Skip to content
DraconiticResearch
Search Sources API
201,642 studies31 sourcesUpdated 11 min ago
PreprintCC BY-NC-ND 4.0arXiv

Design of Nuclear and Magnetic Scattering Length Density Profiles

  • Alexandros Barnasas
  • Edward J. Stuckey
  • Alexei A. Vorobiev
  • Joashaniel F. K. Cooper
  • Sjoerd Stendahl
  • Björgvin Hjörvarsson
Open at sourcePDFDOICite

Abstract

The scattering length density (SLD) profile of a sample can be deliberately designed to enhance the information of interest obtained from neutron reflectometry. Here, we demonstrate this approach using amorphous FexCoyAl8Zr2 thin films. Four samples, each comprising ten repetitions of an AlZr spacer layer and a magnetic layer, were prepared with magnetic-layer compositions of Fe80Co10Al8Zr2, Fe70Co20Al8Zr2, Fe60Co30Al8Zr2, and Fe45Co45Al8Zr2, and characterised using X-ray and polarised neutron reflectometry. Across the series, the nuclear SLD of the FeCoAlZr alloy decreases approximately linearly from 7.14 × 10−6 to 4.63 × 10−6 mathringA−2 with increasing Co content, while the magnetic SLD is approximately $4.3−4.5 \times 10^{-6}$ mathringA−2. These results demonstrate that the nuclear and magnetic contributions can be controlled largely independently, with composition primarily tuning the nuclear SLD and the applied magnetic field offering, in principle, additional control of the magnetic contribution.

Related

  1. Short-range correlated pairs from nucleon density profiles as a new probe of the nuclear equation of state
    L. Ponnath, N. Barnea, I. Korover +6
    arXivPreprintCC BY 4.0Full textNuclear physicsarXiv
  2. Elastic deuteron-deuteron scattering in the 5S2 channel within nuclear lattice effective field theory
    Helen Meyer, Serdar Elhatisari, Fabian Hildenbrand +1
    Physics Letters BPeer-reviewedCC BY 4.0Full textNuclear physicsCrossref
  3. Nuclear Deep Inelastic Scattering around x=0.3
    S. A. Kulagin, R. Petti
    arXivPreprintCC BY 4.0Full textHigh-energy & particle physicsNuclear physicsarXiv
  4. Quantum Complexity in Nuclear Scattering and Fission Dynamics
    Saurabh V. Kadam, Antonio Bjelčić, Nicolas Schunck +1
    arXivPreprintarXiv licenceFull textNuclear physicsQuantum physics & quantum informationarXiv
  5. Elastic deuteron-deuteron scattering in the 5S2 channel within Nuclear Lattice Effective Field Theory
    Helen Meyer, Serdar Elhatisari, Fabian Hildenbrand +1
    arXivPreprintCC BY 4.0Full textHigh-energy & particle physicsNuclear physicsarXiv

Cite

BibTeXRIS
BibTeX
@misc{barnasas2026design,
  title = {{Design of Nuclear and Magnetic Scattering Length Density Profiles}},
  author = {Alexandros Barnasas and Edward J. Stuckey and Alexei A. Vorobiev and Joashaniel F. K. Cooper and Sjoerd Stendahl and Björgvin Hjörvarsson},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2610.30416},
  eprint = {2610.30416},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2610.30416},
  note = {CC BY-NC-ND 4.0},
}
RIS
TY  - UNPB
TI  - Design of Nuclear and Magnetic Scattering Length Density Profiles
AU  - Alexandros Barnasas
AU  - Edward J. Stuckey
AU  - Alexei A. Vorobiev
AU  - Joashaniel F. K. Cooper
AU  - Sjoerd Stendahl
AU  - Björgvin Hjörvarsson
PY  - 2026
DA  - 2026/10/21
PB  - arXiv
DO  - 10.48550/arxiv.2610.30416
UR  - https://arxiv.org/abs/2610.30416
AB  - The scattering length density (SLD) profile of a sample can be deliberately designed to enhance the information of interest obtained from neutron reflectometry. Here, we demonstrate this approach using amorphous Fe_xCo_yAl_8Zr_2 thin films. Four samples, each comprising ten repetitions of an AlZr spacer layer and a magnetic layer, were prepared with magnetic-layer compositions of Fe_80Co_10Al_8Zr_2, Fe_70Co_20Al_8Zr_2, Fe_60Co_30Al_8Zr_2, and Fe_45Co_45Al_8Zr_2, and characterised using X-ray and polarised neutron reflectometry. Across the series, the nuclear SLD of the FeCoAlZr alloy decreases approximately linearly from 7.14 × 10^−6 to 4.63 × 10^−6 mathringA^−2 with increasing Co content, while the magnetic SLD is approximately $4.3−4.5 \times 10^{-6}$ mathringA^−2. These results demonstrate that the nuclear and magnetic contributions can be controlled largely independently, with composition primarily tuning the nuclear SLD and the applied magnetic field offering, in principle, additional control of the magnetic contribution.
ER  -