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An elementary calculation shows that Landau diamagnetism becomessignificantly altered and very large paramagnetic effects emerge at lowtemperature in nanoscale 2DEG strips penetrated by a perpendicular appliedmagnetic field and bounded by a parabolic potential, such as may arise fromnegative voltage applied to a split gate. These novel results are described byan expression which manifests the total system magnetization as a differencebetween evolved orbital paramagnetism and altered diamagnetism. These predictedeffects correspond to drift motion of electrons parallel to the strip lengtharising from Landau eigenstates that are non-degenerate in the combinedpresence of a perpendicular applied magnetic field and electric fieldsassociated with a confining parabolic potential. A new heterostructuredmagnetic material based on orbital electronic motion in 2DEG strips isproposed.

Possible Giant Orbital Paramagnetism in Nanometer Scale 2DEG Strips