Searched for: subject%3A%22conductivity%22
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Scholten, M.J. (author), Schoonman, J. (author), Van Miltenburg, J.C. (author), Oonk, H.A.J. (author)
journal article 1993
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Su, J.F. (author), Wang, X.Y (author), Huang, Z. (author), Zhao, Y.H. (author), Yuan, X.Y. (author)
Microencapsulated phase change materials (microPCMs) have been widely applied in solid matrix as thermal-storage or temperature-controlling functional composites. The thermal conductivity of these microPCMs/matrix composites is an important property need to be considered. In this study, a series of microPCMs have been fabricated using the in...
journal article 2011
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Prins, F. (author), Hayashi, T. (author), De Vos van Steenwijk, B.J.A. (author), Gao, B. (author), Osorio, E.A. (author), Muraki, K. (author), Van der Zant, H.S.J. (author)
We present a method to make Pt nanometer-spaced electrodes that are free of metallic particles and stable at ambient conditions. The nanogaps are fabricated using feedback-controlled electromigration to form few-atom contacts. When performing this procedure at elevated temperatures (>420?K), the Pt contacts undergo self-breaking so that...
journal article 2009
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Huang, X.J. (author), Schoonman, J. (author), Chen, L.Q. (author)
journal article 1994
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Tans, S.J. (author), Geerligs, L.J. (author), Dekker, C. (author), Wu, J. (author), Wegner, G. (author)
journal article 1997
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Hunziker, J.W. (author), Slob, E.C. (author), Mulder, W. (author)
In marine time-domain controlled-source electromagnetics (CSEM), there are two different acquisition methods: with horizontal sources for fast and simple data acquisition or with vertical sources for minimizing the effects of the airwave. Illustrations of the electric field as a function of space and time for various source antenna orientations,...
journal article 2011
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Dorenbos, P. (author), Van der Kolk, E. (author)
Knowledge from lanthanide spectroscopy on wide band gap (6–10?eV) inorganic compounds is used to understand and predict optical and electronic properties of the lanthanides in the III-V semiconductor GaN. For the first time the location of the 4fn ground state energy of each divalent and trivalent lanthanide ion relative to the valence and...
journal article 2006
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Deachapunya, S. (author), Stefanov, A. (author), Berninger, M. (author), Ulbricht, H. (author), Reiger, E. (author), Doltsinis, N.L. (author), Arndt, M. (author)
The authors present new measurements of thermal and electrical properties for two porphyrin derivatives. They determine their sublimation enthalpy from the temperature dependence of the effusive beam intensity. The authors study H2TPP and Fe(TPP)Cl in matter-wave interferometry. Both molecules have nearly equal de Broglie wavelengths but...
journal article 2007
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Vroubel, M. (author), Rejaei, B. (author)
The spin-wave spectrum of a ferromagnetic stripe placed above a metallic layer with finite conductivity is studied by using the magnetostatic Green’s function formalism. It is shown that the frequency and linewidth of the resonances are uniquely determined by complex, mode-dependent demagnetization factors. The formalism developed is used to...
journal article 2008
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Van der Kolk, E. (author), Basun, S.A. (author), Imbusch, G.F. (author), Yen, W.M. (author)
Electron delocalization processes of optically excited states of Ce3+ impurities in Lu2SiO5 were investigated by means of a temperature and spectrally resolved photoconductivity study. By monitoring separately the strength of the photocurrent resulting from excitation into each of the Ce3+?5d absorption bands, over a broad temperature region,...
journal article 2003
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Bezryadin, A. (author), Dekker, C. (author)
journal article 1997
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Van der Zant, H.S.J. (author), Mantel, O.C. (author), Dekker, C. (author), Mooij, J.E. (author), Traeholt, C. (author)
journal article 1996
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Klaver, A. (author), Nádaždy, V. (author), Zeman, M. (author), Swaaiij, R.A.C.M.M. (author)
We present a study of changes in the defect density of states in hydrogenated amorphous silicon (a-Si:H) due to high-energy electron irradiation using charged deep-level transient spectroscopy. It was found that defect states near the conduction band were removed, while in other band gap regions the defect-state density increased. A similar...
journal article 2006
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Khalili Amiri, P.K. (author), Rejaei, B. (author), Vroubel, M. (author), Zhuang, Y. (author)
The authors report on the observation of nonreciprocal spin wave propagation in a thin ( ? 200?nm) patterned Ni–Fe stripe. The spin wave transmission spectrum is measured using a pair of microstrip lines as antennas. The nonreciprocity of surface wave dispersion brought about by an adjacent aluminum ground leads to a nonreciprocal coupling of...
journal article 2007
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Rao, N. (author), Schoonman, J. (author), Sorensen, O.T. (author)
journal article 1992
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Jak, M.J.G. (author), Kelder, E.M. (author), Stuivinga, M. (author), Schoonman, J. (author), Chowdari, B.V.R. (author)
journal article 1996
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Nanu, M. (author), Boulch, F. (author), Schoonman, J. (author), Goossens, A. (author)
Deep-level transient spectroscopy (DLTS) has been used to measure the concentration and energy position of deep electronic states in CuInS2. Flat TiO2?CuInS2 heterojunctions as well as TiO2-CuInS2 nanocomposites have been investigated. Subband-gap electronic states in CuInS2 films are mostly due to antisite point defects and vacancies....
journal article 2005
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Van der Kolk, E. (author), De Haas, J.T.M. (author), Bos, A.J.J. (author), Van Eijk, C.W.E. (author), Dorenbos, P. (author)
A combined photoconductivity, absorption, and thermoluminescence study was performed to understand the absence of luminescence from Ce3+ in LaAlO3:Ce3+. It is demonstrated that the absence of luminescence is the result of Ce3+ ionization from the 5d excited states, which are all located in the conduction band. Ce3+ ionization is accompanied by...
journal article 2007
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Vollebregt, S. (author), Banerjee, S. (author), Beenakker, K. (author), Ishihara, R. (author)
The thermal conductivity of as-grown vertical multi-walled carbon nanotubes (CNT) bundles fabricated at low temperature (500?°C) was measured using a vertical 3?-method. For this, CNT were selectively grown inside an oxide opening and sandwiched between two metal electrodes. The validity of the method was confirmed by both measurements as...
journal article 2013
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Huijser, A. (author), Savenije, T.J. (author), Shalav, A. (author), Siebbeles, L.D.A. (author)
The exciton root-mean-square displacement (?D) in regioregular poly(3-hexylthiophene) (P3HT) deposited onto meso-tetrakis (n-methyl-4-pyridyl) porphyrin tetrachloride (H2TMPyP) has been determined from the photovoltaic response of a device based on these materials in a bilayer configuration. Excitons formed on illumination that reach the...
journal article 2008
Searched for: subject%3A%22conductivity%22
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