MMR's Variable Temperature Hall System (VTHS) allows the user to make automatic measurements of resistivity, mobility and carrier concentration of a wide range of samples using the Van der Pauw method over a temperature range from 70K to 730K. Sample mounting is simple and allows rapid interchange of samples. The VTHS Hall Measurement Controller, the H-50, is compatible with a variety of computers through an IEEE-488 (GPIA) or RS-232 interface. MMR's Benchtop Electromagnet and Programmable Power Supplycomplement the VTHS.

• Operating Temperature: 70 K to 730 K
• Guarded Triax Leads
• H-50 interfaces with MMR's Low Temperature Dewar
• H-50 interfaces with MMR's Programmable Temperature Controller
• H-50 interfaces with two different MMR electromagnets, allowing maximum flexibility in sample analysis.
• Hall magnetometer in Dewar included in system
• Full software provided for all measurements
• Power Input: 110 V, 60 Hz and 220 V, 50 Hz
• H-50 Weight: 12 lb
• H-50 Dimensions: 3.5" x 17" x 14"