Levitation and lateral forces between a point magnetic dipole and a superconducting sphere
Al-Khateeb H M1, †, , Alqadi M K1, Alzoubi F Y1, Albiss B1, Hasan (Qaseer) M K1, Ayoub N Y2
       

Schematic diagram of the magnet/superconductor system. The small magnet has a permanent magnetic moment μ at polar angle θ and azimuthal angle ϕ (not shown in the figure). The magnet is placed a distance h vertically above the center of the superconducting sphere of radius R and moved laterally a distance η along the x axis.