Zobrazeno 1 - 10
of 1 576
pro vyhledávání: '"Henning G"'
We show strong coupling between antiferromagnetic magnons and microwave cavity photons at both high and externally controllable magnon frequencies. Using the fully quantum mechanical path-integral method, we study an antiferromagnetic insulator (AFM)
Externí odkaz:
http://arxiv.org/abs/2410.14780
The geometrical properties of a helical ferromagnet are shown theoretically to control the critical temperature of a proximity-coupled superconductor. Using the Usadel equation for diffusive spin transport, we provide self-consistent analysis of how
Externí odkaz:
http://arxiv.org/abs/2404.05798
Publikováno v:
Phys. Rev. B 110, L161102 (2024)
We study the effect of ferromagnetic metals (FM) on the circularly polarized modes of an electromagnetic cavity and show that broken time-reversal symmetry leads to a dichroic response of the cavity modes. With one spin-split band, the Zeeman couplin
Externí odkaz:
http://arxiv.org/abs/2401.01929
Autor:
Skarpeid, Alv Johan, Hugdal, Henning G., Salamone, Tancredi, Amundsen, Morten, Jacobsen, Sol H.
Publikováno v:
J. Phys.: Condens. Matter 36 235302 (2024)
We show that tailoring the geometric curvature profile of magnets can be used for bespoke design of an effective non-relativistic spin-orbit coupling, which may be used to control proximity effects if the magnet is coupled to a superconductor. We con
Externí odkaz:
http://arxiv.org/abs/2312.06774
We propose that geometric curvature and torsion may be used to probe the quality of an uncompensated antiferromagnetic interface, using the proximity effect. We study a helix of antiferromagnetic wire coupled to a conventional superconductor, and sho
Externí odkaz:
http://arxiv.org/abs/2311.12116
Publikováno v:
A. T. G. Janss{\o}nn, H. G. Hugdal, A. Brataas, S. H. Jacobsen, Phys. Rev. B 107, 035147 (2023)
A recent proof of concept showed that cavity photons can mediate superconducting (SC) signatures to a ferromagnetic insulator (FI) over a macroscopic distance [Phys. Rev. B, 102, 180506(R) (2020)]. In contrast with conventional proximity systems, thi
Externí odkaz:
http://arxiv.org/abs/2209.09308
When applying an external magnetic field to a superconductor, orbital and Pauli paramagnetic pairbreaking effects govern the limit of the upper critical magnetic field that can be supported before superconductivity breaks down. Experimental studies h
Externí odkaz:
http://arxiv.org/abs/2208.04338
Publikováno v:
EPJ Web of Conferences, Vol 146, p 12002 (2017)
Direct inelastic scattering to discrete excitations and pre-equilibrium emission are described within a microscopic model. Nuclear structure information are obtained in the (Quasi) Random Phase Approximation ((Q)RPA) framework implemented with the Go
Externí odkaz:
https://doaj.org/article/892af7f94cb84ad6aa8b8ebd1a665707
