Lightning the Spin: Harnessing the Potential of 2D Magnets in Opto‐Spintronics

Liu, Sheng; Malik, Iftikhar Ahmed; Zhang, Vanessa Li; Yu, Ting

doi:10.1002/adma.202306920

Cited by 4 publications

(1 citation statement)

References 139 publications

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“…Magnetic-mediated PL. Recently, 2D magnetic semiconductors such as CrSBr and NiPS3 have drawn great research attention, because they add light-spin interaction to optoelectronics and open up chances for optospintronics [323][324][325][326]. Figure 24(s) shows the lattice and magnetic structures of CrSBr and its magnetic field dependent PL spectra.…”

Section: Raman and Photoluminescence Spectroscopies Of 2d Materialsmentioning

confidence: 99%

Two-dimensional materials for future information technology: status and prospects

Qiu,

Yu,

Zhao

et al. 2024

Sci. China Inf. Sci.

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Over the past 70 years, the semiconductor industry has undergone transformative changes, largely driven by the miniaturization of devices and the integration of innovative structures and materials. Two-dimensional (2D) materials like transition metal dichalcogenides (TMDs) and graphene are pivotal in overcoming the limitations of silicon-based technologies, offering innovative approaches in transistor design and functionality, enabling atomic-thin channel transistors and monolithic 3D integration. We review the important progress in the application of 2D materials in future information technology, focusing in particular on microelectronics and optoelectronics. We comprehensively summarize the key advancements across material production, characterization metrology, electronic devices, optoelectronic devices, and heterogeneous integration on silicon. A strategic roadmap and key challenges for the transition of 2D materials from basic research to industrial development are outlined. To facilitate such a transition, key technologies and tools dedicated to 2D materials must be developed to meet industrial standards, and the employment of AI in material growth, characterizations, and circuit design will be essential. It is time for academia to actively engage with industry to drive the next 10 years of 2D material research.

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Section: Raman and Photoluminescence Spectroscopies Of 2d Materialsmentioning

confidence: 99%

Two-dimensional materials for future information technology: status and prospects

Qiu,

Yu,

Zhao

et al. 2024

Sci. China Inf. Sci.

Self Cite

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Tensile Control of Vibrational Strong Light‐Matter Coupling with Flexible Polyester Films

Akinoglu,

Quan,

Rokhsat

et al. 2024

Adv Funct Materials

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Polaritons are generated by strong interaction between photons and matter, with the hybridization fundamentally changing the energy landscape of the system. Future exploitation of polaritons will benefit from implementing low‐cost, flexible, and easily tuneable configurations, as electronics have before. Here, coherent coupling of the carbonyl stretch vibrations of polyester (poly(ethylene terephthalate), PET) films to the optical modes of a Fabry–Perot (FP) cavity is presented, in which the FP cavity is directly formed on flexible, free‐standing, and commercially available PET films. For 2‐µm thick PET films, the carbonyl stretch vibration of the PET overlaps with the half‐wavelength FP cavity mode, leading to the coupling of the two modes, a Rabi splitting above 160 cm−1, and associated anticrossing in angular dispersion measurements. The study demonstrates dynamic control of light‐matter interaction strength by modulating film thickness under tension, finding that a 25% tensile stretch can tune the light‐matter interaction from 20:80 mixing to near‐perfect 50:50 hybridization at normal incidence. These findings are discussed in the context of future foldable/twistable/wearable polaritonic devices.

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Strained van der Waals Metallic Magnet for Photomagnetic Modulation and Spin Photodiode Application

Hu,

Liu,

Quan

et al. 2024

Adv Funct Materials

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All‐optical magnetization reversal provides a low‐power approach for investigating spin state manipulation in 2D magnets. However, the ambient observation of photomagnetic coupling presents significant challenges due to the low Curie temperatures exhibited by most 2D magnets. Herein, a mixed‐dimensional heterostructure comprising a surface‐oxidized Fe3GeTe2 nanosheet with enhanced magnetic properties and individual semiconducting ZnO nanorod is proposed to explore proximity photomagnetic modulation and spin‐enhanced photodetection behaviors. The surface curvature of ZnO nanorod induces pronounced strains for Fe3GeTe2 nanosheet, leading to its anomalous Raman polarization and spin ordering at room temperature. Strain‐activated itinerant spin electrons are immobilized on the O‐2p orbitals of adjacent ZnO, thereby facilitating the optical demagnetization process in Fe3GeTe2 without aid of magnetic field. First‐principles calculations together with in situ characterization experiments further confirm that the primary charge transfer channel involves coupling between Fe3+ and oxygen vacancy defects anchored at heterointerfaces. The rapid establishment of magnetization by illumination in ZnO nanorod contributes to spin‐tunneling‐enhanced photocurrent, device response dynamics, polarization detection and ultraviolet imaging capability. These findings offer valuable insights to optimize the optoelectronic properties of conventional semiconductors and advance complex dimensional spin‐optoelectronic devices.

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Lightning the Spin: Harnessing the Potential of 2D Magnets in Opto‐Spintronics

Cited by 4 publications

References 139 publications

Two-dimensional materials for future information technology: status and prospects

Two-dimensional materials for future information technology: status and prospects

Tensile Control of Vibrational Strong Light‐Matter Coupling with Flexible Polyester Films

Strained van der Waals Metallic Magnet for Photomagnetic Modulation and Spin Photodiode Application

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