109 citations · 300 across the 7 of their papers we have counts for
7 papers
Photoluminescence from Silicon nanoparticles embedded in ammonium silicon hexafluoride
Seref Kalem, Peter Werner, Vadim Talalaev +3
Silicon (Si) nanoparticles (NPs) were synthesized by transforming Si wafer surface to ammonium silicon hexafluoride (ASH) or (NH4)2SiF6 under acid vapor treatment. Si-NPs are embed…
Spin-orbit physics of j=1/2 Mott insulators on the triangular lattice
Michael Becker, Maria Hermanns, Bela Bauer +2
The Heisenberg-Kitaev (HK) model on the triangular lattice is conceptually interesting for its interplay of geometric and exchange frustration. HK models are also thought to captur…
Interplay between Kondo and Majorana interactions in quantum dots
Meng Cheng, Michael Becker, Bela Bauer +1
We study the properties of a quantum dot coupled to a one-dimensional topological superconductor and a normal lead and discuss the interplay between Kondo and Majorana-induced coup…
Real-space renormalization group flow in quantum impurity systems: local moment formation and the Kondo screening cloud
Andrew K. Mitchell, Michael Becker, Ralf Bulla
The existence of a length-scale (with the Kondo temperature) has long been predicted in quantum impurity systems. At low temperatures , the standard…
Surface reconstruction and energy gap of superconducting V3Si(001)
N. Hauptmann, M. Becker, J. Kroeger +1
A yet unknown surface reconstruction of V3Si(001), which is most likely induced by carbon, is used to investigate the quasi-particle energy gap at the atomic scale by a cryogenic s…
Lifetimes of electrons in the Shockley surface state band of Ag(111)
M. Becker, S. Crampin, R. Berndt
We present a theoretical many-body analysis of the electron-electron (e-e) inelastic damping rate of electron-like excitations in the Shockley surface state band of Ag(111). It…
Theoretical analysis of STM-derived lifetimes of excitations in the Shockley surface state band of Ag(111)
M. Becker, S. Crampin, R. Berndt
We present a quantitative many-body analysis using the GW approximation of the decay rate due to electron-electron scattering of excitations in the Shockley surface state band…