Doubly Excited ^1,3F_e States of Two-Electron Atoms under Weakly Coupled Plasma Environment ^*

S. Dutta,J. K. Saha,S. Bhattacharyya,T. K. Mukherjee

Table 4 Variation of energy eigenvalues (_E) for the 2pnf (n = 4-6) ^1,3F^e states of Be²⁺ and 2s, 2p states of Be³⁺w.r.t. the Debye screening length (D). All quantities are given in a.u.

D		¹F^e			³F^e		Be³十（2幻	Be³十（2p)
D	2p4f	2p5f	2p6f	2p4f	2p5f	2p6f	Be³十（2幻	Be³十（2p)
100	2.216 939	2.114 095	2.058 854	2.216 686	2.113 923	2.058 745	1.960 298	1.960 249
90	2.216 938	2.114 095	2.051 646	2.209 165	2.106 546	2.051 536	1.955 923	1.955 862
80	2.200 052	2.097 554	2.042 712	2.199 800	2.097 382	2.042 603	1.950 465	1.950 388
70	2.188 072	2.085 861	2.031 351	2.187 821	2.085 691	2.031 243	1.943 464	1.943 364
60	2.172 202	2.070 428	2.016 417	2.171 952	2.070 259	2.016 311	1.934 159	1.934 022
50	2.150 179	2.049 114	1.995 905	2.150 086	2.048 951	1.995 806	1.921 186	1.920 990
40	2.117 577	2.017 784	1.965 994	2.117 332	2.017 621	1.965 895	1.901 848	1.901 543
30	2.064 350	1.967 188	1.918 278	2.064 110	1.967 033	1.918 192	1.869 937	1.869 400
20	1.961 936	1.871 780	1.830 341	1.961 713	1.871 646	1.830 273	1.807 292	1.806 102
10	1.685 196	1.628 246	1.623 064	1.685 048	1.628 199	1.619 216	1.628 414	1.623 879