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Multipurpose setup for low-temperature conversion electron Mössbauer spectroscopy.

V Augustyns1, M Trekels1, H P Gunnlaugsson1

  • 1Instituut voor Kern- en Stralingsfysica, KU Leuven, 3001 Leuven, Belgium.

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|June 3, 2017
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Summary
This summary is machine-generated.

We developed a versatile low-temperature setup for conversion electron Mössbauer spectroscopy (CEMS). This system enables advanced material analysis and can be adapted for emission Mössbauer spectroscopy and magnetic field studies.

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Analytical Chemistry

Background:

  • Conversion Electron Mössbauer Spectroscopy (CEMS) is a surface-sensitive technique for material analysis.
  • Low-temperature measurements are crucial for understanding magnetic and electronic properties of materials.
  • Existing setups may have limitations in temperature range or experimental versatility.

Purpose of the Study:

  • To present a novel experimental setup for low-temperature CEMS.
  • To demonstrate the setup's capability and flexibility for advanced Mössbauer spectroscopy applications.
  • To highlight adaptations for emission Mössbauer spectroscopy and magnetic field measurements.

Main Methods:

  • Construction of a CEMS system featuring a continuous flow cryostat (4.2–500 K).
  • Integration of detector housing with channel electron multipliers and associated electronics.
  • Fabrication of exchangeable components (lid, sample holder) for expanded functionality.

Main Results:

  • Successful demonstration of the setup using CEMS on a 20 nm 57Fe film on a silicon substrate.
  • Validation of the low-temperature performance and measurement capabilities.
  • Confirmation of the adaptability for emission Mössbauer spectroscopy and measurements under applied magnetic fields.

Conclusions:

  • The described setup provides a robust and adaptable platform for low-temperature CEMS.
  • The modular design allows for extended applications, enhancing its utility in materials research.
  • This versatile system facilitates in-depth studies of material properties under various conditions.