Introduction to the NHMFL Pulsed Field Facility at LANL

Information on the physical set-up of pulsed field measurements

Read about lock-in amplifiers and their role in your measurements

Information about noise and ways to eliminate it from your measurements

How to collect and evaluate your measurement data

Information on optical spectroscopy

Information about time-resolved optics

Information on de Haas van Alphen Effect measurements

Information on Shubinkov de Haas Effect measurements

Information on Absolute Resistivity measurements

Information on Heat Capacity measurements

Information on RF Penetration Depth measurements

RF Penetration Depth


 

Associated Scientist: Chuck Mielke <cmielke@lanl.gov> or (505) 665-1500

We use rf techniques in high magnetic field to measure the penetration depth as a function of magnetic field and temperature in superconducting compounds. This techniques gives you the "change in penetration depth". The change in penetration depth as a function of magnetic field is known as the Campbell penetration depth. As the superconductivity is suppressed by the magnetic field the penetration depth goes to infinity and the measurement is actually sensing the conductivity.