The Quantum Design MPMS 5XL SQUID Magnetometer with Evercool uses a superconducting quantum interference device (SQUID) detector to monitor very small changes in magnetic flux, and is extremely sensitive for all kinds of AC and DC magnetic measurements. The advantge of the Evercool Dewar is that users are not required to cart liquid He in for measurements; the Evercool recondensor ensures that once the Dewar is filled with liq. He, any evaporative loss is recondensed, with the help of an attached gas line. This makes the device very useful, and user friendly.

Applications of the SQUID magnetometer include the measurements of small quantities of paramagnetic ions, for the characterization of all kinds of magnetic materials, and for the quantitative determination of the number of unpaired electrons in samples.

Data can be collected between H = O to ± 50 kOe and T = 1.7 K to 400 K. The maximum sensitivity of the instrument is in the range of 10-9 emu.

See the Quantum Design web page at http://www.qdusa.com/products/index.html Please contact Professor Ram Seshadri for more information.