Andreas Rydh

Surface plasmons at single nanoholes in Au films

The generation of surface plasmon polaritons (SPPs) at isolated nanoholes in 100nm thick Au films is studied using near-field scanning optical microscopy. Finite-difference time-domain calculations, some explicitly including a model of the scanning tip, are used to interpret the results. We find the holes act as point-like sources of SPPs and demonstrate that the interference between the SPP and a directly transmitted wave allows determination of the wavelength, phase, and decay length of the SPP. The near-field intensity patterns can be manipulated by varying the angle and polarization of the incident beam.

Superconducting transition and phase diagram of single-crystal MgB2

The superconducting phase diagram of

Superconducting phase diagram of single-crystal MgB2

{\mathrm{MgB}}_{2}

Two-band effects in the angular dependence of H{sub c2} of MgB{sub 2} single crystals.

was determined from magnetization, magnetotransport, and single-crystal specific-heat measurements. A zero-temperature in-plane coherence length of 9.4 nm is determined. The superconducting anisotropy \ensuremath{\gamma} increases from a value around 2 near

Surface contribution to the superconducting properties of MgB2 single crystals

{T}_{c}

Evidence for Nonlocal Electrodynamics in Planar Josephson Junctions

to above 4.5 at 22 K. For

Signatures of the electronic nature of pairing in high-T(c) superconductors obtained by non-equilibrium boson spectroscopy.

H\ensuremath{\parallel}c

Differential membrane-based nanocalorimeter for high-resolution measurements of low-temperature specific heat

a pronounced peak effect in the critical current occurs at the upper critical field. Evidence for a surface superconducting state is presented for

Anisotropic phase diagram and superconducting fluctuations of single-crystalline SmFeAsO(0.85)F(0.15)

H\ensuremath{\parallel}c

Coherent generation of phonon-polaritons in Bi2Sr2CaCu2O8+x intrinsic Josephson junctions

that might account for the widespread in reported values of \ensuremath{\gamma}.