期刊
REVIEW OF SCIENTIFIC INSTRUMENTS
卷 87, 期 7, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4958036
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资金
- Singapore Ministry of Education (MOE), Academic Research Fund [MOE2014-T2-1-050]
- National Research Foundation (NRF) of Singapore, NRF [NRF-NRFI2015-04]
We present a rotary-stage microwave probe station suitable for magnetic films and spintronic devices. Two stages, one for field rotation from parallel to perpendicular to the sample plane (out-of-plane) and the other intended for field rotation within the sample plane (in-plane) have been designed. The sample probes and micro-positioners are rotated simultaneously with the stages, which allows the field orientation to cover theta from 0 degrees to 90 degrees and phi from 0 degrees to 360 degrees. theta and phi being the angle between the direction of current flow and field in a out-of-plane and an in-plane rotation, respectively. The operation frequency is up to 40 GHz and the magnetic field up to 1 T. The sample holder vision system and probe assembly are compactly designed for the probes to land on a wafer with diameter up to 3 cm. Using homemade multi-pin probes and commercially available high frequency probes, several applications including 4-probe DC measurements, the determination of domain wall velocity, and spin transfer torque ferromagnetic resonance are demonstrated. Published by AIP Publishing.
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