24 citations · 59 across the 8 of their papers we have counts for
7 papers · 1 filter
Direct measurement of 2DEG states in shallow Si:Sb -layers
Frode S. Strand, Simon P. Cooil, Quinn T. Campbell +13
We investigate the electronic structure of high-density layers of Sb dopants in a silicon host, so-called Si:Sb -layers. We show that, in spite of the known challenges in produc…
Phonon-Mediated Quasiparticle Lifetime Renormalizations in Few-Layer Hexagonal Boron Nitride
Håkon I. Røst, Simon P. Cooil, Anna Cecilie Åsland +9
Understanding the collective behavior of the quasiparticles in solid-state systems underpins the field of non-volatile electronics, including the opportunity to control many-body e…
Probing the Atomic Arrangement of Sub-Surface Dopants in a Silicon Quantum Device Platform
Håkon I. Røst, Ezequiel Tosi, Frode S. Strand +4
High-density structures of sub-surface phosphorus dopants in silicon continue to garner interest as a silicon-based quantum computer platform, however, a much-needed confirmation o…
Disentangling Electron-Boson Interactions on the Surface of a Familiar Ferromagnet
Håkon I. Røst, Federico Mazzola, Johannes Bakkelund +5
We report energy renormalizations from electron-phonon and electron-magnon interactions in spin minority surface resonances on Ni(111). The different interactions are identified, d…
One-Dimensional Spin-Polarised Surface States -- A Comparison of Bi(112) with Other Vicinal Bismuth Surfaces
Anna Cecilie Åsland, Johannes Bakkelund, Even Thingstad +8
Vicinal surfaces of bismuth are unique test-beds for investigating one-dimensional (1D) spin-polarised surface states that may one day be used in spintronic devices. In this work,…
Electron-magnon coupling and quasiparticle lifetimes on the surface of a topological insulator
Kristian Mæland, Håkon I. Røst, Justin W. Wells +1
The fermionic self-energy on the surface of a topological insulator proximity coupled to ferro- and antiferromagnetic insulators is studied. An enhanced electron-magnon coupling is…
Low Temperature Growth of Graphene on Semiconductor
Håkon I. Røst, Rajesh K. Chellappan, Frode S. Strand +13
The industrial realization of graphene has so far been limited by challenges related to the quality, reproducibility, and high process temperatures required to manufacture graphene…