Strain-tuning of domain walls in multilayer graphene probed in the quantum Hall regime

Anderson, Paul E.; Huang, Yanghong; Fan, Yuanjun; Qubbaj, Sara; Coh, Sinisa; Zhou, Qin; Ojeda‐Aristizabal, Claudia

doi:10.1103/physrevb.105.l081408

Cited by 6 publications

(3 citation statements)

References 43 publications

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“…In a previous work, we demonstrated the in situ tuning of dislocations in multilayer graphene probed through electronic transport . Here, we report using strain-tunable graphene resonators in the study of dislocation-related energy dissipation.…”

Section: Introductionmentioning

confidence: 91%

“…In a previous work, we demonstrated the in situ tuning of dislocations in multilayer graphene probed through electronic transport. 24 Here, we report using strain-tunable graphene resonators in the study of dislocation-related energy dissipation. We constructed a MEMS-graphene hybrid device, where we use silicon-based microactuators to apply in-plane strain to a suspended graphene ribbon.…”

Section: ■ Introductionmentioning

confidence: 99%

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Dislocation-Induced Energy Dissipation in a Tunable Trilayer Graphene Resonator

Yang

Huang²,

Liu

et al. 2022

J. Phys. Chem. C

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In crystalline materials, the creation and modulation of dislocations are often associated with plastic deformation and energy dissipation. Here, we report a study on the energy dissipation of a trilayer graphene ribbon resonator. The vibration of the ribbon generates cyclic mechanical loading to the graphene ribbon during which mechanical energy is dissipated as heat. Measuring the quality factor of the graphene resonator provides a method to evaluate the energy dissipation. The graphene ribbon is integrated with silicon microactuators, allowing its in-plane tension to be finely tuned. As we gradually increased the tension, we observed, in addition to the well-known resonance frequency increase, a large change in the energy dissipation. We propose that the dominating energy dissipation mechanism shifts over three regions. With small applied tension, the graphene is in the elastic region, and the major energy dissipation is through graphene edge folding; as the tension increases, dislocations start to develop in the sample to gradually dominate the energy dissipation; finally, at large enough tension, graphene layers become decoupled and start to slide and cause friction, which induces more severe energy dissipation. The generation and modulation of dislocations are modeled by the molecular dynamics calculation and a method to count the energy loss is proposed and compared with the experiment.

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Section: Introductionmentioning

confidence: 91%

Section: ■ Introductionmentioning

confidence: 99%

Dislocation-Induced Energy Dissipation in a Tunable Trilayer Graphene Resonator

Yang

Huang²,

Liu

et al. 2022

J. Phys. Chem. C

Self Cite

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“…With the rapid development of material science, small-sized samples in micron dimension are widely synthesized and studied [ 10 , 11 , 12 ]. As is known, graphene has attracted a significant amount of interest from researchers [ 13 , 14 ]. In recent years, the discovery of magic-angle bilayer graphene [ 15 , 16 , 17 ] has further improved the research enthusiasm for few-layer materials.…”

Section: Introductionmentioning

confidence: 99%

Atomic-Resolution Imaging of Micron-Sized Samples Realized by High Magnetic Field Scanning Tunneling Microscopy

Wang

Zhang

et al. 2023

Micromachines

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Scanning tunneling microscopy (STM) can image material surfaces with atomic resolution, making it a useful tool in the areas of physics and materials. Many materials are synthesized at micron size, especially few-layer materials. Limited by their complex structure, very few STMs are capable of directly positioning and imaging a micron-sized sample with atomic resolution. Traditional STMs are designed to study the material behavior induced by temperature variation, while the physical properties induced by magnetic fields are rarely studied. In this paper, we present the design and construction of an atomic-resolution STM that can operate in a 9 T high magnetic field. More importantly, the homebuilt STM is capable of imaging micron-sized samples. The performance of the STM is demonstrated by high-quality atomic images obtained on a graphite surface, with low drift rates in the X–Y plane and Z direction. The atomic-resolution image obtained on a 32-μm graphite flake illustrates the new STM’s ability of positioning and imaging micron-sized samples. Finally, we present atomic resolution images at a magnetic field range from 0 T to 9 T. The above advantages make our STM a promising tool for investigating the quantum hall effect of micron-sized layered materials.

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Controlling spin polarization of gapless states in defected trilayer graphene with a gate voltage

Jaskólski

2024

Physica E: Low-dimensional Systems and Nanostructures

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Strain-tuning of domain walls in multilayer graphene probed in the quantum Hall regime

Cited by 6 publications

References 43 publications

Dislocation-Induced Energy Dissipation in a Tunable Trilayer Graphene Resonator

Dislocation-Induced Energy Dissipation in a Tunable Trilayer Graphene Resonator

Atomic-Resolution Imaging of Micron-Sized Samples Realized by High Magnetic Field Scanning Tunneling Microscopy

Controlling spin polarization of gapless states in defected trilayer graphene with a gate voltage

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