Wednesday, 26 August 2020

Fast electrical modulation of nanoscale erbium-graphene systems towards quantum technology applications

A research recently published in Nature Communications shows that a nanolayer of erbium light emitters combined with monolayer graphene exhibits extremely strong near-field interactions, whose strength can be modulated orders of magnitude faster than the natural decay rate of the erbium emitters. This hybrid erbium-graphene material platform opens up exciting possibilities, including manipulation of quantum states. This study has been carried out by a team of scientists that includes ICN2 Junior Group Leader Dr Klaas-Jan Tielrooij, and colleagues from ICFO in Barcelona and IRCP in Paris.

Monday, 17 August 2020

New theoretical studies of material properties as a function of thickness in chalcogenides

A study carried out by researchers from the Institute for Theoretical Solid State Physics in Aachen (Germany) and from the ICN2, and recently published in Advanced Materials Communications, reveals that materials of two subfamilies of chalcogenides show different dependence of their properties on slab thickness. This reflects on ferroelectric characteristics, which are relevant to their applications in information technology.