Combined alternating gradient force magnetometer and susceptometer system

Area of Science:

• Physics
• Materials Science
• Instrumentation

Background:

• Magnetic characterization is crucial for understanding material properties.
• Existing systems like vibrating sample magnetometers and AGFMs have limitations in sensitivity and flexibility.
• There is a need for versatile instruments capable of measuring small sample volumes with high precision.

Purpose of the Study:

• To design and fabricate a novel magnetic characterization system.
• To integrate the functionalities of Alternating Gradient Force Magnetometers (AGFM) and susceptometers into a single platform.
• To achieve high sensitivity for measuring small quantities of materials.

Main Methods:

• Development of a new electronic system enabling dual functionality.
• Integration of AGFM and susceptometer capabilities without hardware modification.
• Characterization of the system's performance and sensitivity.

Main Results:

• The developed system successfully combines AGFM and susceptometer functionalities.
• The system demonstrates flexibility, allowing seamless switching between modes.
• Achieved a sensitivity limit below 5 × 10⁻⁷ emu.
• Enabled measurement of small material quantities not feasible with commercial systems.

Conclusions:

• The new system offers a versatile and highly sensitive platform for magnetic characterization.
• It overcomes limitations of conventional magnetometers for small sample analysis.
• This advancement facilitates detailed magnetic studies on reduced material quantities.