lws2=2

p  "response.dat_1" u 1:(-0.08617*  ($4)/($3) ) w l ti "sc1"
rep  "response.dat_2" u 1:(-0.08617*  ($4)/($3) ) w l ti "sc2"
rep  "response.dat_3" u 1:(-0.08617*  ($4)/($3) ) w l ti "sc3"

rep 0  lt -1 ti "" \
, "../../thermo_Bentien_c.dat" u 1:($2) w l lt 2 lw lws2 ti "Bentien_c"\
, "../../thermo_Bentien_a.dat" u 1:($2) w l lt 1 lw lws2 ti "Bentien_a"\
, "../../Bentien_S_FeSb2_poly.dat" u 1:($2) w l lt 3 lw lws2 ti "poly"\
, "../../Sun_FeSb2_film.dat" u 1:($2) w l lt 4 lw lws2 ti "film"