December 12, 2018 UMD Home FabLab AIMLab
Back to Equipment List Hall Effect Measurement System
Description Users must consult with John Abrahams (5-6664) before using this tool. Correct sample mounting is critical! The HMS-5000 Hall Effect Measurement System can be used to characterize various materials including all semiconductors such as Si, SiGe, SiC, GaAs, InGaAs, InP, GaN (N& P Type) can be measured as well as metal films and dielectrics. It is fully is automated so that without user intervention, it will ramp to each user defined temperature, stabilize, make the measurement (including moving the magnet automatically), and then plot a variety of temperature-dependent material properties such as concentration versus temperature, mobility versus temperature, resistivity versus temperature, conductivity versus temperature, and Hall coefficient versus temperature. The system provides the test results as tabular data as well as in graphic form. The Once the user defines the desired temperature steps within the range of 80K to 350K and fills the two LN2 reservoirs, this system automatically applies and switches the input current, measures the voltages, changes temperature, and moves the magnets all without user intervention. Once the test is finished, all of the temperature-dependent graphs and tabular data are ready for viewing. Two reference samples are used to maintain calibration The operating manual and instructions are loaded on the PC that runs the software.
Location FabLab | Exploratory Lab
Manufacturer Ecopia Corp HMS-5000
Staff Contact JohnJohn Abrahams
jabrah@umd.edu
301-405-6664
Rates
UMD
$0/hr
External Non-profit / University
$0/hr
Small Commercial / MTECH
$0/hr
Large Commercial
$0/hr
Reservations No upcoming reservations at this time.
Logs
Tue, Dec 04, 2018
1:45 pm - 2:15 pm
Aayush Thapa
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Thu, Nov 08, 2018
9:00 am - 12:00 pm
John Abrahams
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Modification installation
Wed, Oct 24, 2018
12:30 pm - 1:30 pm
John Abrahams
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Training Matt Yung. Not charging for training due to equipment malfunction.
Thu, Oct 18, 2018
1:30 pm - 2:45 pm
Aayush Thapa
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Fri, Oct 05, 2018
11:00 am - 1:00 pm
Aayush Thapa
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Colleges A. James Clark School of Engineering
The College of Computer, Mathematical, and Natural Sciences

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