Zobrazeno 1 - 10
of 379
pro vyhledávání: '"Kuepper, K."'
Publikováno v:
Phys. Rev. Materials 4, 064404 (2020)
NiFe$_2$O$_4$ thin films with varying thickness were grown on SrTiO$_3$(001) by reactive molecular beam epitaxy. Soft and hard x-ray photoelectron spectroscopy measurements reveal a homogeneous cation distribution throughout the whole film with stoic
Externí odkaz:
http://arxiv.org/abs/2003.11317
Autor:
Hirian, R., Dudric, R., Isnard, O., Kuepper, K., Coldea, M., Barbu-Tudoran, L., Pop, V., Benea, D.
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 August 2021 532
Autor:
Kuepper, K., Kuschel, O., Pathé, N., Schemme, T., Schmalhorst, J., Thomas, A., Gorgoi, E. Arenholz M., Ovsyannikov, R., Bartkowski, S., Reiss, G., Wollschläger, J.
Publikováno v:
Phys. Rev. B 94, 024401 (2016)
We study the underlying chemical, electronic and magnetic properties of a number of magnetite based thin films. The main focus is placed onto NiO/Fe$_3$O$_4$(001) bilayers grown on MgO(001) and Nb-SrTiO$_3$(001) substrates. We compare the results wit
Externí odkaz:
http://arxiv.org/abs/1602.05804
Autor:
Kuschel, O., Buß, R., Spiess, W., Schemme, T., Wöllermann, J., Balinski, K., Kuschel, T., N'Diaye, A. T., Wollschläger, J., Kuepper, K.
Publikováno v:
Phys. Rev. B 94, 094423 (2016)
Ferrites with (inverse) spinel structure display a large variety of electronic and magnetic properties making some of them interesting for potential applications in spintronics. We investigate the thermally induced interdiffusion of Ni$^{2+}$ ions ou
Externí odkaz:
http://arxiv.org/abs/1602.05773
Autor:
Naumov, S.P., Mushnikov, N.V., Terentev, P.B., Gaviko, V.S., Kleinerman, N.M., Galakhov, V.R., Kuepper, K., Vagizov, F.G.
Publikováno v:
In Journal of Alloys and Compounds 15 February 2021 854
A well ordered Fe(001) ultra thin film epitaxially grown on MgO(001) has been oxidized by post deposition annealing in oxygen atmosphere. LEED patterns indicate the formation of magnetite (Fe$_3$O$_4$) after one hour of oxygen exposure. The LEED patt
Externí odkaz:
http://arxiv.org/abs/1501.07443
Autor:
Zhou, Shengqiang, Potzger, K., Xu, Qingyu, Kuepper, K., Talut, G., Marko, D., Muecklich, A., Helm, M., Fassbender, J., Arenholz, E., Schmidt, H.
Publikováno v:
Phys. Rev. B 80, 094409 (2009)
In this paper we show that spinel ferrite nanocrystals (NiFe2O4, and CoFe2O4) can be texturally embedded inside a ZnO matrix by ion implantation and post-annealing. The two kinds of ferrites show different magnetic properties, e.g. coercivity and mag
Externí odkaz:
http://arxiv.org/abs/0908.3488
Autor:
Zhou, Shengqiang, Potzger, K., Talut, G., Reuther, H., Kuepper, K., Grenzer, J., Xu, Qingyu, Helm, A. Muecklich M., Fassbender, J., Arenholz, E.
Publikováno v:
J. Phys. D: Appl. Phys. 41 105011 (2008)
We investigated ZnO(0001) single crystals annealed in high vacuum with respect to their magnetic properties and cluster formation tendency after implant-doping with Fe. While metallic Fe cluster formation is suppressed, no evidence for the relevance
Externí odkaz:
http://arxiv.org/abs/0908.0402
Autor:
Potzger, K., Zhou, Shengqiang, Reuther, H., Kuepper, K., Talut, G., Helm, M., Fassbender, J., Denlinger, J. D.
Publikováno v:
Appl. Phys. Lett. 91, 062107 (2007)
Unwanted secondary phases are one of the major problems in diluted magnetic semiconductor creation. Here, the authors show possibilities to avoid such phases in Fe implanted and postannealed ZnO(0001) single crystals. While -Fe nanoparticles are form
Externí odkaz:
http://arxiv.org/abs/0908.0396
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.