In this paper we have discussed the consequence of superthermal electrons and negative ion concentration on the arbitrary amplitude ion-acoustic double layers (IA-DLs) for plasma comprising the hot negative and positive ions with kappa distribution electrons. The energy equation is deduced for ion acoustic waves using Pseudo potential technique. We have investigated different parametric regimes for the existence of rarefactive and compressive ion acoustic DLs. The existence of double layers in term of minimum and maximum Mach number has calculated numerically. The effect of spectral index k on the amplitude of DLs and depth of Sagdeev potential has been discussed in detail. From numerical analysis, it is found that the compressive DLs exist at low values of α and rarefactive double layer exist at higher values of α. On the other hand, the effect of ionic temperature ratio (σ ₁ and σ ₂) plays significant role for the formation of double layer. Our analytical work also shows that the system supports coexistence of compressive and rarefactive DLs. It is also observed that the mass ratio affect the basic properties of DLs. We expect that the present results may be used to explain the ion-acoustic double layer in space plasma, where two ionic species and superthermal electrons are observed NO52.35g.

在本文中，我们讨论了对于包含热的负离子和正离子和κ电子的等离子体，任意振幅离子声双层（IA-DLs）上的过热电子和负离子浓度的后果。使用伪电位技术推导离子声波的能量方程。我们已经研究了稀有和压缩离子声学DL的存在的不同参数制度。用最小和最大马赫数计算了双层的存在。详细讨论了光谱指数k对DLs幅度和Sagdeev势深度的影响。从数值分析中发现，压缩DLs以较低的α值存在，稀疏双层以较高的α值存在。另一方面，σ ₁和σ ₂）起着用于双层的形成显著作用。我们的分析工作还表明，该系统支持压缩和稀疏DL的共存。还观察到质量比影响DL的基本性质。我们希望目前的结果可以用来解释空间等离子体中的离子声双层，其中观察到两个离子物种和超热电子NO52.35g。