Keithley-225 Current Source


Dana-651 Current Shunt Set


Switch
Box


HP-3465A
Digital Multinlete #603184


Figure B.l.


   I    Sample





Stratham Temperature Test Chamber #529950


Hel i -Tran LT-3-110 LN2 System #589876


Experimental Set-up. For Hall effect measurements the magnetic field was generated by a Varian Associates 6 in. Electromagnet System #544772. Capacitance measurements were taken with a Princeton Applied Research-410 C-V Plotter #601922 and a HP-7010A X-Y Recorder #602659.