Magnetic interplay of Mn and Yb sites in YbMn2Si2 – Crystal field splitting

Mole, Richard A.; Cortie, David; Hofmann, M.; Wang, Jianli; Hutchison, W. D.; Yu, Dehong; Wang, Xiaolin; Campbell, S. J.

doi:10.1016/j.jallcom.2020.155316

Cited by 2 publications

(2 citation statements)

References 38 publications

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“…On the contrary, the substitution of Mn 2+ (r = 0.96 Å, CN = 8) for the dodecahedral Ca 2+ (r = 1.12 Å, CN = 8) causes the shrinkage of the crystal lattice and the strengthening of the crystal field. 24,25 Accordingly, as shown in the Tanabe−Sugano diagram of Mn 2+ in Figure 3d, the PL emission band centered at 536 nm of the sample should be ascribed to Mn 2+ at the octahedral Zn 2+ sites and that at 676 nm should correspond to Mn 2+ at the dodecahedral Ca 2+ sites. 26,27 3.3.…”

Section: Methodsmentioning

confidence: 99%

Advanced Luminescence Anticounterfeiting Based on Dynamic Photoluminescence and Non-Pre-Irradiation Mechanoluminescence

Wang

Dong

et al. 2022

Inorg. Chem.

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Luminescence anticounterfeiting is one of the most significant technologies to protect information security. However, the luminescence of the present anticounterfeiting logo is static, which is easily counterfeited by substitutes, and it always requires an ultraviolet lamp in use, which is inconvenient in application. In this work, according to the present deficiencies of luminescence anticounterfeiting, an interesting phosphor CaZnGe2O6/Mn2+ with unique features of dynamic photoluminescence and non-pre-irradiation mechanoluminescence is developed for the first time. The photoluminescence color of the phosphor can dynamically change from green to red during irradiation, and the non-pre-irradiation mechanoluminescence of the phosphor-based elastomer can be easily stimulated by mechanics such as stretching, bending, or scratching with a finger. By combining the two features of the CaZnGe2O6/Mn2+ phosphor, an advanced dual-mode luminescence anticounterfeiting is designed, and a luminescence logo is fabricated for the anticounterfeiting test. The result demonstrates that this advanced luminescence anticounterfeiting based on the phosphor is not only safer but also more convenient in application.

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Section: Methodsmentioning

confidence: 99%

Advanced Luminescence Anticounterfeiting Based on Dynamic Photoluminescence and Non-Pre-Irradiation Mechanoluminescence

Wang

Dong

et al. 2022

Inorg. Chem.

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“…Magnetic studies found that RMn2Si2 compounds are either ferromagnetic or antiferromagnetic [3,4]. Nevertheless, the various studies devoted to RMn2Si2 (R = La, Ce, Yb, Y, Pr, Nd, Sm, Gd) [2,[5][6][7][8] found some discrepancies.…”

Section: -Introductionmentioning

confidence: 99%

Origin of the Dzyaloshinskii-Moriya Interactions in the Intermetallic RMn2Si2 ( R= La, Ce, Yb and Y) Materials: A DFT Study

Bazine

Tahiri

Elbounagui

et al. 2021

Preprint

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The Dzyaloshinskii-Moriya interactions (DM) are investigated using first-principles calculations by means of the WIENNCM code, an implementation of the FP-LAPW method. The intermetallic RMn2Si2 (R = La, Ce, Yb, and Y) materials exhibit a large spin-orbit effect after the density of states; they found a strong hybridization between Mn-Si and Mn-R atoms. Also, show a large noncollinear magnetic configuration depending on the R atoms. By using ab-initio calculations, the RKKY effect is observed in the RMn2Si2 materials, which shows explicitly the existence of the giant magnetoresistance (GMR) in these materials. Explicitly, the mechanisms responsible for the magnetoelectric coupling are due to relatively the effect of the presence of the Dzyaloshinskii-Moriya term.

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Magnetic interplay of Mn and Yb sites in YbMn2Si2 – Crystal field splitting

Cited by 2 publications

References 38 publications

Advanced Luminescence Anticounterfeiting Based on Dynamic Photoluminescence and Non-Pre-Irradiation Mechanoluminescence

Advanced Luminescence Anticounterfeiting Based on Dynamic Photoluminescence and Non-Pre-Irradiation Mechanoluminescence

Origin of the Dzyaloshinskii-Moriya Interactions in the Intermetallic RMn2Si2 ( R= La, Ce, Yb and Y) Materials: A DFT Study

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