Topology is everywhere

May 19, 2022 (Nanowerk News) For the past century, students of chemistry, materials science, and physics have been taught to model solid-state materials by considering their chemical composition, the number and location of their electrons, and lastly, the role of more complicated interactions. However, an international team of scientists from...

Spin keeps electrons in line in iron-based superconductor

May 19, 2022 (Nanowerk News) Researchers from PSI’s Spectroscopy of Quantum Materials group together with scientists from Beijing Normal University have solved a puzzle at the forefront of research into iron-based superconductors: the origin of FeSe’s electronic nematicity. Using Resonant inelastic X-ray scattering (RIXS) at the Swiss Light Source (SLS),...

Structural color revolutionizes microfluidic fabrication

May 19, 2022 (Nanowerk News) Microfluidic devices use tiny spaces to manipulate very small quantities of liquids and gasses by taking advantage of the properties they exhibit at the microscale. They have demonstrated usefulness in applications from inkjet printing to chemical analysis and have great potential in personal medicine, where...

a bond between David and Goliath

May 19, 2022 (Nanowerk News) When single particles like atoms and ions bond, molecules emerge. Such bonds between to particles can arise if they have for example opposite electrical charges and hence attract each other. The molecule observed at the University of Stuttgart exhibits a special feature: It consists of...

Accelerating the pace of machine learning

May 19, 2022 (Nanowerk News) Machine learning happens a lot like erosion. Data is hurled at a mathematical model like grains of sand skittering across a rocky landscape. Some of those grains simply sail along with little or no impact. But some of them make their mark: testing, hardening, and...