High-resolution three-dimensional imaging of topological textures in single-diamond networks

Kavli Affiliate: Ulrich B. Wiesner | First 5 Authors: Dmitry Karpov, Kenza Djeghdi, Mirko Holler, S. Narjes Abdollahi, Karolina Godlewska | Summary: Highly periodic structures are often said to convey the beauty of nature. However, most material properties are strongly influenced by the defects they contain. On the mesoscopic scale, molecular self-assembly exemplifies this interplay; […]


Continue.. High-resolution three-dimensional imaging of topological textures in single-diamond networks

High-resolution three-dimensional imaging of topological textures in single-diamond networks

Kavli Affiliate: Ulrich Wiesner | Summary:Highly periodic structures are often said to convey the beauty of nature. However, most material properties are strongly influenced by the defects they contain. On the mesoscopic scale, molecular self-assembly exemplifies this interplay; thermodynamic principles determine short-range order, but long-range order is mainly impeded by the kinetic history of the […]


Continue.. High-resolution three-dimensional imaging of topological textures in single-diamond networks

Coherent control of the translational and point group symmetries of crystals with light

Kavli Affiliate: Nicole A. Benedek | First 5 Authors: Guru Khalsa, Jeffrey Z. Kaaret, Nicole A. Benedek, , | Summary: We use theory and first-principles calculations to explore mechanisms for control of the translational and point group symmetries of crystals in ultrafast optical experiments. We focus in particular on mechanisms that exploit anharmonic (biquadratic) lattice […]


Continue.. Coherent control of the translational and point group symmetries of crystals with light

Coherent control of the translational and point group symmetries of crystals with light

Kavli Affiliate: Nicole A. Benedek | Summary:We use theory and first-principles calculations to explore mechanisms for control of the translational and point group symmetries of crystals in ultrafast optical experiments. We focus in particular on mechanisms that exploit anharmonic (biquadratic) lattice couplings between a driven infrared-active phonon mode and other modes at arbitrary wave vector, […]


Continue.. Coherent control of the translational and point group symmetries of crystals with light

Non-linear optics at twist interfaces in h-BN/SiC heterostructures

Kavli Affiliate: Zhiting Tian | First 5 Authors: Abhijit Biswas, Rui Xu, Gustavo A. Alvarez, Jin Zhang, Joyce Christiansen-Salameh | Summary: Understanding the emergent electronic structure in twisted atomically thin layers has led to the exciting field of twistronics. However, practical applications of such systems are challenging since the specific angular correlations between the layers […]


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Imaging 3D Chemistry at 1 nm Resolution with Fused Multi-Modal Electron Tomography

Kavli Affiliate: Richard D. Robinson | Summary:Measuring the three-dimensional (3D) distribution of chemistry in nanoscale matter is a longstanding challenge for metrological science. The inelastic scattering events required for 3D chemical imaging are too rare, requiring high beam exposure that destroys the specimen before an experiment completes. Even larger doses are required to achieve high […]


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X-ray nanotomography reveals formation of single diamonds by block copolymer self-assembly

Kavli Affiliate: Ulrich Wiesner | Summary:Block copolymers are recognised as a valuable platform for creating nanostructured materials with unique properties. Morphologies formed by block copolymer self-assembly can be transferred into a wide range of inorganic materials, enabling applications including energy storage and metamaterials. However, imaging of the underlying, often complex, nanostructures in large volumes has […]


Continue.. X-ray nanotomography reveals formation of single diamonds by block copolymer self-assembly

Optical readout of the chemical potential of two-dimensional electrons

Kavli Affiliate: Jie Shan | First 5 Authors: Zhengchao Xia, Yihang Zeng, Bowen Shen, Roei Dery, Kenji Watanabe | Summary: The chemical potential u of an electron system is a fundamental property of a solid. A precise measurement of u plays a crucial role in understanding the electron interaction and quantum states of matter. However, […]


Continue.. Optical readout of the chemical potential of two-dimensional electrons

Optical readout of the chemical potential of two-dimensional electrons

Kavli Affiliate: Jie Shan | First 5 Authors: Zhengchao Xia, Yihang Zeng, Bowen Shen, Roei Dery, Kenji Watanabe | Summary: The chemical potential u of an electron system is a fundamental property of a solid. A precise measurement of u plays a crucial role in understanding the electron interaction and quantum states of matter. However, […]


Continue.. Optical readout of the chemical potential of two-dimensional electrons