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Valley asymmetry of the electron spectrum in transition metal dichalcogenides (TMDs) originates from the spin-orbit coupling. Presence of spin-orbit fields of opposite signs for electrons in K and K' valleys in combination with possibility…

Mesoscale and Nanoscale Physics · Physics 2016-05-11 Z. Yue , Kun Tian , A. Tiwari , M. E. Raikh

We study the conduction band spin splitting that arises in transition metal dichalcogenide (TMD) semiconductor monolayers such as MoS$_2$, MoSe$_2$, WS$_2$ and WSe$_2$ due to the combination of spin-orbit coupling and lack of inversion…

Materials Science · Physics 2014-01-01 K. Kośmider , J. W. González , J. Fernández-Rossier

Two-dimensional transition metal dichalcogenide (TMD) interfaces offer a versatile platform for studying emergent quantum phenomena and enabling novel device functionalities. When distinct TMD monolayers are stacked vertically or laterally…

We investigate proximity-induced superconductivity in monolayers of transition metal dichalcogenides (TMDs) in the presence of an externally generated exchange field. A variety of superconducting order parameters is found to emerge from the…

Superconductivity · Physics 2017-04-11 M. A. Rahimi , A. G. Moghaddam , C. Dykstra , M. Governale , U. Zülicke

Atomically thin materials such as graphene and monolayer transition metal dichalcogenides (TMDs) exhibit remarkable physical properties resulting from their reduced dimensionality and crystal symmetry. The family of semiconducting…

Van der Waals heterobilayers based on 2D transition metal dichalcogenides have been recently shown to support robust and long-lived valley polarization for potential valleytronic applications. However, the role of the band structure and…

Transition metal dichalcogenides (TMDs) are layered semiconducting van der Waal crystals and promising materials for a wide range of electronic and optoelectronic devices. Realizing practical electrical and optoelectronic device…

Mesoscale and Nanoscale Physics · Physics 2019-08-05 Hao Lee , S. Deshmukh , Jing Wen , V. Z. Costa , J. S. Schuder , M. Sanchez , A. S. Ichimura , Eric Pop , Bin Wang , A. K. M. Newaz

Electron valleys in transition-metal dichalcogenide monolayers drive novel physics and allow designing multifunctional architectures for applications. We propose to manipulate the electron valleys in these systems for spin/valley filter and…

Mesoscale and Nanoscale Physics · Physics 2021-11-15 Ao Zhang , Kaike Yang , Yun Zhang , Anlian Pan , Mingxing Chen

Monolayer Transition Metal Dichalcogenides (TMDCs) are promising candidates for quantum technologies, such as quantum dots, because they are truly two-dimensional semiconductors with a direct band gap. In this work, we analyse theoretically…

Mesoscale and Nanoscale Physics · Physics 2018-02-28 Alessandro David , Guido Burkard , Andor Kormányos

In moir\'e graphene systems, electronic interactions lift spin and valley degeneracies, leading to symmetry-broken ground states. In helical trilayer graphene (HTG), we uncover a distinct interaction-driven mechanism in which the roles of…

We propose an effective model for the study of the interplay between correlation and topology by decorating the Kane-Mele model with a set of localized interacting orbitals hybridized to just one sublattice, breaking the inversion symmetry.…

Strongly Correlated Electrons · Physics 2024-02-23 Jan Skolimowski , Wojciech Brzezicki , Carmine Autieri

In monolayer group-VI transition metal dichalcogenides (TMDC), charge carriers have spin and valley degrees of freedom, both associated with magnetic moments. On the other hand, the layer degree of freedom in multilayers is associated with…

Mesoscale and Nanoscale Physics · Physics 2013-07-19 Zhirui Gong , Gui-Bin Liu , Hongyi Yu , Di Xiao , Xiaodong Cui , Xiaodong Xu , Wang Yao

We propose a physical model based on disordered (a hole punched inside a material) monolayer transition metal dichalcogenides (TMDs) to demonstrate a large-gap quantum valley Hall insulator. We find an emergence of bound states lying inside…

Mesoscale and Nanoscale Physics · Physics 2016-05-04 Fanyao Qu , L. Villegas-Lelovsky , G. S. Diniz

Dzyaloshinskii-Moriya interaction (DMI) is vital to form various chiral spin textures, novel behaviors of magnons and permits their potential applications in energy-efficient spintronic devices. Here, we realize a sizable bulk DMI in a…

Semiconductor transition metal dichalcogenides (TMDs) have equivalent dynamics for their two spin/valley species. This arises from their energy-degenerated spin states, connected via time-reversal symmetry. When an out-of-plane magnetic…

The theory of inter-spin-subband electric dipole spin resonance in transition metal dichalcogenide heterobilayers is proposed. Our symmetry analysis demonstrates that, in contrast to monolayers, the reduced symmetry of heterobilayers…

Mesoscale and Nanoscale Physics · Physics 2026-05-21 K. K. Grigoryan , M. M. Glazov

While transition metal dichalcogenide (TMD) based moire materials have been shown to host various correlated electronic phenomena, topological states have not been experimentally observed until now. In this work, using first principles…

Strongly Correlated Electrons · Physics 2021-10-04 Yang Zhang , Trithep Devakul , Liang Fu

We formulate the multi-band kp theory of hyperfine interactions for semiconductor nanostructures in the envelope function approximation. We apply this theoretical description to the fluctuations of the longitudinal and transverse Overhauser…

Mesoscale and Nanoscale Physics · Physics 2019-08-28 Paweł Machnikowski , Krzysztof Gawarecki , Łukasz Cywiński

Two-dimensional (2D) layered transition metal dichalcogenides (TMDs) have been recently proposed as appealing candidate materials for spintronic applications owing to their distinctive atomic crystal structure and exotic physical properties…

Transition metal dichalcogenide superlattices provide an exciting new platform for exploring and understanding a variety of phases of matter. The moir\'e continuum Hamiltonian, of two-dimensional jellium in a modulating potential, provides…

Strongly Correlated Electrons · Physics 2024-02-16 Yubo Yang , Miguel Morales , Shiwei Zhang