Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2020, Vol. 31 ›› Issue (3): 25 doi: 10.1007/s41365-020-0738-4


Monte Carlo simulation of lattice analysis of complex LaCeTh0.1CuOy using ion bombardment technique

M. E. Emetere1,2   

  1. 1 Department of Physics, Covenant University Canaanland, P.M.B 1023, Ota, Nigeria
    2 Department of Mechanical Engineering Science, University of Johannesburg, Johannesburg, South Africa
  • Received:2019-11-23 Revised:2020-01-17 Accepted:2020-01-20
  • Supported by:
    The author appreciates the partial sponsorship of the Covenant University, Nigeria, and University of Johannesburg.
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M. E. Emetere. Monte Carlo simulation of lattice analysis of complex LaCeTh0.1CuOy using ion bombardment technique.Nuclear Science and Techniques, 2020, 31(3): 25     doi: 10.1007/s41365-020-0738-4

Abstract: Ion bombardment analysis of perovskite materials is challenging owing to their peculiar structure. This shortcoming renders the reliability on the technique somewhat questionable. In this research, three structured modifications (i.e., scan angle, low energy, and large ion bombardment) were adopted to improve the ion bombardment analysis of 99,999 ions using Monte Carlo simulations. The modified technique was used to analyze the effects of a chemically pressurized ‘‘A’’ site in the perovskite lattice system. The LaCeTh0.1Cu2Oy compound was used in this experiment. Despite the low probing energy, it was observed that the high number of ions bombarding the material resulted in external pressure on the lattice structure of the material. Moreover, the chemically pressurized ‘‘A’’ site perovskite material was characterized by lattice mismatch, lattice fluctuations, grain boundary collapse, and oxygen displacement. The novel discovery of this research is the inter- and intra-extended lattice mismatches that are likely to connect. Hence, further investigation of the connection between inter- and intraextended lattice mismatches is recommended as they may enable fabrication of room-temperature superconductors.

Key words: Lattice mismatch, Ion bombardment, Chemical pressure, Scan angle