Microwave magnetism platform
- C2N’s microwave magnetism measurement platform includes several probe stations with on-chip calibration capacity and variable magnetic ﬁeld sources:
- Multipurpose probe stations: 3D orientable field of 280 mT in plane or 700 mT out-of plane field with up to 6 RF probes (4×40 GHz & 2×67 GHz) and up to 4 DC probes.
- Cryogenic (5–450 K) probe station with 4×40 GHz probes, 2D vector in-plane ﬁeld up to 115 mT and 30 mT out-of-plane field.
- High ﬁeld (2.5 T) probe station with 70 GHz capability.
Our microwave magnetism measurement platform is equipped with state of the art instruments including a vector network analyser (70 GHz), a spectrum analyser (50 GHz), with the dedicated low noise preampliﬁers, a single-shot oscilloscope with 6 GHz of true analogue bandwidth and with a 40 GHz trigger prescaler, and an equivalent-time-domain oscilloscope with 67 GHz true analogue bandwidth.
- Kerr microscopy
Perpendicular magneto-optic Kerr effect (MOKE) microscope with
- 500 nm resolution at room temperature
- Perpendicular fields up to 600 mT
- In-plane fields up to 35 mT
- Two picoprobe contacts up to 70 GHz
· Our deposition cluster is a research tool optimized for the deposition of metals and oxides thin ﬁlms at low deposition rates, under a base vacuum of 10-8 mbar and a typical argon working pressure of 5×10-4 mbar in magnetron mode. It is equipped with 8 sputtering cathodes and more than 30 available targets, and each cathode can be powered in DC or RF mode. The sampler holder incorporates permanent magnets for in-ﬁeld deposition, and it can be heated up to 400°C. Our sputtering machine can accept 8 inch wafers, although the uniformity of the deposition is ensured only over 2 inches. The cluster connects the sputtering system to a Chemically Assisted Ion Beam Etching tool and an UHV Pulsed Laser Deposition system, optimized for the deposition of piezoelectric materials.
The group possesses a small computation cluster for micromagnetics simulations (mumax2, mumax3, OOMMF) and finite-element electromagnetics simulations (COMSOL).
Graphics processing units (GPUs) for high-performance computing:
- 3 × NVIDIA GTX 980
- 3 × NVIDIA GTX 680
- 2 × NVIDIA Quadro 4000
- Access to 4 × NVIDIA Tesla K20X