中国物理B ›› 2020, Vol. 29 ›› Issue (5): 53101-053101.doi: 10.1088/1674-1056/ab821c
• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇 下一篇
Xi-Tong Guo(郭希同), Yan-Mei Yu(于艳梅), Yong Liu(刘永), Bing-Bing Suo(索兵兵)
Xi-Tong Guo(郭希同)1,2, Yan-Mei Yu(于艳梅)2, Yong Liu(刘永)1, Bing-Bing Suo(索兵兵)3
摘要: Electric quadrupole moments of low-lying excited states of Yb+ are calculated by relativistic coupled-cluster theory with perturbations from external fields. The field-dependent energy differentiation provides accurate values of the electric quadrupole moments of 2P3/2, 2D3/2, 5/2, and 2F5/2,7/2 states which agree well with experimental values. The important role of the electronic correlation to the electric quadrupole moments is investigated. Our calculations indicate the early dispute of the electric quadrupole moment of the Yb+(2F7/2) state for which the measured and theoretical values have a large discrepancy. These electric quadrupole moment values can help us to determine the electric quadrupole shifts in start-of-the-art experiments of the Yb+ ion.
中图分类号: (Polarizabilities and other atomic and molecular properties)