Journal ArticleDOI
Tetrahedral Transition Metal Chalcogenides as Functional Inorganic Materials
Xiuquan Zhou,Efrain E. Rodriguez +1 more
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TLDR
The tetrahedral transition metal chalcogenides (TTMCs) as mentioned in this paper have a common layered structural motif that could carry novel functionalities on account of the d-orbital filling.Abstract:
We provide a perspective on a series of materials that we have termed tetrahedral transition metal chalcogenides (TTMCs), which have a common layered structural motif that could carry novel functionalities on account of the d-orbital filling. While strong covalent bonding predominates within the TTMC layers, the layers themselves can be held together by van der Waals interactions, Coulombic forces, or even hydrogen bonding. Although similar to transition metal dichalcogenides (TMDs) in some respects, TTMCs have been less explored in their synthesis and materials properties. Unlike TMDs where the transition metal is typically tetravalent and in a 6-coordinate environment, TTMCs contain the transition metal in a tetrahedral environment and in a low valent state of I or II. Structurally, TTMCs crystallize in tetragonal or orthorhombic structures on account of the square lattice formed by the transition metal centers. We present their electronic structure and resulting properties, including superconductivity,...read more
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Exploring the A2BX3 Family for New Functional Materials Using Crystallographic Database Mining and First-Principles Calculations
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Enhanced Superconductivity and Electron Correlations in Intercalated ZrTe$_3$
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TL;DR: In this article , the authors observed an increase in electronic correlations of the conducting states as CDW is suppressed in ZrTe 3 with 5% Cu and Ni intercalation in the vdW gap.
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Superconductivity and strong anharmonicity in novel Nb-S phases.
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References
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Journal ArticleDOI
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides
TL;DR: The effective ionic radii of Shannon & Prewitt [Acta Cryst. (1969), B25, 925-945] are revised to include more unusual oxidation states and coordinations as mentioned in this paper.
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Electronics and optoelectronics of two-dimensional transition metal dichalcogenides.
TL;DR: This work reviews the historical development of Transition metal dichalcogenides, methods for preparing atomically thin layers, their electronic and optical properties, and prospects for future advances in electronics and optoelectronics.
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The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets
TL;DR: This Review describes how the tunable electronic structure of TMDs makes them attractive for a variety of applications, as well as electrically active materials in opto-electronics.
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Emerging Photoluminescence in Monolayer MoS2
Andrea Splendiani,Liang Sun,Yuanbo Zhang,Tianshu Li,Jonghwan Kim,Chi-Yung Chim,Giulia Galli,Feng Wang,Feng Wang +8 more
TL;DR: This observation shows that quantum confinement in layered d-electron materials like MoS(2), a prototypical metal dichalcogenide, provides new opportunities for engineering the electronic structure of matter at the nanoscale.
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Iron-Based Layered Superconductor La[O1-xFx]FeAs (x = 0.05−0.12) with Tc = 26 K
TL;DR: It is reported that a layered iron-based compound LaOFeAs undergoes superconducting transition under doping with F- ions at the O2- site and exhibits a trapezoid shape dependence on the F- content.