Readme for the source files for paper Kumari et al, Applied Physics A (2025) 131:650 Fig1.png: corresponds to Fig. 1 in the APA manuscript Fig2.png: corresponds to Fig. 2 in the APA manuscript Fig3.png: corresponds to Fig. 3 in the APA manuscript Fig4.png: corresponds to Fig. 4 in the APA manuscript Fig5.png: corresponds to Fig. 5 in the APA manuscript Fig 1.csv: data of Fig 1 in the APA manuscript Fig 4_a.csv:data of Fig4(a) in the APA manuscript Fig4_b.csv:data of Fig4(b) in the APA manuscript Fig4_c.csv:data of Fig4(c) in the APA manuscript Fig4_d.csv:data of Fig4(d) in the APA manuscript Fig5_a-d.csv:data of Fig5(a-d) in the APA manuscript Fig5_e.csv: data of Fig5(e) in the APA manuscript Fig5_f.csv: data of Fig5(f) in the APA manuscript Fig5_g.csv: data of Fig5(g) in the APA manuscript Fig5_h.csv: data of Fig5(h) in the APA manuscript