Towards a quantitative theory for transmission X-ray microscopy

• James G. McNally,
• Christoph Pratsch,
• Stephan Werner,
• Stefan Rehbein,
• Andrew Gibbs,
• Jihao Wang,
• Thomas Lunkenbein,
• Peter Guttmann and
• Gerd Schneider

Beilstein J. Nanotechnol. 2025, 16, 1113–1128, doi:10.3762/bjnano.16.82

• approximate the zone plate as a lens. This is an excellent and widely used approximation [20][21][29] because it has been shown that zone plates with a sufficient number of zones (>200) yield diffraction-limited Airy disk patterns at each focus fm = f1/m [30][31]. Indeed, we have shown by numerical

• computation that the diffraction pattern produced by the zone plate used in this study (900 zones, with outermost zone width drn = 25 nm) quantitatively agrees with the expected Airy disk pattern for the lens with the equivalent NA [32]. 2.4 pc-Mie model equations Combining the preceding steps (2.1–2.3) for

Modeling a multiple-chain emeraldine gas sensor for NH₃ and NO₂ detection

• Hana Sustkova and
• Jan Voves

Beilstein J. Nanotechnol. 2022, 13, 721–729, doi:10.3762/bjnano.13.64

• good properties for NO2 detection. Keywords: ammonia; gas sensor; nitrogen dioxide; numerical computation; polyaniline; Introduction Polyaniline is a conducting polymer consisting of benzene rings connected by nitrogen units, which can be used in a wide spectrum of applications, for example, dyes for

Interplay between pairing and correlations in spin-polarized bound states

• Szczepan Głodzik,
• Aksel Kobiałka,
• Anna Gorczyca-Goraj,
• Andrzej Ptok,
• Grzegorz Górski,
• Maciej M. Maśka and
• Tadeusz Domański

Beilstein J. Nanotechnol. 2018, 9, 1370–1380, doi:10.3762/bjnano.9.129

• -of-plane spin–orbit field, respectively, and satisfy . Solving numerically the BdG equations (Equation 6) we can determine the local order parameter χi and occupancy niσ where f(ω) = [1 + exp(ω/kBT)]−1. In what follows, we shall inspect the spin-resolved local density of states For its numerical

• computation we replace the Dirac delta function with the Lorentzian function δ(ω) = ζ/[π(ω2 + ζ2)] with a small broadening ζ = 0.01 t. We have solved the BdG equations, considering a single magnetic impurity in a square lattice, comprising Na × Nb = 41 × 41 sites. We assumed U/t = −3, μ/t = 0, and determined