This unit (S700X from Cryogenic Ltd) is one of the most sensitive instruments for DC and AC measurements of magnetic properties as a function of magnetic field and temperature, with a resolution down to 10-8 emu.
The S700X comprises a standard variable temperature insert operating in the range 1.5-400 K inside a 7 T magnet. The temperature range of operation can be extended down to 0.3 K with a 3He insert. In addition to static magnetization, the AC magnetic susceptibility can be measured from 0.01 to 500 Hz.
The presence of a secondary pick-up coil in the main magnet assembly allows the simultaneous measurement of both axial and transverse components of the magnetization. This transverse axis facility and a motor to rotate the sample, in steps of 0.1 degree, enable the determination of sample anisotropic effects.
This equipment is mainly dedicated to study samples with relatively low moments such as molecular materials, small single crystals and films.
Equipment financed by
Managing Authority and Funding
FCT – Fundação para a Ciência e a Tecnologia
Plano Nacional de Re-equipamento Científico
Project Reference: REEQ/322/QUI/2005
Responsible Researcher:
Laura Pereira
Access to the equipment: This equipment is available to the scientific community, aiming the cooperation and
co-authorship in research works to be further published in international scientific magazines and/or presented in Conferences.