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Heremans, F.J. (author), Fuchs, G.D. (author), Wang, C.F. (author), Hanson, R. (author), Awschalom, D.D. (author)
We report time-dependent photocurrent and transport measurements of sub-bandgap photoexcited carriers in nitrogen-rich (type Ib), single-crystal diamond. Transient carrier dynamics are characteristic of trapping conduction with long charge storage lifetimes of ? 3?hours. By measuring the photoexcited Hall effect, we confirm that the charge...
journal article 2009
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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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Woeltgens, P.J.M. (author), Dekker, C. (author), De Wijn, H.W. (author)
journal article 1993
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