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Fractional Periodicity of Persistent Currents: A Signature of Broken Internal Symmetry by Deo, P. Singha; Koskinen, P.; Koskinen, M.; Manninen, M. is a scholarly article available to read on EtoBox.

What is Fractional Periodicity of Persistent Currents: A Signature of Broken Internal Symmetry about?

We show from the symmetries of the many body Hamiltonian, cast into the form of the Heisenberg (spin) Hamiltonian, that the fractional periodicities of persistent currents are due to the breakdown of internal symmetry and the spin Hamiltonian holds the explanation to this transition. Numerical diagonalizations are performed to show this explicitely. Persistent currents therefore, provide an easy way to experimentally verify broken internal symmetry in electronic systems.

Author

Deo, P. Singha; Koskinen, P.; Koskinen, M.; Manninen, M.

Published

2001

Language

EN