4.6k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University College LondonGB816 papers
- Thomas Young CentreGB105 papers
- University of CambridgeGB94 papers
- University of OxfordGB89 papers
- Rutherford Appleton LaboratoryGB87 papers
- Paul Scherrer InstituteCH81 papers
- Centre National de la Recherche ScientifiqueFR78 papers
- Imperial College LondonGB59 papers
- École Polytechnique Fédérale de LausanneCH57 papers
- Brookhaven National LaboratoryUS52 papers
- University of GenevaCH52 papers
- ETH ZurichCH48 papers
32 papers · 1 filter
To wet or not to wet? Dispersion forces tip the balance for water-ice on metals
Javier Carrasco, Biswajit Santra, Jiří Klimeš +1
Despite widespread discussion, the role of van der Waals dispersion forces in wetting remains unclear. Here we show that non-local correlations contribute substantially to the wate…
Ultralong Copper Phthalocyanine Nanowires with New Crystal Structure and Broad Optical Absorption
Hai Wang, Soumaya Mauthoor, Salahud Din +10
The development of molecular nanostructures plays a major role in emerging organic electronic applications, as it leads to improved performance and is compatible with our increasin…
Phonons in potassium doped graphene: the effects of electron-phonon interactions, dimensionality and ad-atom ordering
C. A. Howard, M. P. M. Dean, F. Withers
Graphene phonons are measured as a function of electron doping via the addition of potassium adatoms. In the low doping regime, the in-plane carbon G-peak hardens and narrows with…
Quantum phase transitions in transverse field spin models: from statistical physics to quantum information
Amit Dutta, Gabriel Aeppli, Bikas K. Chakrabarti +3
We review quantum phase transitions of spin systems in transverse magnetic fields taking the examples of the spin-1/2 Ising and XY models in a transverse field. Beginning with an o…
Magnetic and electrical properties of (Pu,Lu)Pd3
M. D. Le, K. A. McEwen, E. Colineau +2
We present measurements of the magnetic susceptibility, heat capacity and electrical resistivity of PuLuPd, with =0, 0.1, 0.2, 0.5, 0.8 and 1. PuPd is an ant…
Phonons and superconductivity in YbC and related compounds
M. H. Upton, T. R. Forrest, A. C. Walters +4
The out-of-plane intercalate phonons of superconducting YbC6 have been measured with inelastic x-ray scattering. Model fits to this data, and previously measured out-of-plane inter…
Coherent and incoherent dynamics in excitonic energy transfer: correlated fluctuations and off-resonance effects
Dara P. S. McCutcheon, Ahsan Nazir
We study the nature of the energy transfer process within a pair of coupled two-level systems (donor and acceptor) subject to interactions with the surrounding environment. Going b…
Quantum dot Rabi rotations beyond the weak exciton-phonon coupling regime
Dara P. S. McCutcheon, Ahsan Nazir
We study the excitonic dynamics of a driven quantum dot under the influence of a phonon environment, going beyond the weak exciton-phonon coupling approximation. By combining the p…
Statics and dynamics of weakly coupled antiferromagnetic spin-1/2 ladders in a magnetic field
Pierre Bouillot, Corinna Kollath, Andreas M. Läuchli +9
We investigate weakly coupled spin-1/2 ladders in a magnetic field. The work is motivated by recent experiments on the compound (C5H12N)2CuBr4 (BPCB). We use a combination of numer…
Coherent Control of Rydberg States in Silicon
P. T. Greenland, S. A. Lynch, A. F. G. van der Meer +5
We demonstrate coherent control of donor wavefunctions in phosphorous-doped silicon. Our experiments take advantage of a free electron laser to stimulate and observe photon echoes…
Contribution of spin pairs to the magnetic response in a dilute dipolar ferromagnet
C. M. S. Gannarelli, D. M. Silevitch, T. F. Rosenbaum +2
We simulate the dc magnetic response of the diluted dipolar-coupled Ising magnet LiHo\(_{0.045}\)Y\(_{0.955}\)F\(_4\) in a transverse field, using exact diagonalization of a two-sp…
