Biaxial magnetic field setup for angular magnetic measurements of thin films and spintronic nanodevices

TL;DR

This paper presents a biaxial magnetic-field setup for precise angular measurements of thin films and spintronic devices, integrating magnetic field control, microwave circuitry, and analytical modeling for comprehensive characterization.

Contribution

The paper introduces a novel biaxial magnetic-field setup with integrated microwave circuitry and analytical modeling for detailed angular magnetic measurements of thin films and spintronic devices.

Findings

Successful measurement of magnetoresistance and spin diode effects.

Verification of setup through macrospin model simulations.

Operational demonstration with giant magnetoresistance strip.

Abstract

The biaxial magnetic-field setup for angular magnetic measurements of thin film and spintronic devices is designed and presented. The setup allows for 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. In addition, the probe station is equipped with a microwave circuitry, which enables angle-resolved spin torque oscillation measurements. The angular dependencies of magnetoresistance and spin diode effect in a giant magnetoresistance strip 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 dependency measurements.