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View article: Direct thermal resistance measurment of a single ripplocation in graphite
Direct thermal resistance measurment of a single ripplocation in graphite Open
Lattice defects in crystalline materials play a critical role in tuning thermal transport, with their properties being highly sensitive to atomic structure. However, characterizing such structure-property relationships is hampered by the c…
View article: Fully transparent flexible 2D molybdenum disulfide transistors
Fully transparent flexible 2D molybdenum disulfide transistors Open
Transparent flexible field-effect transistors (FETs) are increasingly desired for cutting-edge electronics. However, the performance of flexible two-dimensional (2D) FETs still lag behind traditional rigid 2D devices, which is largely asso…
View article: Critical angles and one-dimensional moiré physics in twisted rectangular lattices
Critical angles and one-dimensional moiré physics in twisted rectangular lattices Open
Engineering moiré superlattices in van der Waals heterostructures provides fundamental control over emergent electronic, structural, and optical properties allowing to affect topological and correlated phenomena. This control is achieved t…
View article: Site-polarized Mott phases competing with a correlated metal in twisted WSe$_2$
Site-polarized Mott phases competing with a correlated metal in twisted WSe$_2$ Open
Twisted WSe$_2$ hosts superconductivity, metal-insulator phase transitions, and field-controllable Fermi-liquid to non-Fermi-liquid transport properties. In this work, we use dynamical mean-field theory to provide a coherent understanding …
View article: Valley charge-transfer insulator in twisted double bilayer WSe2
Valley charge-transfer insulator in twisted double bilayer WSe2 Open
In flat-band systems, emergent physics can be substantially modified by the presence of another nearby electronic band. For example, a Mott˘Hubbard insulator can turn into a charge transfer insulator if other electronic states enter betwee…
View article: 2D Covalent Moiré Superlattice from Fluorinating Twisted Bilayer Graphene
2D Covalent Moiré Superlattice from Fluorinating Twisted Bilayer Graphene Open
Moiré materials exhibit diverse quantum properties such as superconductivity and correlated topological phases, making them ideal for studying strongly correlated systems. While moiré materials are typically formed by stacking 2D materials…
View article: High rectification and gate-tunable photoresponse in 1D-2D lateral van der waals heterojunctions
High rectification and gate-tunable photoresponse in 1D-2D lateral van der waals heterojunctions Open
The self-passivating surfaces and reduced tunneling leakage current enable the creation of ideal Schottky contacts in van der Waals (vdW) semiconductor heterojunctions. However, simultaneously achieving high rectification ratios, low rever…
View article: Theory of intervalley-coherent AFM order and topological superconductivity in tWSe$_2$
Theory of intervalley-coherent AFM order and topological superconductivity in tWSe$_2$ Open
The recent observation of superconductivity in the vicinity of Fermi surface reconstructed insulating or metallic states has established twisted bilayers of WSe\textsubscript{2} as an exciting platform to study the interplay of strong elec…
View article: Intralayer/Interlayer Codoping Stabilizes Polarity Modulation in 2D Semiconductors for Scalable Electronics (Adv. Sci. 48/2024)
Intralayer/Interlayer Codoping Stabilizes Polarity Modulation in 2D Semiconductors for Scalable Electronics (Adv. Sci. 48/2024) Open
p‐Type Doping In article number 2408634, Qian Zhang, Hongyun Meng, Qijie Liang, and co‐workers demonstrate the conversion of n‐type or ambipolar 2D semiconductors to p‐type semiconductors through intralayer/interlayer codoping. The codopin…
View article: 2D Theoretically Twistable Material Database
2D Theoretically Twistable Material Database Open
The study of twisted two-dimensional (2D) materials, where twisting layers create moiré superlattices, has opened new opportunities for investigating topological phases and strongly correlated physics. While systems such as twisted bilayer…
View article: Intralayer/Interlayer Codoping Stabilizes Polarity Modulation in 2D Semiconductors for Scalable Electronics
Intralayer/Interlayer Codoping Stabilizes Polarity Modulation in 2D Semiconductors for Scalable Electronics Open
2D semiconductors show promise as a competitive candidate for developing future integrated circuits due to their immunity to short‐channel effects and high carrier mobility at atomic layer thicknesses. The inherent defects and Fermi level …
View article: Two dimensional covalent moire superlattice from fluorinating twisted bilayer graphene
Two dimensional covalent moire superlattice from fluorinating twisted bilayer graphene Open
Moire materials exhibit diverse quantum properties such as superconductivity and correlated topo logical phases, making them ideal for studying strongly correlated systems. While moire materials are typically formed by stacking two-dimensi…
View article: In Situ Growth of MoS<sub>2</sub> Onto Co‐Based MOF Derivatives Toward High‐Efficiency Quantum Dot‐Sensitized Solar Cells
In Situ Growth of MoS<sub>2</sub> Onto Co‐Based MOF Derivatives Toward High‐Efficiency Quantum Dot‐Sensitized Solar Cells Open
Quantum dot sensitized solar cells (QDSCs) represent a promising third‐generation photovoltaic technology, boasting a high theoretical efficiency of 44% and cost efficiency. However, their practical efficiency is constrained by reduced pho…
View article: Engineering 2D square lattice Hubbard models in 90$^\circ$ twisted Ge/SnX (X=S, Se) moiré supperlattices
