1 School of Physics and Technology, Wuhan University, Wuhan 430072, China; 2 College of Physics and Electronic Science, Hubei Normal University, Huangshi 435002, China; 3 School of Physics and Telecommunications, Huanggang Normal University, Huanggang 438000, China; 4 Wuhan Maritime Communication Research Institute, Wuhan 430072, China
Abstract The geometric structure parameters and radial density distribution of 1s2sS excited state of the two-electron atomic system near the critical nuclear charge were calculated in detail under tripled Hylleraas basis set. Contrary to the localized behavior observed in the ground and the doubly excited 2p states, for this state our results identify that while the behavior of the inner electron increasingly resembles that of a hydrogen-like atomic system, the outer electron in the excited state exhibits diffused hydrogen-like character and becomes perpendicular to the inner electron as nuclear charge approaches . This study provides insights into the electronic structure and stability of the two-electron system in the vicinity of the critical nuclear charge.
Tong Chen(陈彤), Sanjiang Yang(杨三江), Wanping Zhou(周挽平), Xuesong Mei(梅雪松), and Haoxue Qiao(乔豪学) Geometric properties of the first singlet S-wave excited state of two-electron atoms near the critical nuclear charge 2024 Chin. Phys. B 33 103101
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Pits and adatoms at the interface of 1-ML C84/Ag (111) Wang Peng (王鹏), Zhang Han-Jie (张寒洁), Li Yan-Jun (李艳君), Sheng Chun-Qi (盛春荠), Li Wen-Jie (李文杰), Xing Xiu-Na (邢秀娜), Li Hai-Yang (李海洋), He Pi-Mo (何丕模), Bao Shi-Ning (鲍世宁), Li Hong-Nian (李宏年). Chin. Phys. B, 2013, 22(12): 126803.
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