Advanced Spintronic and Electronic Nanomaterials

Since single-layer graphene [1] with ultrahigh carrier mobility was obtained experimentally in 2004, two-dimensional (2D) layered electronic materials have become more widespread [2,3,4,5,6,7,8,9]. Two-dimensional non-layered materials [10,11,12,13,14], with their abundant terrestrial resources and low costs, support broader practical applications. Consequently, the repository of 2D materials has become more diverse, facilitating their application in spintronics [15,16,17,18,19], flexible electronics [20,21], information science [22,23], and related fields [24,25].

Over the past two decades, spintronics and electronics [26,27,28,29,30] have developed very rapidly. In 2017, low-temperature long-range ferromagnetic order was experimentally discovered both in Cr₂Ge₂Te₆ [26] and Crl₃ [27] monolayer systems. Two-dimensional ferromagnetism immediately became of tremendous interest to researchers all over the world. As such, studies on 2D materials have expanded and now correlate with investigations of both traditional materials and emerging materials including diluted magnetic semiconductors and wide band gap semiconductors.

This Special Issue brings together ten articles, specifically eight research articles and two review articles, dedicated to advanced spintronic and electronic nanomaterials. The content of the Special Issue includes the following: the modulation of vortex resonance in ferromagnetic permalloy dots [31], the cap** layer effect on tunneling magnetoresistance in tunnel junctions [32], the size-dependent superconducting properties of indium nanowires [33], the co-do** effect of Mn and halogen elements on GeSe monolayers [34], the colossal magnetoresistance in layered diluted magnetic semiconductor Rb(Zn,Li,Mn)₄As₃ [35], charge density wave transitions in 2D 1T-TaS₂ crystals [36], characterizations of Mn₅Ge₃ contacts on Ge/SiGe heterostructures [37] and Ni-doped Cd₃As₂ films on GaAs (111) substrates [38], strain engineering of intrinsic ferromagnetism in 2D van der Waals materials [6], and spintronic applications of carbon-based nanomaterials [39]. Our Special Issue may promote and accelerate ongoing research efforts of advanced spintronic and electronic nanomaterials. It is of vital importance to 2D spintronic devices and will be of interest to general readers of Nanomaterials.