A gateway towards non-collinear spin processing using three-atom magnets with strong substrate coupling

Autor: Chr. Hübner, Jens Wiebe, Julen Ibañez-Azpiroz, M. dos Santos Dias, Roland Wiesendanger, B. Baxevanis, Jan Hermenau, Alexander A. Khajetoorians, K. T. Ton, Samir Lounis, Manuel Steinbrecher, Stefan Blügel, A. Sonntag

Publikováno v: Nature Communications, 8, 1-9
Nature Communications, 8, pp. 1-9
Nature Communications, Vol 8, Iss 1, Pp 1-9 (2017)
Nature Communications
Nature Communications 8(1), 642 (2017). doi:10.1038/s41467-017-00506-7
Nature Communications, 8, 642

A cluster of a few magnetic atoms on the surface of a nonmagnetic substrate is one suitable realization of a bit for spin-based information technology. The prevalent approach to achieve magnetic stability is decoupling the cluster spin from substrate

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::baa4fb0fcc3f9eb3945aa10a4cc15517
https://doi.org/10.1038/s41467-017-00506-7

Two-dimensional Josephson vortex lattice and anomalously slow decay of the Fraunhofer oscillations in a ballistic SNS junction with a warped Fermi surface

Autor: V. P. Ostroukh, B. Baxevanis, C. W. J. Beenakker, Anton R. Akhmerov

Publikováno v: Physical Review B
Physical Review B (Condensed Matter and Materials Physics), 94(9)
Physical Review B, 94, 094514

$ $The critical current of a Josephson junction is an oscillatory function of the enclosed magnetic flux $\Phi$, because of quantum interference modulated with periodicity $h/2e$. We calculate these Fraunhofer oscillations in a two-dimensional (2D) b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5fee436d15a3c0f2c004aac18162e5b7
http://arxiv.org/abs/1606.08247

Geometrical Control of Spin Transitions in Quantum Rings

Autor: Daniela Pfannkuche, B. Baxevanis

Publikováno v: Journal of Nanoelectronics and Optoelectronics. 6:76-80

We compute the energy difference between spin states in a quantum ring by employing the path integral Monte Carlo method. The focus is put on the effect of changes of the ring radius and the elliptical deformation on the spin of the ground state. The

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b3f57c5686ac97571831699b8cbc8513
https://doi.org/10.1166/jno.2011.1136

Even-odd flux quanta effect in the Fraunhofer oscillations of an edge-channel Josephson junction

Autor: C. W. J. Beenakker, B. Baxevanis, V. P. Ostroukh

Publikováno v: PHYSICAL REVIEW B
PHYSICAL REVIEW B, 91(4), 041409

We calculate the beating of $h/2e$ and $h/e$ periodic oscillations of the flux-dependent critical supercurrent ${I}_{c}(\ensuremath{\Phi})$ through a quantum spin-Hall insulator between two superconducting electrodes. A conducting pathway along the s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::276dce5b29be4f697f68609c9f3bdab5

Coulomb Interaction in Finite-Width Quantum Rings

Autor: B. Baxevanis, Daniela Pfannkuche

Publikováno v: Physics of Quantum Rings ISBN: 9783642391965

Due to the particular confinement and reduced dimensionality of quantum rings, Coulomb interaction plays an important role for their electronic structure. In this chapter, we discuss the dependency of the ground state of an idealized quantum ring con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cbf0c57744ce5218e36a4c87366ae3df
https://doi.org/10.1007/978-3-642-39197-2_15