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 […]

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 […]

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, […]

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 […]

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 […]

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 […]

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, […]

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, […]

Kavli Affiliate: Zhiting Tian | First 5 Authors: Abhijit Biswas, Rui Xu, Joyce Christiansen-Salameh, Eugene Jeong, Gustavo A. Alvarez | Summary: Boron nitride (BN) is an exceptional material and among its polymorphs, two-dimensional (2D) hexagonal and three-dimensional (3D) cubic BN (h-BN and c-BN) phases are most common. The phase stability regimes of these BN phases […]