Experimental investigation of anomalous magnetoresistance in monocrystalline lead sulphide
Investigation of galvanomagnetic effects was carried out in the temperature range of 1.5–350 K. The samples were made ofn- andp-type PhS, cut off in different orientations and rotated in the magnetic field.
The reproductibility of the measurement and the stability of the temperature was better than 0.1%.
The results show in the entire temperature range that the magnetoresistance contrary to accepted assumptions cannot be expressed in terms of only even powers of the magnetic field strength and a negative change appears as well.
Calculating the electron effective mass more precisely considering the electron motion in thek-space the experimental results could be explained in a simple way in the whole temperature range.
KeywordsMagnetic Field Strength Hall Mobility Entire Temperature Range Hall Coefficient Lead Sulphide
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