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Emergent phenomena youtube9/11/2023 Nevertheless, the magnetic proximity effect is typically short‐ranged (several nanometers) owing to the finite extension of the electronic wavefunctions across the interface (exchange coupling of spins). ] and quasiparticle‐generation (Majorana and skyrmions). ] Superconductivity‐mediated spin‐control (spin supercurrent and magnons) [ Spin‐control (ordering and torque)‐enhancing magnetism and T C, [ Interfacial phenomena through magnetic proximity. Hence, magnetic proximity effect has been extensively investigated for decades in order to control functionalities of proximitized materials. These efforts are crucial for forming the “bits” in next generation spintronics, valleytronics, magnonics, and topological quantum computing. ] and iv) generation of quasiparticles such as Majorana and skyrmions [ ] iii) superconductivity‐mediated control of spin (spin supercurrent and magnons), [ ] and (noncollinear) spin structures in real space, [ The synergistic interfacial engineering of material functionalities through spin statistics and dynamics emerged by magnetic proximity or proximitized magnetism includes i) control of spin and subsequent enhancement of magnetism, [ For example, the interfacial charge transfer in atomically thin 2D materials strongly influences the magnetic proximity. ] Moreover, since the discovery of huge library of 2D materials, magnetic proximity effect has been extensively investigated to attain intrinsic spin‐dependent properties from its adjacent material like magnetic or topological materials. The interplay of magnetic proximity with spin–orbit coupling (SOC) has received interest in 2000s because of its significant potential for spintronics, such as efficient conversion between spin and charge, along with the generation of spin‐polarized currents. ] as a ubiquitous approach to transform a wide class of materials. This further elucidates a much broader picture of magnetic proximity effects to control the material functionalities such as magnetic transition temperature ( T C and antiferromagnetic T N), coercivity, magnetic anisotropy, and exchange bias effect, [ ] Over the subsequent several decades, such a conventional magnetic proximity effect has been widely extended to antiferromagnetic insulator in addition to paramagnetic metals. In 1973, Zuckermann theoretically predicted the magnetic proximity effect, in which an itinerant ferromagnetic (FM) material could induce ferromagnetism into proximitized paramagnetic metal. ] Recent interest in superconducting proximity effect was sparked by it being means to superconducting spintronics and Majorana fermions. The first demonstration of such an phenomenon was the discovery of superconducting (SC) proximity effect in 1960s, in which the superconducting Cooper pair penetrated into an adjacent metallic layer over a long distance (≈1 µm). As a result, the proximity effect in the host material enables the manipulation of superconducting, spintronic, excitonic, and topological phenomena. The desired functionalities that are absent from the material can often be generated by the transfer of ordering from the adjacent system. When guest material which possesses long range order is attached to an adjacent host material, proximity effect often occurs in the host. The current limitations and future challenges associated with magnetic proximity‐related physics phenomena in 2D heterostructures are further discussed. The essential factors of magnetism and interfacial engineering induced by magnetic layers are studied. Here, this paper focuses on magnetic proximity, i.e., proximitized magnetism and reviews the engineering of magnetism‐related functionalities in 2D vdW layered heterostructures for next‐generation electronic and spintronic devices. Meanwhile, the extensive library of atomically thin, 2D van der Waals (vdW) layered materials, with unique characteristics such as strong SOC, magnetic anisotropy, and ultraclean surfaces, offers many opportunities to tailor versatile and more effective functionalities through proximity effects. Nevertheless, several fundamental challenges remain for effective applications: unavoidable disorder and lattice mismatch limits in the growth process, short characteristic length of proximity, magnetic fluctuation in ultrathin films, and relatively weak spin–orbit coupling (SOC). These exotic physics play important roles for future spintronic applications. This facilitates various physical phenomena, such as spin order, charge transfer, spin torque, spin density wave, spin current, skyrmions, and Majorana fermions. Proximity effect, which is the coupling between distinct order parameters across interfaces of heterostructures, has attracted immense interest owing to the customizable multifunctionalities of diverse 3D materials.
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