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Keizer, R.S. (author)This thesis describes a series of experiments and a theoretical study in order to understand and control the behavior of electrons in many-body systems. In particular, the experiments concentrate on competition between the - antagonistic - electronic states of superconductivity and ferromagnetism, and are strongly motivated by the recent...doctoral thesis 2007
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Goennenwein, S.T.B. (author), Schink, S.W. (author), Brandlmaier, A. (author), Boger, A. (author), Opel, M. (author), Gross, R. (author), Keizer, R.S. (author), Klapwijk, T.M. (author), Gupta, A. (author), Huebl, H. (author), Bihler, C. (author), Brandt, M.S. (author)We study the magnetoresistance properties of thin ferromagnetic CrO2 and Fe3O4 films under microwave irradiation. Both the sheet resistance ? and the Hall voltage VHall characteristically change when a ferromagnetic resonance (FMR) occurs in the film. The electrically detected ferromagnetic resonance (EDFMR) signals closely match the...journal article 2007
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Goennenwein, S.T.B. (author), Keizer, R.S. (author), Schink, S.W. (author), Van Dijk, I. (author), Klapwijk, T.M. (author), Miao, G.X. (author), Xiao, G. (author), Gupta, A. (author)We have measured the in-plane anisotropic magnetoresistance of 100?nm thick CrO2 thin films at liquid He temperatures. In low magnetic fields H, both the longitudinal and the transverse (planar Hall) resistance show abrupt switches, which characteristically depend on the orientation of H. All the experimental findings consistently demonstrate...journal article 2007
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- Keizer, R.S. (author), Flokstra, M.G. (author), Aarts, J. (author), Klapwijk, T.M. (author) journal article 2006