Measurements at variable temperature, from few K to well above room temperature, are fundamental for advanced material and device characterization, in particular when the transport of charge and/or spin are involved. The closed circuit He cryostat available in the Nanomagnetism laboratory operates from 10 K to 450 K and is equipped with an anti-vibration system allowing for reducing the sample vibrations below 1 µm. This feature, together with an optical access to sample through a window, allows for magneto-optical measurements during sample heating or cooling. Wiring (8 wires) for low noise electrical experiments is also available, allowing for transport and magneto-electric characterization at variable temperature.
The closed circuit He cryostat (Displex CS-202NE from ARS) operates in the temperature range 10 K-450 K and is equipped with DMX-20 low vibration interface, allowing for reducing the vibrations in the sample position down to less than 1m (in the best conditions less than 10 nm). Optical access to sample is provided by a transparent window, and electrical access is provided by wiring (8 wires) for low noise electrical experiments. Magnetic field can be applied by external sources (Helmotz coils, electromagnets and/or permanent magnets), with a maximum field of about 0.5 T in the sample center.
- Samples dimension: maximum size of about 10×10 mm2
- Temperature range: 10 K-450 K
- Optical access to the sample
- Sample vibrations: less then 10 µm
- Maximum external magnetic field: 0.5 T