Volume 126, Number 5, June 2019
|Number of page(s)||7|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||04 July 2019|
Quantized Josephson phase battery
School of Physical Sciences, National Institute of Science Education & Research, HBNI - Jatni-752050, India
Received: 14 March 2019
Accepted: 31 May 2019
A ferromagnetic Josephson junction with a spin-flipper (magnetic impurity) sandwiched in-between acts as a phase battery that can store quantized amounts of superconducting phase difference in the ground state of the junction. Moreover, for such -Josephson junction, anomalous Josephson current appears at zero phase difference. We study the properties of this quantum spin-flip scattering-induced anomalous Josephson current, especially its tunability via misorientation angle between two ferromagnets.
PACS: 74.50.+r – Tunneling phenomena; Josephson effects / 85.25.Cp – Josephson devices / 74.45.+c – Proximity effects; Andreev reflection; SN and SNS junctions
© EPLA, 2019
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