Torque magnetometry in YBa2Cu3O7-δ single crystals using high sensitive micromechanical torsional oscillator
Abstract
We have developed a high-sensitive micro-torsional oscillators and fabricated with a standard silicon process, as a platform to study the low temperatures magnetic properties of micron sized samples. When the oscillator-sample system interacts with a magnetic field, the displacement of the oscillator from its equilibrium position can be detected as a small change in the capacitance (≈ 0.001 pF).
We use this device to study the magnetic response of a thick twinned YBa2Cu3O7-δ disk when the magnetic field is tilted away from the c axis in the temperature range 80 K < T < 100 K (Tc ≈ 92K).- Publication:
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Journal of Physics Conference Series
- Pub Date:
- December 2014
- DOI:
- 10.1088/1742-6596/568/2/022038
- Bibcode:
- 2014JPhCS.568b2038P