Terahertz Nonlinear Hall Rectifiers Based on Spin‐Polarized Topological Electronic States in 1T‐CoTe<sub>2</sub> (Adv. Mater. 10/2023)

Hu, Zhen; Zhang, Libo; Chakraborty, Atasi; D’Olimpio, Gianluca; Fujii, Jun; Ge, Anping; Zhou, Yuanchen; Liu, Changlong; Agarwal, Amit; Vobornik, I.; Farı́as, Daniel; Kuo, C. N.; Lue, Chin Shan; Politano, Antonio; Wang, Shao‐Wei; Hu, Weida; Chen, Xiaoshuang; Lu, Wei; Wang, Lin

doi:10.1002/adma.202370071

Cited by 8 publications

(9 citation statements)

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“…Interestingly, a current conversion by rectifying the driving alternating current were realized in the absence of a magnetic field (Figure 6f). [ 245 ]…”

Section: Pps Based On Ldmsmentioning

confidence: 99%

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Low‐Dimensional‐Materials‐Based Photodetectors for Next‐Generation Polarized Detection and Imaging

Xin,

Zhong,

Shi

et al. 2023

Advanced Materials

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The vector characteristics of light and the vectorial transformations during its transmission lay a foundation for polarized photodetection of objects, which broadens the applications of related detectors in complex environments. With the breakthrough of low‐dimensional materials (LDMs) in optics and electronics over the past few years, the combination of these novel LDMs and traditional working modes is expected to bring new development opportunities in this field. Here, we mainly focus on the state‐of‐the‐art progress of LDMs as polarization‐sensitive components in polarized photodetection and even the imaging, with emphasis on the relationship between traditional working principle of polarized photodetectors (PPs) and photoresponse mechanisms of LDMs. Particularly, from the view of constitutive equation, the existing works are reorganized, reclassified and reviewed. The perspectives on the opportunities and challenges are also discussed. We hope that this work can provide a more general overview in the use of LDMs in this field, sorting out the way of related devices for “more than Moore” or even the “beyond Moore” research.This article is protected by copyright. All rights reserved

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“…Interestingly, a current conversion by rectifying the driving alternating current were realized in the absence of a magnetic field (Figure 6f). [ 245 ]…”

Section: Pps Based On Ldmsmentioning

confidence: 99%

mentioning

confidence: 99%

Low‐Dimensional‐Materials‐Based Photodetectors for Next‐Generation Polarized Detection and Imaging

Xin,

Zhong,

Shi

et al. 2023

Advanced Materials

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“…The up‐ and down‐spin bands were crossed with spin‐momentum locking, comparable to the topological surface states. [ 100 ] It is worthy to note that the realization of NLHE in CoTe 2 expands the boundary of topological quantum materials and stimulate more efforts in exploring novel properties in cobalt telluride.…”

Section: Propertiesmentioning

confidence: 99%

Emerging 2D Cobalt Telluride (Co_xTe_y): from Theory to Applications

Liu,

Gong,

Yin

et al. 2023

Adv Funct Materials

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Cobalt telluride, with tunable magnetism and ferromagnetism that hinged upon the stoichiometric ratio, has emerged as a new member of 2D materials in the last decade. Metallic doping by sodium (Na) and platinum (Pt) atoms below critical concentrations is found to enhance the magnetism of cobalt telluride. After thinning cobalt telluride down to few‐layer, the saturation magnetism is improved by two order of magnitudes because of the oxidation state of cobalt (Co) and reduced coordination number of the surface atoms. In 2D limit, cobalt di‐telluride possesses Dirac band structure with many nodal lines that correlate with quantum criticality and other fantastic physics. In this mini‐review, the crystal and band structures of cobalt telluride categorized by stoichiometric ratio are overviewed after briefing the introduction. Both top‐down and bottom‐up methods are then discussed to offer optimum solutions for each specified application scenario. Afterward, emerging magnetic and electronic properties and credit enhancements are launched accompanied with their key advances. Beyond these, the faced challenges and possible directions of future research are also provided, attempting to boost both fundamental physics and device applications based on 2D cobalt telluride.

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“…Topological materials, a novel class of quantum matter, are distinguished by the robustness of their surface states against non-magnetic perturbations, a consequence of their non-trivial topology. [1] These materials, particularly topological insulators, [2][3][4] semimetals, [5][6][7][8][9] and superconductors, [10][11][12][13] have generated a significant research interest due to their potential implications for quantum computing [14] and spintronics. [15] The exotic phenomena exhibited by these materials, such as the quantum anomalous Hall effect [16][17][18] and Majorana fermions, [19][20][21][22] defy traditional paradigms, requiring innovative theoretical and experimental approaches for their comprehensive understanding.…”

Section: Introductionmentioning

confidence: 99%

Insights into the Stability and Surface Termination of Topological Semimetal NbAs₂

D'Olimpio,

Zhang,

Rosmus

et al. 2024

Adv Materials Inter

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NbAs2, a topological semimetal, has stirred considerable interest for its potential usage in magnetic and fault‐tolerant quantum computation superconductor devices, owing to its superconductivity, enormous magnetoresistance, and anisotropic magneto‐transport attributes. Yet, its environmental stability, a crucial factor for practical applications, remains largely unexplored. Herein, a comprehensive examination of the stability and electronic properties of the (001) surface of NbAs2 utilizing density functional theory (DFT) and surface science experiments is conducted. The theoretical deductions reveal that As atoms, organized in a buckled honeycomb configuration, terminate the bare (001) surface, akin to the tensile blue arsenene monolayer along the armchair direction. This study further demonstrates that the oxidation barrier is particularly low (only 0.2 eV), highlighting that the (001) surface is highly prone to oxidation under standard conditions, forming a As2O5+Nb2O5/NbAs2 heterostructure. Additionally, it observes that oxidation adversely affects the electronic characteristics of the topological semimetal NbAs2. The conclusions underscore the need for NbAs2 to be managed under high vacuum conditions or to be encapsulated for any usage in the ambient atmosphere in order to retain its electronic properties for practical purposes.

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Terahertz Nonlinear Hall Rectifiers Based on Spin‐Polarized Topological Electronic States in 1T‐CoTe₂ (Adv. Mater. 10/2023)

Cited by 8 publications

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Low‐Dimensional‐Materials‐Based Photodetectors for Next‐Generation Polarized Detection and Imaging

Low‐Dimensional‐Materials‐Based Photodetectors for Next‐Generation Polarized Detection and Imaging

Emerging 2D Cobalt Telluride (Co_xTe_y): from Theory to Applications

Insights into the Stability and Surface Termination of Topological Semimetal NbAs₂

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Terahertz Nonlinear Hall Rectifiers Based on Spin‐Polarized Topological Electronic States in 1T‐CoTe2 (Adv. Mater. 10/2023)

Cited by 8 publications

References 0 publications

Low‐Dimensional‐Materials‐Based Photodetectors for Next‐Generation Polarized Detection and Imaging

Low‐Dimensional‐Materials‐Based Photodetectors for Next‐Generation Polarized Detection and Imaging

Emerging 2D Cobalt Telluride (CoxTey): from Theory to Applications

Insights into the Stability and Surface Termination of Topological Semimetal NbAs2

Contact Info

Product

Resources

About

Terahertz Nonlinear Hall Rectifiers Based on Spin‐Polarized Topological Electronic States in 1T‐CoTe₂ (Adv. Mater. 10/2023)

Emerging 2D Cobalt Telluride (Co_xTe_y): from Theory to Applications

Insights into the Stability and Surface Termination of Topological Semimetal NbAs₂