Torque magnetometry in YBa2Cu3O7-δ single crystals using high sensitive micromechanical torsional oscillator

27th International Conference on Low Temperature Physics

Perez-Morelo, D.^1 ; Pastoriza, H.^1

Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, CONICET, S. C. de Bariloche

R8402AGP, Argentina^1

关键词: Equilibrium positions;    Low temperatures;    Magnetic response;    Micro-mechanical;    Silicon process;    Temperature range;    Torque magnetometry;    Torsional oscillator;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/568/2/022038/pdf
DOI  :  10.1088/1742-6596/568/2/022038

来源: IOP

【 摘 要 】

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 c92K).