Emerging Trends in Topological Insulators for Next-Generation Electronics

Abstract

The relentless downscaling of conventional complementary metal-oxide-semiconductor (CMOS) architectures has pushed modern microelectronics to a critical bottleneck defined by severe ohmic dissipation, parasitic thermal leakage, and fundamental quantum limitations. To surpass these processing constraints, solid-state physicists have turned toward topological insulators (TIs), an extraordinary class of quantum materials that defy classic thermodynamic transport paradigms. This article synthesizes the rapid evolutionary trajectory of TIs, focusing on the underlying relativistic mechanics, spin-orbit interactions, and surface state dynamics that characterize their operational potential. By possessing a bulk insulating bandgap alongside robust, gapless metallic surface states protected by time-reversal symmetry, TIs facilitate the completely dissipationless transport of spin-polarized electrons. Despite their vast theoretical advantages, transitioning these materials into practical next-generation electronic and spintronic devices remains constrained by serious material synthesis and interfacial bottlenecks. These challenges include high bulk residual conductivity, defect-induced carrier scattering, and the difficulty of maintaining topological protection at ambient room temperatures. This article outlines the core thematic frameworks analyzed in the subsequent text, which evaluates current literature regarding film deposition methodologies, magnetic doping, and the development of topological heterojunctions. By critically examining these academic contributions, this article establishes a comprehensive roadmap for transforming TIs from complex low-temperature quantum phenomena into scalable, room-temperature industrial technologies. Ultimately, this article emphasizes the necessity of bridging fundamental quantum mechanics with applied materials engineering to pave the path forward for the future of green, ultra-fast, and energy-efficient computational architectures.

How to cite this article:
Singh S K. Emerging Trends in Topological Insulators for Next-Generation Electronics. J Adv Res Appl Phy Appl 2025; 8(2): 31-37.