Singlet-triplet superconducting quantum magnetometer
Journal article
Submitted version
Permanent lenke
http://hdl.handle.net/11250/2465136Utgivelsesdato
2013Metadata
Vis full innførselSamlinger
- Institutt for fysikk [2652]
- Publikasjoner fra CRIStin - NTNU [37214]
Originalversjon
Physical Review B. Condensed Matter and Materials Physics. 2013, 88 (7), . 10.1103/PhysRevB.88.075435Sammendrag
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.