An-Najah Staff

angular dependence of the magnetoesistivity tensor components have been measured in single crysals of bismuth at nitrogen tempeartuer 

the umkeherffect in the tensor comonent p32(B1) is measured .

  The components of the electron and hole mobility tensors , the carrire density and the titl angle of the fermi surface pockets 

have been computed from the experimental results , by a minimization procedure ,

on the basis of a multi-valley ellipsoidal fermi surface model>