TY - JOUR T1 - Thermal behavior change in the self-focusing of an intense laser beam in the magnetized electron-ion-positron plasma TT - تغییر رفتار دمایی در خود کانونگی باریکه لیزری در پلاسمای الکترون-یون-پوزیترون مغناطیده JF - opsi JO - opsi VL - 20 IS - 0 UR - http://opsi.ir/article-1-182-en.html Y1 - 2014 SP - 373 EP - 376 KW - linear and nonlinear waves KW - pair plasma KW - self-focusing KW - quasi-neutral approximation N2 - Self-focusing of circularly-polarized electromagnetic wave has been investigated in the hot magnetized electron-positron -ion plasma. It is observed that difference in the temperature of electron and positron have a significant effect on the behavior of self-focusing, when the density of electron slightly exceeds density of positron. M3 ER -