Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Kehlberger A"'
Autor:
Masciocchi, Giovanni, Fattouhi, Mouad, Spetzler, Elizaveta, Syskaki, Maria-Andromachi, Lehndorff, Ronald, Martinez, Eduardo, McCord, Jeffrey, Lopez-Diaz, Luis, Kehlberger, Andreas, Kläui, Mathias
In this work, we propose and evaluate an inexpensive and CMOS-compatible method to locally apply strain on a Si/SiOx substrate. Due to high growth temperatures and different thermal expansion coefficients, a SiN passivation layer exerts a compressive
Externí odkaz:
http://arxiv.org/abs/2305.05384
Autor:
Masciocchi, Giovanni, Kools, Thomas J., Li, Pingzhi, Petrillo, Adrien A. D., Koopmans, Bert, Lavrijsen, Reinoud, Kehlberger, Andreas, Kläui, Mathias
Synthetic ferrimagnets are an attractive materials class for spintronics as they provide access to all-optical switching of magnetization and, at the same time, allow for ultrafast domain wall motion at angular momentum compensation. In this work, we
Externí odkaz:
http://arxiv.org/abs/2303.15191
Autor:
Masciocchi, Giovanni, van der Jagt, Johannes Wilhelmus, Syskaki, Maria-Andromachi, Langer, Jürgen, Jakob, Gerhard, McCord, Jeffrey, Borie, Benjamin, Kehlberger, Andreas, Ravelosona, Dafine, Kläui, Mathias
Permalloy, despite being a widely utilized soft magnetic material, still calls for optimization in terms of magnetic softness and magnetostriction for its use in magnetoresistive sensor applications. Conventional annealing methods are often insuffici
Externí odkaz:
http://arxiv.org/abs/2302.14455
Autor:
Masciocchi, Giovanni, van der Jagt, Johannes Wilhelmus, Syskaki, Maria-Andromachi, Lamperti, Alessio, Wolff, Niklas, Lotnyk, Andriy, Langer, Jürgen, Kienle, Lorenz, Jakob, Gerhard, Borie, Benjamin, Kehlberger, Andreas, Ravelosona, Dafine, Kläui, Mathias
This study reports the effects of post-growth He$^+$ irradiation on the magneto-elastic properties of a $Ni$ /$Fe$ multi-layered stack. The progressive intermixing caused by He$^+$ irradiation at the interfaces of the multilayer allows us to tune the
Externí odkaz:
http://arxiv.org/abs/2207.02493
Autor:
Masciocchi, Giovanni, Fattouhi, Mouad, Kehlberger, Andreas, Lopez-Diaz, Luis, Syskaki, Maria-Andromachi, Kläui, Mathias
We investigate experimentally the effects of externally applied strain on the injection of 180$^\circ$ domain walls (DW) from a nucleation pad into magnetic nanowires, as typically used for DW-based sensors. In our study the strain, generated by subs
Externí odkaz:
http://arxiv.org/abs/2108.13881
Publikováno v:
Phys. Rev. Applied 8, 024017 (2017)
We study the key domain wall properties in segmented nanowires loop-based structures used in domain wall based sensors. The two reasons for device failure, namely the distribution of domain wall propagation field (depinning) and the nucleation field
Externí odkaz:
http://arxiv.org/abs/1704.07371
Autor:
Cramer, Joel, Guo, Er-Jia, Geprägs, Stephan, Kehlberger, Andreas, Ivanov, Yurii P., Ganzhorn, Kathrin, Della Coletta, Francesco, Althammer, Matthias, Huebl, Hans, Gross, Rudolf, Kosel, Jürgen, Kläui, Mathias, Goennenwein, Sebastian T. B.
We investigate the generation of magnonic thermal spin currents and their mode selective spin transport across interfaces in insulating, compensated ferrimagnet/normal metal bilayer systems. The spin Seebeck effect signal exhibits a non-monotonic tem
Externí odkaz:
http://arxiv.org/abs/1703.03218
Autor:
Guo, Er-Jia, Herklotz, Andreas, Kehlberger, Andreas, Cramer, Joel, Jakob, Gerhard, Klaeui, Mathias
The longitudinal spin Seebeck effect (LSSE) has been investigated in high-quality epitaxial CoFe2O4 (CFO) thin films. The thermally excited spin currents in the CFO films are electrically detected in adjacent Pt layers due to the inverse spin Hall ef
Externí odkaz:
http://arxiv.org/abs/1509.03601
Publikováno v:
Phys. Rev. X 6, 031012 (2016)
The temperature dependent longitudinal spin Seebeck effect (SSE) in heavy metal (HM)/ Y3Fe5O12 (YIG) bilayers is investigated as a function of different magnetic field strength, different HM detection material, and YIG thickness ranging from nm to mm
Externí odkaz:
http://arxiv.org/abs/1506.06037
Autor:
Ritzmann, Ulrike, Hinzke, Denise, Kehlberger, Andreas, Guo, Er-Jia, Kläui, Mathias, Nowak, Ulrich
The origin of the suppression of the longitudinal spin Seebeck effect by applied magnetic fields is studied. We perform numerical simulations of the stochastic Landau-Lifshitz-Gilbert equation of motion for an atomistic spin model and calculate the m
Externí odkaz:
http://arxiv.org/abs/1506.05290