Z Li et al 2008 J. Phys.: Condens. Matter 20 235232 doi:10.1088/0953-8984/20/23/235232
Z Li, G Li, N L Wang and J L Luo
Show affiliationsThe resistivity and Hall resistivity of semimetallic antimony were measured from 2 to 300 K in magnetic fields up to 14 T. We found that in low field, the resistivity shows metallic behavior. In a modest field, the resistivity decreases to a minimum and then increases with decreasing temperature, showing a metal–insulator-like transition. In high field, the resistivity drops at low temperatures, showing an insulator–metal-like transition. The metal–insulator-like behavior can be explained by the competition of zero field resistivity and magneto-resistance, which is reciprocal to the zero field resistivity. The insulator–metal-like behavior can be explained by the imbalance of two carrier densities which changes the magneto-resistance from being reciprocal to proportional to the zero field resistivity.
72.60.+g Mixed conductivity and conductivity transitions
72.15.Gd Galvanomagnetic and other magnetotransport effects
71.30.+h Metal-insulator transitions and other electronic transitions
Issue 23 (11 June 2008)
Received 27 February 2008, in final form 14 April 2008
Published 9 May 2008
Z Li et al 2008 J. Phys.: Condens. Matter 20 235232
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