Role of MgB2/Cr2O3 nano-interfaces in photoinduced nonlinear optical treatment of the MgB2 superconducting films

Alzayed, Nasser S.; Kityk, I.V.; Ozga, K.; Fedorchuk, A.O.; Soltan, S.; Shahabuddin, Mohammad; El-Naggar, A.M.

doi:10.1016/j.physe.2014.05.022

Cited by 3 publications

(3 citation statements)

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“…In our approach, we showed an occurrence of some charge density acentricity (see Figure 5). Therefore, it should play a principal role in the optically stimulated second order optical dispersion and is in agreement with the corresponding experimental data [17,25]. …”

Section: Resultssupporting

confidence: 88%

“…Additionally, we have superimposed the effective electric field which was equivalent to the photoexcitation by the two coherent beams used in the reference [17]. The changes of the effective electronic charge density due to photoexcitaion also were taken into account.…”

Section: Resultsmentioning

confidence: 99%

“…In the paper [5], possible mechanisms of such process were discussed based on the analysis of inter-atomic distances. To perform the mentioned structural optimization we have used the basic structural results given in the references [17,18,19]. Following the classical molecular dynamics simulations, a formation of intermediate MgCr 2 O 4 crystalline structure is more likely [20].…”

Section: Theoretical Calculationsmentioning

confidence: 99%

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Band Structure Simulations of the Photoinduced Changes in the MgB2:Cr Films

et al. 2015

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An approach for description of the photoinduced nonlinear optical effects in the superconducting MgB2:Cr2O3 nanocrystalline film is proposed. It includes the molecular dynamics step-by-step optimization of the two separate crystalline phases. The principal role for the photoinduced nonlinear optical properties plays nanointerface between the two phases. The first modified layers possess a form of slightly modified perfect crystalline structure. The next layer is added to the perfect crystalline structure and the iteration procedure is repeated for the next layer. The total energy here is considered as a varied parameter. To avoid potential jumps on the borders we have carried out additional derivative procedure.

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Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%