Biaxial Magnetic-Field Setup for Angular-Dependent Measurements of Magnetic Thin Films and Spintronic Nanodevices

The biaxial magnetic-field setup for angular-dependent measurements of magnetic thin films and spintronic nanodevices is designed and presented. The setup allows for the application of the in-plane magnetic field using a quadrupole electromagnet, controlled by power supply units and integrated with an electromagnet biaxial magnetic field sensor. The setup may be used in a wide range of experiments, where the application of precise in-plane magnetic field is needed. In our experiment, the probe station is equipped with a microwave circuitry, which enables angle-resolved spin-torque measurements. The angular dependences of magnetoresistance and spin diode effect in a multilayer patterned into μm-scale strips are shown as an operational verification of the experimental setup. We adapted an analytical macrospin model to reproduce both the resistance and spin-diode angular dependence measurements.