Construction of twisted graphene-silicene heterostructures

Article Chemistry, Physical

Moire enhanced charge density wave state in twisted 1T-TiTe2/1T-TiSe2 heterostructures

Wei-Min Zhao et al.

Summary: The study reveals that moire patterns formed at specific twist angles can trap charge density wave (CDW) states, which persist at room temperature, indicating potential applications in CDW-based technologies.

NATURE MATERIALS (2022)

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Article Physics, Multidisciplinary

Twist engineering of the two-dimensional magnetism in double bilayer chromium triiodide homostructures

Hongchao Xie et al.

Summary: This study demonstrates successful twist engineering of 2D magnetism by fabricating twisted double bilayers of a 2D magnet, chromium triiodide (CrI3). It identifies a new magnetic ground state that differs from natural two-layer and four-layer CrI3 structures, and shows that the emergent magnetism for small and large twist angles resemble different configurations, while an intermediate twist angle introduces net magnetization due to spin frustrations.

NATURE PHYSICS (2022)

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Article Chemistry, Multidisciplinary

Van der Waals Heteroepitaxy of Air-Stable Quasi-Free-Standing Silicene Layers on CVD Epitaxial Graphene/6H-SiC

Zouhour Ben Jabra et al.

Summary: This study investigates the growth of silicon on a chemically vapor deposited epitaxial graphene substrate and shows that the control of almost defect-free graphene is crucial for the growth of silicene. It is found that large silicene sheets can be formed at low coverages, while dendritic islands of silicon appear at higher coverages.

ACS NANO (2022)

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Article Chemistry, Multidisciplinary

Experimental Realization of Atomic Monolayer Si9C15

Zhao-Yan Gao et al.

Summary: This study reports the synthesis of atomic monolayer Si9C15 on Ru (0001) and Rh(111) substrates. By employing scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), scanning transmission electron microscopy (STEM), and density functional theory (DFT) calculations, the researchers reveal that Si9C15 possesses a buckled honeycomb structure as a two-dimensional lattice, with good air stability and a bandgap of approximately 1.9 eV. This finding expands the library of 2D materials and offers a promising platform for future studies in nanoelectronics and nanophotonics.

ADVANCED MATERIALS (2022)

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Article Multidisciplinary Sciences

Imaging two-dimensional generalized Wigner crystals

Hongyuan Li et al.

Summary: The Wigner crystal has been a subject of fascination for condensed matter physicists for nearly 90 years and has recently been observed in moire superlattices. This study successfully demonstrates real-space imaging of 2D Wigner crystals in WSe2/WS2 heterostructures using a specially designed non-invasive STM spectroscopy technique.

NATURE (2021)

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Article Multidisciplinary Sciences

Direct visualization of magnetic domains and moire magnetism in twisted 2D magnets

Tiancheng Song et al.

Summary: By studying the magnetic properties of twisted CrI3 materials, emerging magnetic textures and periodic patterns were discovered, confirming the existence of moire superlattices and exploring the coexistence of antiferromagnetic and ferromagnetic domains at different layer thicknesses. This highlights magnetic moire superlattices as a potential platform for exploring nanomagnetism.

SCIENCE (2021)

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Editorial Material Nanoscience & Nanotechnology

The marvels of moire materials

Eva Y. Andrei et al.

Summary: Moire systems formed by 2D atomic layers have versatile electrical and optical properties, hosting exotic phenomena like superconductivity, correlated insulator states, and orbital magnetism. In this Viewpoint, researchers studying various aspects of moire materials discuss the most exciting directions in this rapidly expanding field.

NATURE REVIEWS MATERIALS (2021)

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Article Multidisciplinary Sciences

Flavour Hund's coupling, Chern gaps and charge diffusivity in moire graphene

Jeong Min Park et al.

Summary: Interaction-driven spontaneous symmetry breaking plays a key role in the emergence of correlated and topological ground states in moire systems such as magic-angle twisted bilayer graphene (MATBG). Through thermodynamic and transport measurements, we have observed broken spin/valley 'flavour' symmetry in MATBG and its nontrivial topology. Furthermore, the topological nature of the flat bands is revealed by breaking time-reversal symmetry, leading to the observation of Chern insulator states with different Chern numbers at specific filling factors. Our findings shed light on the understanding of interactions in the topological bands of MATBG, both with and without a magnetic field.

NATURE (2021)

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Article Multidisciplinary Sciences

Position-controlled quantum emitters with reproducible emission wavelength in hexagonal boron nitride

Clarisse Fournier et al.

Summary: Researchers demonstrate the generation of SPE ensembles with enhanced spatial accuracy and emission reproducibility in high purity synthetic hBN using an electron beam, marking a significant step towards accurate control of the spatial location and emission wavelength of SPEs in van der Waals materials.

NATURE COMMUNICATIONS (2021)

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Article Chemistry, Multidisciplinary

Sizable Band Gap in Epitaxial Bilayer Graphene Induced by Silicene Intercalation

Hui Guo et al.

