Enhanced optical properties and mechanisms of Ba-doped LaMnO3 perovskite ceramic coating

Yu, Liuxu; Wang, Mingyuan; Hou, Haigang; Zhang, Xiangzhao; Lei, Shuangying; Liu, Junlin; Liu, Guiwu; Qiao, Guanjun

doi:10.1016/j.ceramint.2022.12.019

Cited by 4 publications

(2 citation statements)

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“…From Equation (8), one can conclude that an increasing magnetization M (see Figure 2, curves 1 and 2, for Ag and Ba ion doping with compressive strain) is related to a decrease of the bandgap energy

E_{\text{g}}

in LMO NPs with increasing the dopant, see Figure 3, curves 1 and 2. A decrease of the bandgap energy

E_{\text{g}}

is observed experimentally by Ag and Ba ion doping of bulk LMO by Aify et al [ 8 ] and Yu et al [ 7 ] respectively. Unfortunately, experimental data for the decrease of the bandgap energy

E_{\text{g}}

in ion‐doped LMO NPs are still missing.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

“…Doping LMO with various ions allows the adjustment of the bandgap energy

E_{\text{g}}

in both bulk and NP forms. [ 6–11 ]

E_{\text{g}}

is reduced by doping with ions like Ga, Gd, Fe, Co, Ba, and Ag, [ 6–9 ] while it increases with K or Ce substitution. [ 10,11 ] Such a contrary behavior in LMO could be caused by varying strains induced by the different ionic radii between the dopant and host ions.…”

Section: Introductionmentioning

confidence: 99%

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Bandgap Energy of Ion‐Doped LaMnO₃ Nanoparticles

Apostolov,

Apostolova,

Wesselinowa

2024

Physica Status Solidi (b)

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Based on the s‐d model combined with Green's function technique, the magnetization and the bandgap energy of ion‐doped nanoparticles at La sites are calculated. Due to the change of the valency of Mn ions, from to , as well as the difference between the ionic radii of the doping and host ions, the exchange interaction is modified which allows a tuning of the magnetization and the bandgap energy. For nanoparticles, the bandgap is decreased by Ag and Ba doping, whereas it is increased by K and Sr doping. Macroscopic quantities such as the magnetization and the bandgap energy are directly related to microscopic parameters of the model. The simulations are qualitatively in good agreement with the experimental data.

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E_{\text{g}}

in LMO NPs with increasing the dopant, see Figure 3, curves 1 and 2. A decrease of the bandgap energy

E_{\text{g}}

is observed experimentally by Ag and Ba ion doping of bulk LMO by Aify et al [ 8 ] and Yu et al [ 7 ] respectively. Unfortunately, experimental data for the decrease of the bandgap energy