We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Mesoscopic superconducting analogs of the Aharo...
View graph of relations

« Back

Mesoscopic superconducting analogs of the Aharonov-Bohm-Casher Effect

Research output: Contribution to journalJournal article


<mark>Journal publication date</mark>1995
<mark>Journal</mark>Physical review letters
Number of pages4
<mark>Original language</mark>English


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.