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Related Experiment Video

Updated: Jul 2, 2026

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

Microwave cavity for EPR at high hydrostatic pressures.

P Cevc1, R Srinivasan

  • 1J. Stefan Institute, University of Ljubljana, Ljubljana, Yugoslavia.

The Review of Scientific Instruments
|September 1, 1978
PubMed
Summary

A novel pressure-locked cavity enables X-band Electron Paramagnetic Resonance (EPR) studies under high hydrostatic pressures and low temperatures. This design simplifies experiments by avoiding sapphire components.

Area of Science:

  • Physics
  • Chemistry
  • Materials Science

Background:

  • Electron Paramagnetic Resonance (EPR) spectroscopy is a powerful technique for studying materials with unpaired electrons.
  • High-pressure and variable-temperature studies are crucial for understanding material properties and phase transitions.
  • Existing EPR cavity designs can be complex and limited in their operating conditions.

Purpose of the Study:

  • To describe the design of a simple, pressure-locked cavity for X-band EPR.
  • To enable EPR measurements at high hydrostatic pressures and temperatures down to liquid nitrogen.
  • To present a coaxial coupling arrangement that avoids the use of sapphire.

Main Methods:

  • Design and construction of a pressure-locked cavity.
  • Integration of a coaxial coupling mechanism.

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Last Updated: Jul 2, 2026

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions
08:42

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

Published on: October 10, 2014

Synthesis and Microdiffraction at Extreme Pressures and Temperatures
07:26

Synthesis and Microdiffraction at Extreme Pressures and Temperatures

Published on: October 7, 2013

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08:55

High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy

Published on: October 9, 2020

  • Testing of the cavity under high hydrostatic pressure and low temperatures (down to liquid nitrogen).

    • Main Results:

    • A functional pressure-locked cavity for X-band EPR was successfully designed and implemented.
    • The coaxial coupling arrangement proved effective, eliminating the need for sapphire components.
    • The cavity demonstrated reliable performance under specified high-pressure and low-temperature conditions.

    Conclusions:

    • The developed cavity offers a simplified and robust solution for high-pressure, low-temperature EPR studies.
    • This design facilitates advanced research in condensed matter physics and chemistry.
    • The avoidance of sapphire enhances the practicality and potential applications of the cavity.