Hall effect characterization
The Micro and Nanotechnology Laboratory at the University of Oslo (UiO MiNaLab) is equipped with two Hall effect measurement setups, allowing for both room-temperature and temperature dependent measurements.
Hall effect measurements are employed to study the details of conduction in semiconductors and other materials. Such electronic properties include the sheet resistance, doping type/prevailing carrier type, carrier concentration, carrier mobility and the effect of a magnetic field.
- Lake Shore HMS 7604: Room-temperature and temperature dependent measurements.
- Lake Shore HMS 7704A: Room-temperature and temperature dependent measurements.
- Sample size:
- Lake Shore 7604: up to 60 x 60 mm2 (room temperature only), or up to 10 x 14 mm2 for variable temperature.
- Lake Shore HMS 7704A: up to 20 x 20 mm2.
- Temperature ranges:
- Lake Shore 7604: 20 – 350 K.
- Lake Shore HMS 7704A: 20 – 700 K.
- Magnetic fields:
- Lake Shore 7604: 1.3 / 1.0 T (room temperature/variable temperature).
- Lake Shore HMS 7704A: 1.0 T.
- Measurement range (for both instruments):
- Carrier concentration: 1 x 106 – 1 x 1019 cm-3.
- Carrier mobility: 1 – 1 x 105 cm2/Vs
- Sample mounting:
- Lake Shore 7604: Requires soldering of contacts.
- Lake Shore HMS 7704A: Requires soldering of contacts
Sample Preparation Equipment
- Roffin laser cutter, for substrate cutting.
- Ångström, Leybold and Baltzers PVD systems, for electrical contact deposition.
The Hall effect systems are available for rent with or without an operator.
|User Category||Price without operator/hour||Price with operator/hour|
|Academia||500 NOK||1250 NOK|
|Start-up||625 NOK||1725 NOK|
|Industry||750 NOK||1850 NOK|
Prices are in Norwegian kroner (NOK) excl. VAT. All prices are subject to change.
The reduced fees for start-up companies are available for the first 24 months after start-up. Training costs are currently covered by NorFab.