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The one-dimensional metallic states that appear at the zigzag edges of semiconducting two-dimensional transition metal di-chalcogenides (TMDCs) result from the intrinsic electric polarization in these materials, which for D$_{3h}$ symmetry…

Materials Science · Physics 2020-10-28 Sridevi Krishnamurthi , Mojtaba Farmanbar , Geert Brocks

Transition-metal dichalcogenides (TMDCs) are important class of two-dimensional (2D) layered materials for electronic and optoelectronic applications, due to their ultimate body thickness, sizable and tunable bandgap, and decent theoretical…

Materials Science · Physics 2017-01-10 Zhihao Yu , Zhun-Yong Ong , Songlin Li , Jian-Bin Xu , Gang Zhang , Yong-Wei Zhang , Yi Shi , Xinran Wang

The metastable 1$T'$ phase of layered transition metal dichalcogenides has recently attracted considerable interest due to electronic properties, possible topological electronic phases and catalytic activity. We report a comprehensive…

Materials Science · Physics 2018-04-13 Michele Pizzochero , Oleg V. Yazyev

We present a comprehensive first-principles study of the electronic structure of 51 semiconducting monolayer transition metal dichalcogenides and -oxides in the 2H and 1T hexagonal phases. The quasiparticle (QP) band structures with…

Materials Science · Physics 2015-06-10 Filip Anselm Rasmussen , Kristian Sommer Thygesen

While exciton relaxation in transition metal dichalcogenides (TMDs) has been intensively studied, spatial exciton propagation has received only little attention - in spite of being a key process for optoelectronics and having already shown…

Mesoscale and Nanoscale Physics · Physics 2020-01-23 Roberto Rosati , Raül Perea-Causín , Samuel Brem , Ermin Malic

Doping in transition metal dichalcogenide (TMD) monolayers provides a powerful method to precisely tailor their electronic, optical, and catalytic properties for advanced technological applications, including optoelectronics, catalysis, and…

Rich valleytronics and diverse defect-induced or interlayer pre-bandgap excitonics have been extensively studied in transition metal dichalcogenides (TMDCs), a system with fascinating optical physics. However, more intense high-energy…

Materials Science · Physics 2021-04-02 Jinhua Hong , Masanori Koshino , Ryosuke Senga , Thomas Pichler , Hua Xu , Kazu Suenaga

We present the first review of the current state of the literature on electronic properties and phase transitions in TlX and TlMX2 (M = Ga, In; X = Se, S, Te) compounds. These chalcogenides belong to a family of the low-dimensional…

Other Condensed Matter · Physics 2008-07-21 A. M. Panich

Two-dimensional (2D) layered transition metal dichalcogenides (TMDCs) are promising memristive materials for neuromorphic computing systems as they could solve the problem of the excessively high energy consumption of conventional von…

Applied Physics · Physics 2025-05-21 Benjamin Spetzler , Dilara Abdel , Frank Schwierz , Martin Ziegler , Patricio Farrell

Semiconducting oxides possess a variety of intriguing electronic, optical, and magnetic properties, and native defects play a crucial role in these systems. In this study, we study the influence of native defects on these properties of…

Materials Science · Physics 2023-06-12 Poonam Sharma , Vikash Mishra , Alok Shukla

We systematically investigate the electronic structure and magnetic properties of two dimensional (2D) MPX$_3$ (M= V, Cr, Mn, Fe, Co, Ni, Cu, Zn, and X = S, Se, Te) transition metal chacogenophosphates to examine their potential role as…

Mesoscale and Nanoscale Physics · Physics 2017-10-02 Bheema Lingam Chittari , Youngju Park , Dongkyu Lee , Moonsup Han , Allan H. MacDonald , Euyheon Hwang , Jeil Jung

Using ab initio tight-binding approaches, we investigate Floquet band engineering of the 1T' phase of transition metal dichalcogenides (MX2, M = W, Mo and X = Te, Se, S) monolayers under the irradiation with circularly polarized light. Our…

Materials Science · Physics 2021-09-13 Xiangru Kong , Wei Luo , Linyang Li , Mina Yoon , Tom Berlijn , Liangbo Liang

The transition metal carbides (namely MXenes) and their functionalized derivatives exhibit various physical and chemical characteristics and offer many potential applications in electronic devices and sensors. Using density functional…

Mesoscale and Nanoscale Physics · Physics 2020-03-06 Jiaqi Zhou , Mohammad Khazaei , Ahmad Ranjbar , Vei Wang , Thomas D. Kühne , Kaoru Ohno , Yoshiyuki Kawazoe , Yunye Liang

Layered transition-metal dichalcogenides (TMDs) host competing electronic states that can be tuned by external perturbations, providing a platform to explore the interplay between disorder, electronic structure, and quantum transport. Here…

We present here the minimal tight--binding model for a single layer of transition metal dichalcogenides (TMDCs) MX$_{2}$ (M--metal, X--chalcogen) which illuminates the physics and captures band nesting, massive Dirac Fermions and Valley…

Materials Science · Physics 2023-05-05 M. Bieniek , M. Korkusiński , L. Szulakowska , P. Potasz , I. Ozfidan , P. Hawrylak

Layered transition-metal dichalcogenides have emerged as exciting material systems with atomically thin geometries and unique electronic properties. Pressure is a powerful tool for continuously tuning their crystal and electronic structures…

Common substitutional isovalent semiconductor alloys usually form disordered metastable phases with positive excess formation enthalpies ({\Delta}H). In contrast, monolayer alloys of transition metal dichalcogenides (TMDs) MX2 (M = Mo, W; X…

Materials Science · Physics 2017-10-17 Ji-Hui Yang , Boris I. Yakobson

Intrinsic electron- and hole-phonon interactions are investigated in monolayer transition metal dichalcogenides MX$_2$ (M=Mo,W; X=S,Se) based on a density functional theory formalism. Due to their structural similarities, all four materials…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 Zhenghe Jin , Xiaodong Li , Jeffrey Thomas Mullen , Ki Wook Kim

Multi-exciton states such as biexcitons, albeit theoretically predicted, have remained challenging to identify in atomically thin transition metal dichalcogenides so far. Here, we use excitation-power, electric-field and magnetic-field…

Successful doping of single-layer transition metal dichalcogenides (TMDs) remains a formidable barrier to their incorporation into a range of technologies. We use density functional theory to study doping of molybdenum and tungsten…

Materials Science · Physics 2017-11-22 Nicolas Onofrio , David Guzman , Alejandro Strachan
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