Jessaly Zhu
Pronouns:
Research Mentor(s): Lu Li
Research Mentor School/College/Department: Physics / LSA
Program: UROP
Session: Session 4 (1:40pm – 2:30pm)
Authors:
Abstract
Sensitive magnetometry in extreme conditions is important in the development of solid-state quantum materials. One of the extreme conditions is the most powerful controlled magnet located at Los Alamos National Laboratory, which produces a field about 100 times stronger than that used by Magnetic Resonance Images. To resolve the magnetic response of materials in this condition, a rapid resonance magnetometer is needed as the magnet pulses within a millisecond. A MHz current-voltage amplifier converts the resonance current to voltage data. For this device, an early effort to design a printed circuit board (PCB) was made. However, upon building and testing the PCB, the data produced too much noise to determine the resonant frequency of the oscillator. The flaw in the design is still unknown. The next step is to redesign and test the MHz I-V amplifier. If successful, a sample will be mounted to the oscillator to detect its torque differential. If unsuccessful, the team will use a broadband transformer-based amplifier.
