Our FErroelectric/DiElectric laboratory is specially designed to characterize all kind of functional properties of ferroelectric and multiferroic thin films
Capacitance and loss tangent measurements as a function of frequency (between 5Hz and 13 MHz) and voltage up to 35 V, look in D. Gutiérrez, et al.,. Physical Review B 86, 125309 (2012).
Photoelectric characterization with a set of lasers (1500 mW/cm2) with different wavelengths (405 – 638 nm), look in F. Liu, et al., Advanced Electronic Materials 1, 1500171.
Electroresistance characterization using using as fast as 100 us electrical pulses, look in M.Qian et al., Small 15, 1805042 (2019).
All these characterizations can be implemented in three experimental setups, to perform respectively room temperature, high and low temperature, or cryogenic magnetoelectric measurements:
Room temperature measurements: a table with micropositioners (Signatone S-2 and S-725) and tungsten needles of several diameters and hardnesses is used. A Faraday box is available to shield environmental noise when required.
Low and high-temperature probe station: a 4-probes station able to reach from down to 5 K to ca. 1000 K with access to laser illumination.
Cryogenic measurements (T>1.6K): they are performed inside a Physical Property Measurement System Quantum Design Co.) with a Multifunction probe suitably adapted (shielded cables with low thermal losses: Cryo cable – type SS, Lakeshore Co.). This system contains a superconducting magnet which allows to carry out all the electric measurements under magnetic fields up to 9T, thus allowing magnetoelectric characterization under high magnetic field.
You can have access to this facility through the nffa.eu project