NANO LETTERS (2020)

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Article Multidisciplinary Sciences

Precise control of the interlayer twist angle in large scale MoS2 homostructures

Mengzhou Liao et al.

NATURE COMMUNICATIONS (2020)

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Article Chemistry, Physical

Correlated electronic phases in twisted bilayer transition metal dichalcogenides

Lei Wang et al.

NATURE MATERIALS (2020)

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Article Physics, Multidisciplinary

Flat bands in twisted bilayer transition metal dichalcogenides

Zhiming Zhang et al.

NATURE PHYSICS (2020)

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Review Nanoscience & Nanotechnology

Opportunities and Challenges in Twisted Bilayer Graphene: A Review

Amol Nimbalkar et al.

NANO-MICRO LETTERS (2020)

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Article Multidisciplinary Sciences

Topological superconductivity in a van der Waals heterostructure

Shawulienu Kezilebieke et al.

NATURE (2020)

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Review Chemistry, Physical

Graphene bilayers with a twist

Eva Y. Andrei et al.

NATURE MATERIALS (2020)

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Article Chemistry, Multidisciplinary

The alignment-dependent properties and applications of graphene moire superstructures on the Ru(0001) surface

Leining Zhang et al.

NANOSCALE (2020)

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Article Multidisciplinary Sciences

Tuning superconductivity in twisted bilayer graphene

Matthew Yankowitz et al.

SCIENCE (2019)

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Article Multidisciplinary Sciences

Charge order and broken rotational symmetry in magic-angle twisted bilayer graphene

Yuhang Jiang et al.

NATURE (2019)

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Article Multidisciplinary Sciences

Emergent ferromagnetism near three-quarters filling in twisted bilayer graphene

Aaron L. Sharpe et al.

SCIENCE (2019)

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Article Physics, Applied

Twist-angle modulation of exciton absorption in MoS2/graphene heterojunctions

Xiangzhe Zhang et al.

APPLIED PHYSICS LETTERS (2019)

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Review Chemistry, Multidisciplinary

Epitaxial growth and physical properties of 2D materials beyond graphene: from monatomic materials to binary compounds

Geng Li et al.

CHEMICAL SOCIETY REVIEWS (2018)

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Article Multidisciplinary Sciences

Unconventional superconductivity in magic-angle graphene superlattices

Yuan Cao et al.

NATURE (2018)

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Review Chemistry, Multidisciplinary

Silicene, silicene derivatives, and their device applications

Alessandro Molle et al.

CHEMICAL SOCIETY REVIEWS (2018)

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Article Multidisciplinary Sciences

Correlated insulator behaviour at half-filling in magic-angle graphene superlattices

Yuan Cao et al.

NATURE (2018)

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Article Multidisciplinary Sciences

Twist angle-dependent conductivities across MoS2/graphene heterojunctions

Mengzhou Liao et al.

NATURE COMMUNICATIONS (2018)

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Article Chemistry, Multidisciplinary

Stable Silicene in Graphene/Silicene Van der Waals Heterostructures

Geng Li et al.

ADVANCED MATERIALS (2018)

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Article Instruments & Instrumentation

A low-temperature scanning probe microscopy system with molecular beam epitaxy and optical access

Ze-Bin Wu et al.

REVIEW OF SCIENTIFIC INSTRUMENTS (2018)

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Article Chemistry, Multidisciplinary

Role of Cooperative Interactions in the Intercalation of Heteroatoms between Graphene and a Metal Substrate

Geng Li et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2015)

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Article Materials Science, Multidisciplinary

Large-scale experimental and theoretical study of graphene grain boundary structures

Colin Ophus et al.

PHYSICAL REVIEW B (2015)

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Article Chemistry, Multidisciplinary

All-Metallic Vertical Transistors Based on Stacked Dirac Materials

Yangyang Wang et al.

ADVANCED FUNCTIONAL MATERIALS (2015)

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Article Multidisciplinary Sciences

Van der Waals heterostructures

A. K. Geim et al.

NATURE (2013)

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Article Physics, Condensed Matter

Multi-oriented moire superstructures of graphene on Ir(111): experimental observations and theoretical models

Lei Meng et al.

JOURNAL OF PHYSICS-CONDENSED MATTER (2012)

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Article Physics, Condensed Matter

Graphene based quantum dots

H. G. Zhang et al.

JOURNAL OF PHYSICS-CONDENSED MATTER (2010)

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Article Chemistry, Multidisciplinary

Highly Ordered, Millimeter-Scale, Continuous, Single-Crystalline Graphene Monolayer Formed on Ru (0001)

Yi Pan et al.

ADVANCED MATERIALS (2009)

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Article Physics, Applied

Graphene growth on polycrystalline Ru thin films

E. Sutter et al.

APPLIED PHYSICS LETTERS (2009)

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Article Chemistry, Physical

Epitaxial graphene on ruthenium

Peter W. Sutter et al.

NATURE MATERIALS (2008)

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Construction of twisted graphene-silicene heterostructures

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