Zobrazeno 1 - 10
of 283
pro vyhledávání: '"Durin, G."'
Micromagnetic exchange is usually derived by performing the continuum limit of the Heisenberg model on a cubic lattice, where the exchange integrals are assumed to be identical for all nearest neighbors. This limitation normally imposes the use of a
Externí odkaz:
http://arxiv.org/abs/2209.04186
Autor:
Magni, A., Carlotti, G., Casiraghi, A., Darwin, E., Durin, G., Diez, L. Herrera, Hickey, B. J., Huxtable, A., Hwang, C. Y., Jakob, G., Kim, C., Kläui, M., Langer, J., Marrows, C. H., Nembach, H. T., Ravelosona, D., Riley, G. A., Shaw, J. M., Sokalski, V., Tacchi, S., Kuepferling, M.
Different models have been used to evaluate the interfacial Dzyaloshinskii-Moriya interaction (DMI) from the asymmetric bubble expansion method using magneto-optics. Here we investigate the most promising candidates over a range of different magnetic
Externí odkaz:
http://arxiv.org/abs/2201.04925
Autor:
Pachat, R., Ourdani, D., van der Jagt, J. W., Syskaki, M. -A., Di Pietro, A., Roussigné, Y., Ono, S., Gabor, M. S., Chérif, M., Durin, G., Langer, J., Belmeguenai, M., Ravelosona, D., Diez, L. Herrera
Publikováno v:
Phys. Rev. Applied 15, 064055 (2021)
In Ta/CoFeB/HfO2 stacks a gate voltage drives, in a nonvolatile way, the system from an underoxidized state exhibiting in-plane anisotropy (IPA) to an optimum oxidation level resulting in perpendicular anisotropy (PMA) and further into an overoxidize
Externí odkaz:
http://arxiv.org/abs/2105.05988
Publikováno v:
Phys. Rev. Lett. 117, 087201 (2016)
We provide the first quantitative comparison between Barkhausen-noise experiments and recent predictions from the theory of avalanches for pinned interfaces, both in and beyond mean-field. We study different classes of soft magnetic materials: polycr
Externí odkaz:
http://arxiv.org/abs/1601.01331
We investigate the statistical properties of the Barkhausen noise in amorphous ferromagnetic films with thicknesses in the range between $100$ and $1000$ nm. From Barkhausen noise time series measured with the traditional inductive technique, we perf
Externí odkaz:
http://arxiv.org/abs/1407.0396
Autor:
Leliaert, J., Van de Wiele, B., Vansteenkiste, A., Laurson, L., Durin, G., Dupré, L., Van Waeyenberge, B.
Publikováno v:
Phys. Rev. B 89, 064419 (2014)
Many future concepts for spintronic devices are based on the current-driven motion of magnetic domain walls through nanowires. Consequently a thorough understanding of the domain wall mobility is required. However, the magnitude of the nonadiabatic c
Externí odkaz:
http://arxiv.org/abs/1306.0681
We investigate dynamic hysteresis and Barkhausen noise in ferromagnetic materials with a huge number of parallel and rigid Bloch domain walls. Considering a disordered ferromagnetic system with strong in-plane uniaxial anisotropy and in-plane magneti
Externí odkaz:
http://arxiv.org/abs/0901.2918
Publikováno v:
EEE Trans. on Magn. 39, 2666 (2003)
We performed a series of dynamic hysteresis measurements on three series of Finemet films with composition Fe$_{73.5}$Cu$_1$Nb$_3$Si$_13.5$B$_9$, using both the longitudinal magneto-optical Kerr effect (MOKE) and the inductive fluxometric method. The
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507299
Publikováno v:
J. Magn. Magn. Mat 272-276, E1009 (2004)
Demagnetization, commonly employed to study ferromagnets, has been proposed as the basis for an optimization tool, a method to find the ground state of a disordered system. Here we present a detailed comparison between the ground state and the demagn
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507297
Publikováno v:
J. Magn. Magn. Mat 272-276, E533 (2004)
The average shape of the pulse in Barkhausen noise has been recently proposed as a tool to compare models and experiments. We compute theoretically the pulse shape of Barkhausen noise in a model describing the motion of a domain wall in an effective
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507296