New experimental and theoretical evidence identifies jacutingaite as a dual-topology insulator

New collaborative work involving NCCR MARVEL researchers has provided additional insight into the nature of jacutingaite (Pt2HgSe3), a species of platinum-group mineral first discovered in a Brazilian mine in 2008. The new studies show that the material is one of only a few known dual-topological insulators, featuring different surface states that are linked to crystalline symmetries rather than to the topological properties of the 2D monolayer, which is a quantum spin Hall insulator (QSHI). The work has been published in Physical Review Letters and Physical Review Research. 

Dialing flat bands in twisted double bilayer graphene

Researchers including Professor Oleg Yazyev, chair of Chair of Computational Condensed Matter Physics at EPFL, and scientist QuanSheng Wu have shown that flat bands are a fundamental feature twisted double bilayer graphene (TDBG) rather than the result of any external fields and have identified a so-called magic angle of 1.3 degrees, at which both electron and hole gaps are maximized. A separate paper, published together with experimental colleagues in China, shows that TDBG is an easily tunable platform for exploring quantum many-body states thanks to vertical displacement fields. The corresponding papers were recently published in Nano Letters and Nature Physics, respectively. 

Four new Agility Plus projects to cover research topics from crystal packing to topological materials

NCCR MARVEL Agility Plus grants are targeted at new junior PIs, particularly women, to help support either experimental or theoretical research that can be integrated into existing MARVEL projects. The grants will support a PhD student or half a postdoc between May 2020 and April 2022. The latest round of funding has now been granted to four projects covering topics ranging from machine learning in the sampling of crystal packing to topological materials with intrinsic magnetic ordering. The following projects, proposed respectively by Prof. Sereina Riniker, Dr. Emiliana Fabbri, Prof. Marta Gibert and Prof. Ana Akrap,  have been funded.   

Michele Parrinello to be awarded 2020 European Chemistry Gold Medal

Michele Parrinello, professor of Computational Sciences at ETH Zurich and the Università della Svizzera italiana as well as group leader in NCCR MARVEL's Design & Discovery Project 1, will be awarded the 2020 European Chemistry Gold Medal in recognition of his exceptional achievements in the field.

Psi-k conference

Psi-k 2022 is the 6th general conference for the worldwide Psi-k community. Typically held every 5 years, this event is the largest worldwide in first-principles simulations. With more than 1000 participants attending the past 2010 and 2015 editions, it promises to be the most exciting, defining event in the field, offering an intense but enjoyable atmosphere, in addition to a chance to explore the beautiful region around Lausanne and Lake Geneva.