Leadbeater, M and Lambert, Colin (1995) Mesoscopic superconducting analogs of the Aharonov-Bohm-Casher Effect. Physical review letters, 74 (22). pp. 4519-4522. ISSN 0031-9007Full text not available from this repository.
We predict a new quantum interference effect for phase coherent loops containing a superconducting arm, in which the energy gap (superconducting phase gradient) plays the role of a scalar (vector) potential. By solving the Bogoliubov–de Gennes equation for small loops in one and two dimensions, it is demonstrated that if either the magnitude or the phase gradient of the superconducting order parameter is increased monotonically, the differential conductance oscillates. The frequency of oscillation is a factor of two lower than that of Tomasch oscillations and therefore defines a first harmonic for quasi-particle interference phenomena in mesoscopic superconductors.
|Journal or Publication Title:||Physical review letters|
|Subjects:||Q Science > QC Physics|
|Departments:||Faculty of Science and Technology > Physics|
|Deposited On:||25 Oct 2012 14:44|
|Last Modified:||03 Nov 2015 16:29|
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