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The magnetic response of electrons in a zigzag carbon nanotube (CN) threaded by an Aharonov Bohm flux φ is carefully analyzed by using a Hartree Fock approximation. The ground state energy as a function of the magnetic field, B, and the electron–electron repulsion strength, U, are obtained for Ne interacting electrons confined in short (∼100 nm) and long (∼1 μm) CNs. The spin and orbital magnetization...
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