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- University College LondonGB112 papers
- Paul Scherrer InstituteCH18 papers
- ETH ZurichCH14 papers
- Rutherford Appleton LaboratoryGB14 papers
- École Polytechnique Fédérale de LausanneCH13 papers
- University of OxfordGB12 papers
- Institut Laue-LangevinFR11 papers
- University of BristolGB10 papers
- Brookhaven National LaboratoryUS8 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- European Synchrotron Radiation FacilityFR8 papers
- University of BernCH7 papers
34 papers · 1 filter
Direct Observation of Magnon Fractionalization in the Quantum Spin Ladder
B. Thielemann, Ch. Rüegg, H. M. Rønnow +12
We measure by inelastic neutron scattering the spin excitation spectra as a function of applied magnetic field in the quantum spin-ladder material (C5H12N)2CuBr4. Discrete magnon m…
Nanomechanical detection of antibiotic-mucopeptide binding in a model for superbug drug resistance
J. W. Ndieyira, M. Watari, A. Donoso Barrera +10
The alarming growth of the antibiotic-resistant superbugs methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant Enterococcus (VRE) is driving the development…
Silicon as a model ion trap: time domain measurements of donor Rydberg states
N Q Vinh, P T Greenland, K Litvinenko +9
One of the great successes of quantum physics is the description of the long-lived Rydberg states of atoms and ions. The Bohr model is equally applicable to donor impurity atoms in…
Dipole-active optical phonons in YTiO_3: ellipsometry study and lattice-dynamics calculations
N. N. Kovaleva, A. V. Boris, L. Capogna +6
The anisotropic complex dielectric response was accurately extracted from spectroscopic ellipsometry measurements at phonon frequencies for the three principal crystallographic dir…
Toward Perfection: Kapellasite, Cu3Zn(OH)6Cl2, a New Model S = 1/2 Kagome Antiferromagnet
R. H. Colman, C. Ritter, A. S. Wills
The search for the resonating valence bond (RVB) state continues to underpin many areas of condensed matter research. The RVB is made from the dimerisation of spins on different si…
Hydrogen dissociation on the Mg(0001) surface from quantum Monte Carlo calculations
M. Pozzo, D. Alfe`
We have used diffusion Monte Carlo (DMC) simulations to calculate the energy barrier for H dissociation on the Mg(0001) surface. The calculations employ pseudopotentials and sy…