文献类型：期刊文献

英文题名：Oblique propagation of ion acoustic soliton-cnoidal waves in a magnetized electron-positron-ion plasma with superthermal electrons

作者：Wang, Jian-Yong[1];Cheng, Xue-Ping[1];Tang, Xiao-Yan[1];Yang, Jian-Rong[2];Ren, Bo[3]

机构：[1]Shanghai Jiao Tong Univ, Dept Phys & Astron, Shanghai 200240, Peoples R China;[2]Shangrao Normal Univ, Dept Phys & Elect, Jiangxi 334001, Shangrao, Peoples R China;[3]Shaoxing Univ, Inst Nonlinear Sci, Shaoxing 312000, Peoples R China

年份：2014

卷号：21

期号：3

外文期刊名：PHYSICS OF PLASMAS

收录：SCI-EXPANDED(收录号：WOS:000334180200033)、、EI(收录号：20141317505112)、Scopus(收录号：2-s2.0-84896328789)、WOS

基金：The work was sponsored by National Natural Science Foundation of China (Nos. 11275123, 11175092, 11365017, and 11305106) and Natural Science Foundation of Zhejiang Province of China (No. LQ13A050001).

语种：英文

外文关键词：Acoustics - Electromagnetic wave propagation in plasma - Electrons - Ion acoustic waves - Ions - Korteweg-de Vries equation - Magnetic fields - Positrons - Solitons

外文摘要：The oblique propagation of ion-acoustic soliton-cnoidal waves in a magnetized electron-positron-ion plasma with superthermal electrons is studied. Linear dispersion relations of the fast and slow ion-acoustic modes are discussed under the weak and strong magnetic field situations. By means of the reductive perturbation approach, Korteweg-de Vries equations governing ion-acoustic waves of fast and slow modes are derived, respectively. Explicit interacting soliton-cnoidal wave solutions are obtained by the generalized truncated Painleve expansion. It is found that every peak of a cnoidal wave elastically interacts with a usual soliton except for some phase shifts. The influence of the electron superthermality, positron concentration, and magnetic field obliqueness on the soliton-cnoidal wave are investigated in detail. (C) 2014 AIP Publishing LLC.