Versatile variable temperature insert at the DEIMOS beamline for in situ electrical transport measurements

Area of Science:

• Materials Science
• Condensed Matter Physics
• Spectroscopy

Background:

• Novel materials like multiferroics exhibit intertwined magnetic and electrical properties.
• Probing these properties requires advanced characterization techniques.
• Existing methods may not allow for in situ investigation of these complex interactions.

Purpose of the Study:

• To design and test a versatile cryogenic insert for electrical transport measurements.
• To enable in situ X-ray absorption spectroscopy (XAS) studies of materials under cryogenic conditions.
• To investigate the interplay between magnetic and electrical orders in novel materials and operating devices.

Main Methods:

• Development of a specialized cryogenic insert with electrical transport capabilities.
• Integration of the insert into a cryomagnet system on the DEIMOS beamline at SOLEIL synchrotron.
• Utilizing X-ray absorption spectroscopy (XAS) for magnetic characterization.
• Implementation of redundant wiring and shielding for device studies.

Main Results:

• Successful design and initial experiments with the versatile cryogenic insert.
• Demonstration of in situ XAS measurements probing the interplay of magnetic and electrical orders.
• Validation of the equipment's capability for studying operating electronic devices, such as magnetic tunnel junctions.

Conclusions:

• The developed cryogenic insert is a versatile tool for advanced materials research.
• It enables in situ investigation of complex phenomena using XAS.
• The equipment facilitates the study of novel materials and the operando characterization of electronic devices.