Evaluation protocol for revealing magnonic contrast in TR-STXM measurements

B. Zingsem, T. Feggeler, R. Meckenstock, D. Spoddig, Taddäus Schaffers, Santa Pile, Hendrik Ohldag, M. Farle, H. Wende, Andreas Ney, K. Ollefs

Research output: Contribution to journalArticlepeer-review

Abstract

We present a statistically motivated method to extract magnonic contrast from time-resolved scanning transmission x-ray microscopy (TR-STXM) measurements. TR-STXM is an element-specific method for resolving spin-dynamics in space and time. It offers nanometer spatial resolution and picosecond temporal resolution. The presented method makes it possible to obtain phase and amplitude profiles of spin-waves from STXM measurements. Furthermore, it allows for a rigorous transformation to reciprocal magnon k⃗-space, revealing k⃗-dependent magnon properties such as the magnon dispersion in three dimensions and for all directions of the magnetic anisotropy. We demonstrate our method using X-band ferromagnetic resonance on a micrometer-sized permalloy assembly.
Original languageEnglish
Article number045020
Pages (from-to)045020/1-7
Number of pages7
JournalAIP Advances
Volume13
DOIs
Publication statusPublished - 2023

Fields of science

  • 210006 Nanotechnology
  • 103 Physics, Astronomy
  • 103011 Semiconductor physics
  • 103018 Materials physics
  • 103009 Solid state physics
  • 103017 Magnetism

JKU Focus areas

  • Sustainable Development: Responsible Technologies and Management

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