Singlet-Triplet Superconducting Quantum Magnetometer
arXiv:1308.3230 · doi: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 ultra-sensitive magnetometers.
5 pages, 3 figures. To Appear in Physical Review B
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- Long-Range Spin-Triplet Correlations and Edge Spin Currents in Diffusive Spin-Orbit Coupled SNS Hybrids with a Single Spin-Active Interface
- Josephson Currents and Spin Transfer Torques in Ballistic SFSFS Nanojunctions
- Spin Controlled Coexistence of 0 and π States in SFSFS Josephson Junctions
- Coexistence of superconductivity and spin-splitting fields in superconductor/ferromagnetic insulator bilayers of arbitrary thickness
- Evolution of Pair Correlation Symmetries and Supercurrent Reversal in Tilted Weyl Semimetals
- Normal metal tunnel junction-based superconducting quantum interference proximity transistor: the N-SQUIPT
- Spin Transport in Half-Metallic Ferromagnet-Superconductor Junctions
- Quasiparticle density of states and triplet correlations in superconductor/ferromagnetic-insulator structures across a sharp domain wall
- Static and dynamic properties of Josephson weak links with singlet and triplet coupling
- Gor'kov-Hedin-Baym Equations for Quantum Many-Body Systems with Spin-Dependent Interactions