Scale-free structural organization of oxygen interstitials in La2CuO4+y
Michela Fratini, Nicola Poccia, Alessandro Ricci +4
It is well known that the microstructures of the transition-metal oxides (refs 1-3), including the high-transition-temperature (high-Tc) copper oxide superconductors (refs 4-7), ar…
Helical spin-waves, magnetic order, and fluctuations in the langasite compound Ba3NbFe3Si2O14
C. Stock, L. C. Chapon, A. Schneidewind +6
We have investigated the spin fluctuations in the langasite compound Ba3NbFe3Si2O14 in both the ordered state and as a function of temperature. The low temperature magnetic structu…
Bulk and surface energetics of lithium hydride crystal: benchmarks from quantum Monte Carlo and quantum chemistry
S. J. Binnie, S. J. Nolan, N. D. Drummond +4
We show how accurate benchmark values of the surface formation energy of crystalline lithium hydride can be computed by the complementary techniques of quantum Monte Carlo (QMC) an…
One dimensional Si-in-Si(001) template for single-atom wire growth
J. H. G. Owen, F. Bianco, S. A. Köster +3
Single atom metallic wires of arbitrary length are of immense technological and scientific interest. We describe a novel silicon-only template enabling the self-organised growth of…
A Causal Net Approach to Relativistic Quantum Mechanics
R. D. Bateson
In this paper we discuss a causal network approach to describing relativistic quantum mechanics. Each vertex on the causal net represents a possible point event or particle observa…
Complete bond-operator theory of the two-chain spin ladder
B. Normand, Ch. Rüegg
The discovery of the almost ideal, two-chain spin-ladder material (C_5H_12N)_2CuBr_4 has once again focused attention on this most fundamental problem in low-dimensional quantum ma…
Antiferromagnetically spin polarized oxygen observed in magneto-electric TbMn2O5
T. A. W. Beale, S. B. Wilkins, R. D. Johnson +8
We report the direct measurement of antiferromagnetic spin polarization at the oxygen sites in the multiferroic TbMn2O5, through resonant soft x-ray magnetic scattering. This suppo…
Analysis of quantum coherence in bismuth-doped silicon: a system of strongly coupled spin qubits
M. H. Mohammady, G. W. Morley, A. Nazir +1
There is growing interest in bismuth-doped silicon (Si:Bi) as an alternative to the well-studied proposals for silicon based quantum information processing (QIP) using phosphorus-d…
Inelastic x-ray scattering investigations of lattice dynamics in SmFeAsOF superconductors
M. Le Tacon, T. R. Forrest, Ch. Rüegg +10
We report measurements of the phonon density of states as measured with inelastic x-ray scattering in SmFeAsOF powders. An unexpected strong renormalization of phonon b…
Anisotropy of Magnetic Interactions in the Spin-Ladder Compound (CHN)CuBr
E. Čižmár, M. Ozerov, J. Wosnitza +8
Magnetic excitations in the spin-ladder material (CHN)CuBr [BPCB] are probed by high-resolution multi-frequency electron spin resonance (ESR) spectroscopy. Our e…
Electric field control of multiferroic domains in NiVO imaged by X-ray polarization enhanced topography
F. Fabrizi, H. C. Walker, L. Paolasini +7
The magnetic structure of multiferroic NiVO has been investigated using non-resonant X-ray magnetic scattering. Incident circularly polarized X-rays combined with full…
Ab initio statistical mechanics of surface adsorption and desorption: II. Nuclear quantum effects
D. Alfe`, M. J. Gillan
We show how the path-integral formulation of quantum statistical mechanics can be used to construct practical {\em ab initio} techniques for computing the chemical potential of mol…
Initializing, manipulating and storing quantum information with bismuth dopants in silicon
Gavin W. Morley, Marc Warner, A. Marshall Stoneham +4
A prerequisite for exploiting spins for quantum data storage and processing is long spin coherence times. Phosphorus dopants in silicon (Si:P) have been favoured as hosts for such…