1.Ji Yunqi et al., Unveiling a novel insulator-to-metal transition in La2NiO4+δ: Challenging high-temperature superconductivity claimed for single-layer lanthanum nickelates. Chinese Physics Letters, 2024, 41(9): 097402.
2. Ji Yunqi et al., Multifunctional Sm3+ modified layered perovskite La2Ti2O7 single crystals: Enhanced piezoelectric performance and color-stable orange emission. Applied Physics Letters, 2024, 125(26): 262904.