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pro vyhledávání: '"Wolf, M. J."'
We present a combined experimental and theoretical work that investigates the magnetic proximity effect at a ferromagnetic-insulator - superconductor (FI-S) interface. The simulation is based on the boundary condition for diffusive quasiclassical Gre
Externí odkaz:
http://arxiv.org/abs/2203.09951
Akademický článek
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Autor:
Wolf, M. J.
This thesis presents Density Functional Theory (DFT) modelling results for the V- centre in MgO, and self-trapped holes in the bulk and at the surface of monoclinic (m-)ZrO2. These systems exhibit polaronic self-trapping of a hole, a situation with w
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.626110
Publikováno v:
Phys. Rev. Lett. 116, 097001 (2016)
We report on the experimental observation of thermoelectric currents in superconductor-ferromagnet tunnel junctions in high magnetic fields. The thermoelectric signals are due to a spin-dependent lifting of particle-hole symmetry, and are found to be
Externí odkaz:
http://arxiv.org/abs/1509.05568
Publikováno v:
Phys. Rev. B 90, 144509 (2014)
We report on nonlocal spin transport in mesoscopic superconducting aluminum wires in contact with the ferromagnetic insulator europium sulfide. We find spin injection and long-range spin transport in the regime of the exchange splitting induced by eu
Externí odkaz:
http://arxiv.org/abs/1408.0176
Autor:
Shcherbakova, A. V., Fedorov, K. G., Shulga, K. V., Ryazanov, V. V., Bolginov, V. V., Oboznov, V. A, Egorov, S. V., Shkolnikov, V. O., Wolf, M. J., Beckmann, D., Ustinov, A. V.
We describe fabrication and testing of composite flux qubits combining Nb- and Al-based superconducting circuit technology. This hybrid approach to making qubits allows for employing pi-phase shifters fabricated using well-established Nb-based techno
Externí odkaz:
http://arxiv.org/abs/1405.0373
Autor:
Golikova, T. E., Wolf, M. J., Beckmann, D., Batov, I. E., Bobkova, I. V., Bobkov, A. M., Ryazanov, V. V.
Publikováno v:
Phys. Rev. B 89, 104507 (2014)
Nonlocal supercurrent was observed in mesoscopic planar SNS Josephson junction with additional normal metal electrodes when nonequilibrium quasiparticles were injected from the normal metal electrode in one of the superconducting banks of the Josephs
Externí odkaz:
http://arxiv.org/abs/1312.7246
Publikováno v:
Beilstein J. Nanotechnol. 5, 180 (2014)
Nonequilibrium charge transport in superconductors has been investigated intensely in the 1970s and 80s, mostly in the vicinity of the critical temperature. Much less attention has been focussed on low temperatures, and the role of the quasiparticle
Externí odkaz:
http://arxiv.org/abs/1312.1532
Publikováno v:
Phys. Rev. B 88, 174509 (2013)
We report on an experimental and theoretical study of nonlocal transport in superconductor hybrid structures, where two normal-metal leads are attached to a central superconducting wire. As a function of voltage bias applied to both normal-metal elec
Externí odkaz:
http://arxiv.org/abs/1308.5823
Autor:
Fritsch, V., Bagrets, N., Goll, G., Kittler, W., Wolf, M. J., Grube, K., Huang, C. -L., Löhneysen, H. v.
Publikováno v:
Phys. Rev. B 89, 054416 (2014)
Quantum phase transitions have captured the interest of a large community in condensed-matter and atom physics research. The common feature of these very different material classes lies in the fact that the competition between low-energy scales can b
Externí odkaz:
http://arxiv.org/abs/1301.6062