@article {650,
	title = {Prediction of quantum spin Hall and Rashba effects in two-dimensional ilmenite oxides},
	journal = {Chinese J. Phys.},
	volume = {86},
	year = {2023},
	pages = {242},
	abstract = {Using first-principles calculations, we investigate the structural, electronic, and topological properties of two-dimensional (2D) pristine ilmenite oxides ABO$_{3}$ (A~=~Au, Ag, or Cu; and B~=~Bi, Sb, or As) and their corresponding Janus structures. Phonon dispersions reveal the dynamic stability of these compounds. Interestingly, pristine CuBiO$_{3}$ and AuBiO$_{3}$, and Janus Cu$_{0}$.$_{5}$Ag$_{0}$.$_{5}$BiO$_{3}$, Au$_{0}$.$_{5}$Cu$_{0}$.$_{5}$BiO$_{3}$, Au$_{0}$.$_{5}$Ag$_{0}$.$_{5}$BiO$_{3}$, and CuBi$_{0}$.$_{5}$As$_{0}$.$_{5}$O$_{3}$ are topological insulators, while AuBi$_{0}$.$_{5}$As$_{0}$.$_{5}$O$_{3}$, CuBi$_{0}$.$_{5}$Sb$_{0}$.$_{5}$O$_{3}$, and AuBi$_{0}$.$_{5}$Sb$_{0}$.$_{5}$O$_{3}$ are topological semimetals, as confirmed by their Z2 invariance and conducting edge states under the hybrid functional approach. Moreover, we found van Hove singularities in Au$_{0}$.$_{5}$Ag$_{0}$.$_{5}$BiO$_{3}$ and Cu$_{0}$.$_{5}$Ag$_{0}$.$_{5}$BiO$_{3}$ near the Fermi level, suggesting the coexistence of superconductivity and nontrivial topology. Finally, isotropic Rashba spin-splitting is studied in detail for Au$_{0}$.$_{5}$Ag$_{0}$.$_{5}$BiO$_{3}$. Our findings demonstrate that 2D ilmenite oxides can be a new material playground for potential spintronic applications.},
	doi = {10.1016/j.cjph.2023.09.022},
	url = {https://www.sciencedirect.com/science/article/abs/pii/S0577907323001806},
	author = {Susaiammal Arokiasamy and Gennevieve M. Macam and Rovi Angelo B. Villaos and Aniceto B. Maghirang and Zhi-Quan Huang and Chia-Hsiu Hsu and Guoqing Chang and Feng-Chuan Chuang}
}