INHOMOGENEITY AND LOCAL NEGATIVE MAGNETORESISTANCE OF ALUMINUM

The peculiarities of potential distribution and current flow in alumin um plate conductors are investigated under an inhomogeneous action of transverse magnetic field. A magnetic held inhomogeneity is arranged a long a transport direction with a method of curving of electric curren t lines. For relative magnetic field gradient of about 0.3 cm(-1) a po tential dependence on transport direction is complicated and an invers ion of spatial dependence of potential takes place. That is an increas e of potential along total current vector is observed on one of conduc tor side as a magnetic held decreases a local resistance.