DC Electrical Conductivity in DC Fields

Probes are wired with both twisted pairs and low-loss co-axial cables to suit the needs of the user. Instruments are available with high input / output impedance to allow for measurement of high resistance samples. For example, a Keithley 6221 current source can be coupled to a high sensitivity voltmeter for accurate measurements of sample resistance into the MΩ range. Samples can be easily mounted to rotation probes for measurements of angular dependence with respect the applied field.

Images & Sample Data

Click on images to view a larger version, to download or to view more details.

• Photo of a HgTe sample. Photo of a HgTe sample.
• Evolution of the coincidence features in ρxx(B⊥,B parallel); Click on image for details. Evolution of the coincidence features in ρxx(B⊥,B parallel); Click on image for details.
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Instrumentation

Related Publications

A. Suslov et al., Observation of subkelvin superconductivity in Cd₃As₂ thin films, Physical Review B, 99, 094512 (2019) Read online 

A. Simons, et al., Components of strong magnetoresistance in Mn implanted Ge, Journal of Applied Physics 115 (2014) Read online 

M. V. Yakunin, et al., Effects of spin polarization in the HgTe quantum well, Physical Review B 85 (2012) Read online 

A. V. Suslov, et al., Stand alone experimental setup for dc transport measurements, Review of Scientific Instruments 81 (2010) Read online 

Staff Contacts

For more information, please contact:

• Luis Balicas
• Eun Sang Choi
• David Graf
• Scott Hannahs
• Jan Jaroszynski
• Alexey Suslov