting of N atoms embedded in the infinite crystal. Various possible interstitial oxygen positions and relative stability have been studied, including the structure suggested by Chaillout, et al. on the basis of neutron diffraction. Calculated electronic structures have been used to predict defect-related spectroscopic consequences.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium - Proceedings
PublisherMaterials Research Society
Pages201-207
Number of pages7
Volume341
Publication statusPublished - 1994
EventProceedings of the 1994 MRS Spring Meeting - San Francisco, CA, USA
Duration: Apr 5 1994Apr 7 1994

Other

OtherProceedings of the 1994 MRS Spring Meeting
CitySan Francisco, CA, USA
Period4/5/944/7/94

Fingerprint

Defect structures
Point defects
Oxygen
Lanthanum
Neutron diffraction
Wave functions
Electron energy levels
Electronic structure
Charge transfer
Atoms
Defects
Crystals
La2CuO4

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Wu, Y., Ellis, D. E., & Mason, T. O. (1994). Cluster models for point defect structure in La2CuO4+δ. In Materials Research Society Symposium - Proceedings (Vol. 341, pp. 201-207). Materials Research Society.

Cluster models for point defect structure in La2CuO4+δ. / Wu, Yue; Ellis, D. E.; Mason, Thomas O.

Materials Research Society Symposium - Proceedings. Vol. 341 Materials Research Society, 1994. p. 201-207.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wu, Y, Ellis, DE & Mason, TO 1994, Cluster models for point defect structure in La2CuO4+δ. in Materials Research Society Symposium - Proceedings. vol. 341, Materials Research Society, pp. 201-207, Proceedings of the 1994 MRS Spring Meeting, San Francisco, CA, USA, 4/5/94.
Wu Y, Ellis DE, Mason TO. Cluster models for point defect structure in La2CuO4+δ. In Materials Research Society Symposium - Proceedings. Vol. 341. Materials Research Society. 1994. p. 201-207
Wu, Yue ; Ellis, D. E. ; Mason, Thomas O. / Cluster models for point defect structure in La2CuO4+δ. Materials Research Society Symposium - Proceedings. Vol. 341 Materials Research Society, 1994. pp. 201-207
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