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Dr Urmimala Dey's Outputs (7)

Symmetry-informed design of magnetoelectric coupling in the manganite perovskite CeBaMn 2 O 6 (2024)
Journal Article
Simpson, S., Scott, C. A. M., Pomiro, F., Tidey, J. P., Dey, U., Orlandi, F., Manuel, P., Lees, M. R., Hong, Z.-M., Chen, W.-T., Bristowe, N. C., & Senn, M. S. (online). Symmetry-informed design of magnetoelectric coupling in the manganite perovskite CeBaMn 2 O 6. Journal of Materials Chemistry C Materials for optical and electronic devices, https://doi.org/10.1039/d4tc02743d

Magnetoelectric multiferroics hold great promise for the development of new sustainable memory devices. However, practical applications of many existing multiferroic materials are infeasible due to the weak nature of the coupling between the magnetic... Read More about Symmetry-informed design of magnetoelectric coupling in the manganite perovskite CeBaMn 2 O 6.

Symmetry-informed design of magnetoelectric coupling in the manganite perovskite CeBaMn2O6 (2024)
Journal Article
Simpson, S., Scott, C. A. M., Pomiro, F., Tidey, J. P., Dey, U., Orlandi, F., Manuel, P., Lees, M. R., Hong, Z.-M., Chen, W.-T., Bristowe, N. C., & Senn, M. S. (online). Symmetry-informed design of magnetoelectric coupling in the manganite perovskite CeBaMn2O6. Journal of Materials Chemistry C Materials for optical and electronic devices, https://doi.org/10.1039/d4tc02743d

Magnetoelectric multiferroics hold great promise for the development of new sustainable memory devices. However, practical applications of many existing multiferroic materials are infeasible due to the weak nature of the coupling between the magnetic... Read More about Symmetry-informed design of magnetoelectric coupling in the manganite perovskite CeBaMn2O6.

Structural origins of dielectric anomalies in the filled tetragonal tungsten bronze Sr 2 NaNb 5 O 15 (2024)
Journal Article
Tidey, J., Dey, U., Sanchez, A., Chen, W., Chen, B., Chuang, Y., …Senn, M. (2024). Structural origins of dielectric anomalies in the filled tetragonal tungsten bronze Sr 2 NaNb 5 O 15. Communications Materials, 5(1), Article 71. https://doi.org/10.1038/s43246-024-00508-1

The tetragonal tungsten bronze, Sr2NaNb5O15, shows promise for application in high-temperature high-efficiency capacitors vital for the sustainable energy revolution. Previously, the structural complexity of this and related materials has obscured th... Read More about Structural origins of dielectric anomalies in the filled tetragonal tungsten bronze Sr 2 NaNb 5 O 15.

First-principles investigation of the magnetoelectric properties of Ba 7 Mn 4 O 15 (2023)
Journal Article
Dey, U., Senn, M. S., & Bristowe, N. (2024). First-principles investigation of the magnetoelectric properties of Ba 7 Mn 4 O 15. Journal of Physics: Condensed Matter, 36(9), Article 095701. https://doi.org/10.1088/1361-648x/ad0d27

Type-II multiferroics, in which the magnetic order breaks inversion symmetry, are appealing for both fundamental and applied research due their intrinsic coupling between magnetic and electrical orders. Using first-principles calculations we study th... Read More about First-principles investigation of the magnetoelectric properties of Ba 7 Mn 4 O 15.

Electric field and strain-induced band-gap engineering and manipulation of the Rashba spin splitting in Janus van der Waals heterostructures (2022)
Journal Article
Patel, S., Dey, U., Adhikari, N. P., & Taraphder, A. (2022). Electric field and strain-induced band-gap engineering and manipulation of the Rashba spin splitting in Janus van der Waals heterostructures. Physical Review B, 106(3), Article 035125. https://doi.org/10.1103/physrevb.106.035125

The compositional as well as structural asymmetries in Janus transition metal dichalcogenides (J-TMDs) and their van der Waals heterostructures (vdW HSs) induce an intrinsic Rashba spin splitting. We investigate the variation of band gaps and the Ras... Read More about Electric field and strain-induced band-gap engineering and manipulation of the Rashba spin splitting in Janus van der Waals heterostructures.

Multiple low-energy excitons and optical response of d0 double perovskite Ba2ScTaO6 (2022)
Journal Article
Himanshu, A., Kumar, S., Dey, U., & Ray, R. (2022). Multiple low-energy excitons and optical response of d0 double perovskite Ba2ScTaO6. Physica B: Condensed Matter, 637, Article 413856. https://doi.org/10.1016/j.physb.2022.413856

Large bandgap insulators are considered promising for applications such as photocatalysts, dielectric resonators and interference lters. Based on synchrotron X-ray diraction, diuse re ectance measurement and density functional theory, we report the c... Read More about Multiple low-energy excitons and optical response of d0 double perovskite Ba2ScTaO6.