4.8 Article

Moire-Assisted Strain Transfer in Vertical van der Waals Heterostructures

Related references

Note: Only part of the references are listed.
Article Physics, Applied

Moire engineering in 2D heterostructures with process-induced strain

Tara Pena et al.

Summary: We demonstrate controllable manipulation of a moire superlattice interference pattern in twisted bilayer graphene through the use of designable device-level heterostrain. By depositing stressed thin films onto the graphene samples, we can control the magnitude and directionality of heterostrain. Raman spectroscopy and simulations confirm the breaking of C-3 rotational symmetry and tunable periodicity in the moire superlattices under uniaxial or biaxial strain.

APPLIED PHYSICS LETTERS (2023)

Article Chemistry, Physical

Strain engineering in single-, bi- and tri-layer MoS2, MoSe2, WS2 and WSe2

Felix Carrascoso et al.

Summary: This research utilizes strain to modify the optical properties of semiconducting transition metal dichalcogenides, with a focus on MoS2, MoSe2, WS2, and WSe2. The study provides detailed technical descriptions for performing uniaxial strain measurements and proposes a calibration method for accurately determining the applied strain. Reflectance spectroscopy is then employed to analyze the strain tunability of electronic properties in single-, bi-, and tri-layer MoS2, MoSe2, WS2, and WSe2, with an assessment of flake-to-flake variability in 15 single-layer MoS2 flakes.

NANO RESEARCH (2021)

Article Chemistry, Physical

Excitons in a reconstructed moire potential in twisted WSe2/WSe2 homobilayers

Trond Andersen et al.

Summary: Recent advancements have allowed for direct imaging of stacking domains in van der Waals heterostructures, enabling a better understanding of the correlation between moire structures and electronic/optical properties. Through this technique, researchers were able to investigate reconstructed moire patterns in twisted WSe2/WSe2 bilayers and identify the emergence of distinct exciton species in photoluminescence measurements, with the ability to tune these states individually through electrostatic gating.

NATURE MATERIALS (2021)

Article Multidisciplinary Sciences

Quantum anomalous Hall effect from intertwined moire bands

Tingxin Li et al.

Summary: This study reveals the observation of quantum anomalous Hall effect in AB-stacked MoTe2/WSe2 moire heterobilayers, which exhibits unique band topology characteristics. At half band filling, quantized Hall resistance and vanishing longitudinal resistance are observed, indicating a topological phase transition induced by an out-of-plane electric field.

NATURE (2021)

Article Chemistry, Multidisciplinary

Site-Controlled Quantum Emitters in Monolayer MoSe2

Leo Yu et al.

Summary: Atomically thin semiconductors offer an attractive platform for quantum emitters, although reported quantum emitters in these materials have relied on spin-forbidden transitions. By employing strain confinement in monolayer MoSe2, engineered quantum emitters with radiative rates exceeding those of other solid-state systems have been produced.

NANO LETTERS (2021)

Article Materials Science, Multidisciplinary

Twist versus heterostrain control of optical properties of moire exciton minibands

Huiyuan Zheng et al.

Summary: In this study, we investigate the optical properties of interlayer excitons in heterobilayer transition metal dichalcogenides where moire pattern is introduced by heterostrain, in comparison with that introduced by twisting. We find that besides causing moire texture, strain also introduces a constant gauge potential, leading to distinct exciton mini-band dispersions and light coupling properties compared to twisting. For strain breaking the three-fold rotational symmetry, exciton wave packets have elliptically polarized valley optical selection rules.

2D MATERIALS (2021)

Article Multidisciplinary Sciences

Simulation of Hubbard model physics in WSe2/WS2 moire superlattices

Yanhao Tang et al.

NATURE (2020)

Article Multidisciplinary Sciences

Mott and generalized Wigner crystal states in WSe2/WS2 moire superlattices

Emma C. Regan et al.

NATURE (2020)

Article Materials Science, Multidisciplinary

Strain engineering in monolayer WS2and WS2nanocomposites

Fang Wang et al.

2D MATERIALS (2020)

Article Nanoscience & Nanotechnology

Visualization of moire superlattices

Leo J. McGilly et al.

NATURE NANOTECHNOLOGY (2020)

Article Computer Science, Information Systems

Movable-Type Transfer and Stacking of van der Waals Heterostructures for Spintronics

Yuan Cao et al.

IEEE ACCESS (2020)

Article Physics, Multidisciplinary

SUPERLUBRICITY: Friction's vanishing act

Jean Michel Martin et al.

PHYSICS TODAY (2018)

Article Nanoscience & Nanotechnology

Inhomogeneous Strain Release during Bending of WS2 on Flexible Substrates

Martin E. P. Tweedie et al.

ACS APPLIED MATERIALS & INTERFACES (2018)

Article Materials Science, Multidisciplinary

Strain tuning of excitons in monolayer WSe2

Ozgur Burak Aslan et al.

PHYSICAL REVIEW B (2018)

Article Materials Science, Multidisciplinary

Relaxation and domain formation in incommensurate two-dimensional heterostructures

Stephen Carr et al.

PHYSICAL REVIEW B (2018)

Article Chemistry, Multidisciplinary

Biaxial Strain Transfer in Supported Graphene

C. Bousige et al.

NANO LETTERS (2017)

Article Physics, Applied

Strain engineering in monolayer WS2, MoS2, and the WS2/MoS2 heterostructure

Xin He et al.

APPLIED PHYSICS LETTERS (2016)

Article Chemistry, Multidisciplinary

Strain-Induced Electronic Structure Changes in Stacked van der Waals Heterostructures

Yongmin He et al.

NANO LETTERS (2016)

Article Chemistry, Multidisciplinary

Precise and reversible band gap tuning in single-layer MoSe2 by uniaxial strain

Joshua O. Island et al.

NANOSCALE (2016)

Review Multidisciplinary Sciences

Valley excitons in two-dimensional semiconductors

Hongyi Yu et al.

NATIONAL SCIENCE REVIEW (2015)

Article Multidisciplinary Sciences

Strain and structure heterogeneity in MoS2 atomic layers grown by chemical vapour deposition

Zheng Liu et al.

NATURE COMMUNICATIONS (2014)

Article Chemistry, Multidisciplinary

Interfacial Stress Transfer in a Graphene Monolayer Nanocomposite

Lei Gong et al.

ADVANCED MATERIALS (2010)