369 citations · 1.1k across the 32 of their papers we have counts for
23 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…
Phase Transition of single-layer vanadium diselenide on Au(111) with distinguished electronic structures
Jinbang Hu, Xiansi Wang, Chaoqin Huang +2
Herein, we report the reversible structural transition of single-layer VSe2 grown on Au(111) through alternating thermal annealing and Se replenishment. Using scanning tunneling mi…
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…
Chiral Quantum well Rashba splitting in Sb monolayer on Au(111)
Jinbang Hu, Lina Liu, Xiansi Wang +2
We present a comprehensive investigation into the atomic and electronic structures of a single-layer Sb(110) rhombohedral crystal formed on an Au(111) substrate. Low-energy electro…
An energy-dependent broadening of Rashba-like spin splitting in Au2Sb surface alloy with periodic structural defect
Jinbang Hu, Xiansi Wang, Anna Cecilie Åsland +1
Here, we report a novel AuSb 2D superstructure on Au(111) that shows agreements and discrepancies to the expected electronic features of the ideal 2D surface alloys with $\sqrt{3}\…
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,…
The Diamond (111) Surface Reconstruction and Epitaxial Graphene Interface
B. P. Reed, M. E. Bathen, J. W. R. Ash +6
The evolution of the diamond (111) surface as it undergoes reconstruction and subsequent graphene formation is investigated with angle-resolved photoemission spectroscopy, low ener…
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…
Observation and origin of the -manifold in Si:P -layers
Ann Julie Holt, Sanjoy K. Mahatha, Raluca-Maria Stan +9
By creating a sharp and dense dopant profile of phosphorus atoms buried within a silicon host, a two-dimensional electron gas is formed within the dopant region. Quantum confinemen…
The occupied electronic structure of ultrathin boron doped diamond
A. K. Schenk, A. C. Pakpour-Tabrizi, A. J. U. Holt +9
Using angle-resolved photoelectron spectroscopy, we compare the electronic band structure of an ultrathin (1.8 nm) δ-layer of boron-doped diamond with a bulk-like boron doped diamo…
Phonon-induced linewidths of graphene electronic states
B. Hellsing, T. Frederiksen, F. Mazzola +2
The linewidths of the electronic bands originating from the electron-phonon coupling in graphene are analyzed based on model tight-binding calculations and experimental angle-resol…
Simultaneous conduction and valence band quantisation in ultra-shallow, high density doping profiles in semiconductors
F. Mazzola, J. W. Wells, A. C. Pakpour-Tabrizi +4
We demonstrate simultaneous quantisation of conduction band (CB) and valence band (VB) states in silicon using ultra-shallow, high density, phosphorus doping profiles (so-called Si…
Ubiquitous formation of bulk Dirac cones and topological surface states from a single orbital manifold in transition-metal dichalcogenides
M. S. Bahramy, O. J. Clark, B. -J. Yang +23
Transition-metal dichalcogenides (TMDs) are renowned for their rich and varied properties. They range from metals and superconductors to strongly spin-orbit-coupled semiconductors…
Hierarchical spin-orbital polarisation of a giant Rashba system
L. Bawden, J. M. Riley, C. H. Kim +15
The Rashba effect is one of the most striking manifestations of spin-orbit coupling in solids, and provides a cornerstone for the burgeoning field of semiconductor spintronics. It…
Silver catalyzed Fluorouracil degradation; a promising new role for graphene
Federico Mazzola, Thuat Trinh, Simon Cooil +9
Chemotherapy treatment usually involves the delivery of fluorouracil (5-Fu) together with other drugs through central venous catheters. Catheters and their connectors are increasin…
Direct observation of spin-polarised bulk bands in an inversion-symmetric semiconductor
J. M. Riley, F. Mazzola, M. Dendzik +14
Methods to generate spin-polarised electronic states in non-magnetic solids are strongly desired to enable all-electrical manipulation of electron spins for new quantum devices. Th…
Thickness dependence of dynamic and static magnetic properties of pulsed laser deposited LaSrMnO films on SrTiO(001)
Åsmund Monsen, Jos E. Boschker, Ferran Macià +6
We present a comprehensive study of the thickness dependence of static and magneto-dynamic magnetic properties of LaSrMnO. Epitaxial pulsed laser deposited La$_…
Excitation of coherent phonons in the one-dimensional Bi(114) surface
D. Leuenberger, H. Yanagisawa, S. Roth +5
We present time-resolved photoemission experiments from a peculiar bismuth surface, Bi(114). The strong one-dimensional character of this surface is reflected in the Fermi surface,…
Direct band structure measurement of a buried two-dimensional electron gas
Jill A. Miwa, Philip Hofmann, Michelle Y. Simmons +1
Buried two dimensional electron gasses (2DEGs) have recently attracted considerable attention as a testing ground for both fundamental physics and quantum computation applications.…
Robust Surface Doping of BiSe by Rb Intercalation
Marco Bianchi, Richard C. Hatch, Zheshen Li +11
Rubidium adsorption on the surface of the topological insulator BiSe is found to induce a strong downward band bending, leading to the appearance of a quantum-confined two…