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Singlet-triplet superconducting quantum magnetometer

Alidoust, Mohammad; Halterman, K; Linder, Jacob
Journal article
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URI
http://hdl.handle.net/11250/2465136
Date
2013
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  • Publikasjoner fra CRIStin - NTNU [41955]
Original version
Physical Review B. Condensed Matter and Materials Physics. 2013, 88 (7), .   10.1103/PhysRevB.88.075435
Abstract
Motivated by the recent experimental realization of a quantum interference transistor based on the superconducting proximity effect, we here demonstrate that the inclusion of a textured ferromagnet both strongly enhances the flux sensitivity of such a device and additionally allows for singlet-triplet switching by tuning a bias voltage. This functionality makes explicit use of the induced spin-triplet correlations due to the magnetic texture. Whereas the existence of such triplet correlations is well known, our finding demonstrates how spin-triplet superconductivity may be utilized for concrete technology, namely, to improve the functionality of ultrasensitive magnetometers.
Publisher
American Physical Society
Journal
Physical Review B. Condensed Matter and Materials Physics

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