Challenges and Prospects of Molecular Spintronics

Abstract

Molecular spintronics, as an emerging field that makes full use of the advantage of ultralong room-temperature spin lifetime and abundant electrical-optical-magnetic properties of molecular semiconductors, has gained wide attention for its great potential for further commercial applications. Despite the significant progress that has been made, there remain several huge challenges that limit the future development of this field. This Perspective provides discussions on the spin transport mechanisms and performances of molecular semiconductors, spinterface effect, and related spin injection in spintronic devices, and current spin-charge interactive functionalities, along with the summarization of the main obstacles of these aspects. Furthermore, we particularly propose targeted solutions, aiming to enhance the spin injection and transport efficiency by molecular design and interface engineering and explore diverse spinrelated functionalities. Through this Perspective, we hope it will help the spintronic community identify the research trends and accelerate the development of molecular spintronics.

Emerging Nonlinear Photocurrents in Lead Halide Perovskites for Spintronics

“…As was shown in [46], the interface could play an important role in the nature of the Rashba effect. At the same time, "spin interfaces" such as LHPs with ferromagnetic materials require more attention for advances in molecular spintronics [90]. The Rashba and Dresselhaus SOC strengths can be also further studied using nonlinear photocurrent measurements in LHPs with varying sizes and types of organic parts, similar to recent work [91] in which a change in crystal structure with lead vacancies was studied by the CPGE photocurrent, emphasizing the role of defects.…”

Introduction and Advancements in Room-Temperature Ferromagnetic Metal Oxide Semiconductors for Enhanced Photocatalytic Performance

“…Research focuses on precise control of dopant concentration, distribution, and coupling to optimize magnetic behavior [149,150]. Manipulating interfaces between different materials or heterostructures can influence spin transport and magnetic properties, aiming to engineer interfaces with controlled spin polarization and reduced spin scattering, thus enhancing spin coherence and manipulation efficiency [151,152]. Advancements in spintronics devices and quantum technologies explore innovative approaches for spin manipulation and information processing, concentrating on developing efficient spintronic devices, spin-based logic gates, and quantum bits (qubits) with long coherence times, paving the way for practical applications in information storage and processing [153,154].…”