Engineering 2D square lattice Hubbard models in 90$^\circ$ twisted Ge/SnX (X=S, Se) moiré supperlattices Open
Due to the large-period superlattices emerging in moire two-dimensional (2D) materials, electronic states in such systems exhibit low energy flat bands that can be used to simulate strongly correlated physics in a highly tunable setup. Whi…
View article: Linear resistivity at van Hove singularities in twisted bilayer WSe <sub>2</sub>
Linear resistivity at van Hove singularities in twisted bilayer WSe <sub>2</sub> Open
Different mechanisms driving a linear temperature dependence of the resistivity ρ ∼ T at van Hove singularities (VHSs) or metal-insulator transitions when doping a Mott insulator are being debated intensively with competing theoretical pro…
View article: Epitaxy of wafer-scale single-crystal MoS2 monolayer via buffer layer control
Epitaxy of wafer-scale single-crystal MoS2 monolayer via buffer layer control Open
Monolayer molybdenum disulfide (MoS 2 ), an emergent two-dimensional (2D) semiconductor, holds great promise for transcending the fundamental limits of silicon electronics and continue the downscaling of field-effect transistors. To realiz…
View article: Room-temperature correlated states in twisted bilayer MoS$_2$
Room-temperature correlated states in twisted bilayer MoS$_2$ Open
Moiré superlattices have emerged as an exciting condensed-matter quantum simulator for exploring the exotic physics of strong electronic correlations. Notable progress has been witnessed, but such correlated states are achievable usually a…
View article: WITHDRAWN: Mapping the Mottness under Magnetic Field
WITHDRAWN: Mapping the Mottness under Magnetic Field Open
Charge and spin are two intrinsic degrees of freedom of an electron. In a Mott insulator (MI), they are separated in that the charge degree is frozen due to strong Coulomb interaction U while the spin degree can still fluctuate and is gove…
View article: Ultrafast Spin Dynamics and Photoinduced Insulator-to-Metal Transition in α-RuCl<sub>3</sub>
Ultrafast Spin Dynamics and Photoinduced Insulator-to-Metal Transition in α-RuCl<sub>3</sub> Open
Laser-induced ultrafast demagnetization is a phenomenon of utmost interest and attracts significant attention because it enables potential applications in ultrafast optoelectronics and spintronics. As a spin-orbit coupling assisted magneti…
View article: Link between interlayer hybridization and ultrafast charge transfer in WS<sub>2</sub>-graphene heterostructures
Link between interlayer hybridization and ultrafast charge transfer in WS<sub>2</sub>-graphene heterostructures Open
Ultrafast charge separation after photoexcitation is a common phenomenon in various van-der-Waals (vdW) heterostructures with great relevance for future applications in light harvesting and detection. Theoretical understanding of this phen…
View article: Link between interlayer hybridization and ultrafast charge transfer in WS$_2$-graphene heterostructures
Link between interlayer hybridization and ultrafast charge transfer in WS$_2$-graphene heterostructures Open
Ultrafast charge separation after photoexcitation is a common phenomenon in various van-der-Waals (vdW) heterostructures with great relevance for future applications in light harvesting and detection. Theoretical understanding of this phen…
View article: Coupled Ferroelectricity and Correlated States in a Twisted Quadrilayer MoS<sub>2</sub> Moiré Superlattice
Coupled Ferroelectricity and Correlated States in a Twisted Quadrilayer MoS<sub>2</sub> Moiré Superlattice Open
Moiré superlattices have emerged as a highly controllable quantum platform for exploration of various fascinating phenomena, such as Mott insulator states, ferroelectric order, unconventional superconductivity and orbital ferromagnetism. A…
View article: Ultrafast Spin Dynamics and Photoinduced Insulator-to-Metal Transition in $α$-$RuCl_3$
Ultrafast Spin Dynamics and Photoinduced Insulator-to-Metal Transition in $α$-$RuCl_3$ Open
Laser-induced ultrafast demagnetization is a phenomenon of utmost interest and attracts significant attention because it enables potential applications in ultrafast optoelectronics and spintronics. As a spin-orbit coupling assisted magneti…
View article: Moiré Engineering of Nonsymmorphic Symmetries and Hourglass Superconductors
Moiré Engineering of Nonsymmorphic Symmetries and Hourglass Superconductors Open
Moiré heterostructures hold the promise to provide platforms to tailor strongly correlated and topological states of matter. Here, we theoretically propose the emergence of an effective, rectangular moiré lattice in twisted bilayers of SnS…
View article: Layer-by-layer epitaxy of multi-layer MoS2 wafers
Layer-by-layer epitaxy of multi-layer MoS2 wafers Open
The 2D semiconductor of MoS2 has great potential for advanced electronics technologies beyond silicon. So far, high-quality monolayer MoS2 wafers have been available and various demonstrations from individual transistors to integrated circ…
View article: Layer-by-Layer Epitaxy of Multilayer MoS2 Wafers
Layer-by-Layer Epitaxy of Multilayer MoS2 Wafers Open
Two-dimensional (2D) semiconductor of MoS2 has great potential for advanced electronics technologies beyond silicon1-9. So far, high-quality monolayer MoS2 wafers10-12 are already available and various demonstrations from individual transi…
View article: Moiré engineering of spin–orbit coupling in twisted platinum diselenide
Moiré engineering of spin–orbit coupling in twisted platinum diselenide Open
We study the electronic structure and correlated phases of twisted bilayers of platinum diselenide using large-scale ab initio simulations combined with the functional renormalization group. PtSe 2 is a group-X transition metal dichalcogen…