Zobrazeno 1 - 10
of 104
pro vyhledávání: '"Gepraegs, Stephan"'
Autor:
Weinbrenner, Paul, Klar, Patricia, Giese, Christian, Flacke, Luis, Müller, Manuel, Althammer, Matthias, Geprägs, Stephan, Gross, Rudolf, Reinhard, Friedemann
Planar scanning probe microscopy is a recently emerging alternative approach to tip-based scanning probe imaging. It can scan an extended planar sensor, such as a polished bulk diamond doped with magnetic-field-sensitive nitrogen-vacancy (NV) centers
Externí odkaz:
http://arxiv.org/abs/2409.04252
Autor:
Scheufele, Monika, Gückelhorn, Janine, Opel, Matthias, Kamra, Akashdeep, Huebl, Hans, Gross, Rudolf, Geprägs, Stephan, Althammer, Matthias
Publikováno v:
APL Mater. 11, 091115 (2023)
In easy-plane antiferromagnets, the nature of the elementary excitations of the spin system is captured by the precession of the magnon pseudospin around its equilibrium pseudofield, manifesting itself in the magnon Hanle effect. Here, we investigate
Externí odkaz:
http://arxiv.org/abs/2306.00375
Autor:
Müller, Manuel, Weber, Johannes, Engelhardt, Fabian, Bittencourt, Victor A. S. V., Luschmann, Thomas, Cherkasskii, Mikhail, Goennenwein, Sebastian T. B., Kusminskiy, Silvia Viola, Geprägs, Stephan, Gross, Rudolf, Althammer, Matthias, Huebl, Hans
Publikováno v:
Phys. Rev. B 109, 024430 (2024)
Magnomechanical devices, in which magnetic excitations couple to mechanical vibrations, have been discussed as efficient and broadband microwave signal transducers in the classical and quantum limit. We experimentally investigate the magnetoelastic c
Externí odkaz:
http://arxiv.org/abs/2303.08429
Autor:
Luschmann, Thomas, Jung, Alexander, Geprägs, Stephan, Haslbeck, Franz X., Marx, Achim, Filipp, Stefan, Gröblacher, Simon, Gross, Rudolf, Huebl, Hans
Publikováno v:
Mater. Quantum. Technol. 3, 021001 (2023)
Lithium niobate (LNO) is a well established material for surface acoustic wave (SAW) devices including resonators, delay lines and filters. Recently, multi-layer substrates based on LNO thin films have become commercially available. Here, we present
Externí odkaz:
http://arxiv.org/abs/2301.11213
Autor:
Gückelhorn, Janine, de-la-Peña, Sebastián, Grammer, Matthias, Scheufele, Monika, Opel, Matthias, Geprägs, Stephan, Cuevas, Juan Carlos, Gross, Rudolf, Huebl, Hans, Kamra, Akashdeep, Althammer, Matthias
Publikováno v:
Phys. Rev. Lett. 130, 216703 (2023)
The precession of magnon pseudospin about the equilibrium pseudofield, the latter capturing the nature of magnonic eigen-excitations in an antiferromagnet, gives rise to the magnon Hanle effect. Its realization via electrically injected and detected
Externí odkaz:
http://arxiv.org/abs/2209.09040
Autor:
Gyan, Deepankar Sri, Mannix, Danny, Carbone, Dina, Sumpter, James L., Geprägs, Stephan, Dietlein, Maxim, Gross, Rudolf, Jurgilaitis, Andrius, Pham, Van-Thai, Coudert-Alteirac, Hélène, Larsson, Jörgen, Haskel, Daniel, Strempfer, Jörg, Evans, Paul G.
Publikováno v:
Structural Dynamics 9, 045101 (2022)
Time-resolved x-ray diffraction has been used to measure the low-temperature thermal transport properties of a Pt/Gd3Fe5O12//Gd3Ga5O12 metal/oxide heterostructure relevant to applications in spin caloritronics. A pulsed femtosecond optical signal pro
Externí odkaz:
http://arxiv.org/abs/2207.14409
Publikováno v:
Annals of Physics, page 169117, Elsevier, available online 24 September 2022
Rare-earth iron garnets $R_{3}$Fe$_{5}$O$_{12}$ are fascinating insulators with very diverse magnetic phases. Their strong potential in spintronic devices has encouraged a renewal of interest in the study of their low temperature spin structures and
Externí odkaz:
http://arxiv.org/abs/2207.00017
Autor:
Müller, Manuel, Scheufele, Monika, Gückelhorn, Janine, Flacke, Luis, Weiler, Mathias, Huebl, Hans, Geprägs, Stephan, Gross, Rudolf, Althammer, Matthias
Publikováno v:
Journal of Applied Physics 132, 233905 (2022)
We study the static and dynamic magnetic properties of epitaxially strained $\gamma$-$\mathrm{Fe_2O_3}$ (maghemite) thin films grown via pulsed-laser deposition on MgO substrates by SQUID magnetometry and cryogenic broadband ferromagnetic resonance e
Externí odkaz:
http://arxiv.org/abs/2204.11498
Autor:
Gückelhorn, Janine, Kamra, Akashdeep, Wimmer, Tobias, Opel, Matthias, Geprägs, Stephan, Gross, Rudolf, Huebl, Hans, Althammer, Matthias
Antiferromagnetic materials host pairs of spin-up and spin-down magnons which can be described in terms of a magnonic pseudospin. The close analogy between this magnonic pseudospin systems and that of electronic charge carriers led to the prediction
Externí odkaz:
http://arxiv.org/abs/2112.03820
Autor:
Jost, Daniel, Peis, Leander, He, Ge, Baum, Andreas, Geprägs, Stephan, Palmstrom, Johanna C., Ikeda, Matthias S., Fisher, Ian R., Wolf, Thomas, Lederer, Samuel, Kivelson, Steven A., Hackl, Rudi
Publikováno v:
Commun. Phys. 5, 201 (2022)
Quantum critical fluctuations may prove to play an instrumental role in the formation of unconventional superconductivity. Here, we show that the characteristic scaling of a marginal Fermi liquid is present in inelastic light scattering data of an Fe
Externí odkaz:
http://arxiv.org/abs/2111.07521