Searched for: faculty%3A%22Applied%255C%252BSciences%22
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Maas, D. (author), Van veldhoven, E. (author), Chen, P. (author), Sidorkin, V. (author), Salemink, H. (author), Van der Drift, E. (author), Alkemade, P. (author)
The recently introduced helium ion microscope (HIM) is capable of imaging and fabrication of nanostructures thanks to its sub-nanometer sized ion probe [1,2]. The unique interaction of the helium ions with the sample material provides very localized secondary electron emission, thus providing a valuable signal for high-resolution imaging as well...
conference paper 2010
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Maas, D. (author), Van Veldhoven, E. (author), Chen, P. (author), Sidorkin, V. (author), Salemink, H. (author), Van der Drift, E. (author), Alkemade, P. (author)
The recently introduced helium ion microscope (HIM) is capable of imaging and fabrication of nanostructures thanks to its sub-nanometer sized ion probe [1,2]. The unique interaction of the helium ions with the sample material provides very localized secondary electron emission, thus providing a valuable signal for high-resolution imaging as well...
conference paper 2009
document
Chen, B. (author)
?-Hydroxy carbonyl compounds are an important class of compounds often found as a common structural motif in natural products. Although the molecules themselves look rather simple, their synthesis can be challenging. Water addition to conjugated C = C bonds opens up a straightforward route for the preparation of ?-hydroxy carbonyl compounds....
doctoral thesis 2015
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Chen, N.Y. (author)
doctoral thesis 1995
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Chen, C. (author)
doctoral thesis 1998
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Chen, J.D. (author)
doctoral thesis 1995
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Chen, P. (author)
The direct writing technology known as ion-beam-induced deposition (IBID) has been attracting attention mainly because of its high degree of flexibility of locally prototyping three-dimensional (3D) nanostructures. These high-resolution nanostructures have various research applications. However, no systematic study of the capability of IBID to...
doctoral thesis 2010
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Chen, Y.T. (author)
In this thesis, we report several effects in spintronics and spin caloritronics related to relativistic spin-orbit coupling. In Chapter 2, we discuss the relativistic spin caloritronicHall effects in terms of a semiclassical theory for anomalous thermoelectric effects in ferromagnetic metals due to spin-orbit scattering at impurities, including...
doctoral thesis 2014
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Chen, S.P. (author)
Microstructural modeling of thermomechanical processing is well established as a valuable procedure for optimizing processing conditions in the steel industry, while the similar work for aluminum industry is still an opening problem. Recovery, recrystallization and grain growth are core elements of this processing. This thesis concentrates on...
doctoral thesis 2003
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Chen, T. (author), Wu, M.Y. (author), Ishihara, R. (author), Nomura, K. (author), Kamiya, T. (author), Hosono, H. (author), Beenakker, C.I.M. (author)
In this paper, we were able to crystallize InGaZnO4 (IGZO) by excimer laser on SiO2 substrate. It was observed that uniform [0001] textured polycrystalline IGZO film has been obtained without any grain boundaries and oxygen vacancies on SiO2 substrate. This process is very promising in fabricating high quality IGZO thin film transistors (TFT) at...
journal article 2011
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Chen, Y.T. (author), Takahashi, S. (author), Nakayama, H. (author), Althammer, M. (author), Goennenwein, S.T.B. (author), Saitoh, E. (author), Bauer, G.E.W. (author)
We present a theory of the spin Hall magnetoresistance (SMR) in multilayers made from an insulating ferromagnet F, such as yttrium iron garnet (YIG), and a normal metal N with spin-orbit interactions, such as platinum (Pt). The SMR is induced by the simultaneous action of spin Hall and inverse spin Hall effects and therefore a nonequilibrium...
journal article 2013
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Chen, B.S. (author), Resch, V. (author), Otten, L.G. (author), Hanefeld, U. (author)
The enantioselective Michael addition using water as both nucleophile and solvent has to date proved beyond the ability of synthetic chemists. Herein, the direct, enantioselective Michael addition of water in water to prepare important ?-hydroxy carbonyl compounds using whole cells of Rhodococcus strains is described. Good yields and excellent...
journal article 2014
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Chen, P. (author), Salemink, H.W.M. (author), Alkemade, P.F.A. (author)
The authors report the results of investigating two models for ion-beam-induced deposition (IBID). These models describe IBID in terms of the impact of secondary electrons and of sputtered atoms, respectively. The yields of deposition, sputtering, and secondary electron emission, as well as the energy spectra of the secondary electrons were...
journal article 2009
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Zhou, Y. (author), Jiao, H. (author), Chen, Y. (author), Bauer, G.E.W. (author), Xiao, J. (author)
We develop a self-consistent theory for current-induced spin-wave excitations in normal metal/magnetic insulator bilayer structures. We compute the spin-wave dispersion and dissipation, including dipolar and exchange interactions in the magnet, the spin diffusion in the normal metal, as well as the surface anisotropy, spin-transfer torque, and...
journal article 2013
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Althammer, M. (author), Meyer, S. (author), Nakayama, H. (author), Schreier, M. (author), Altmannshofer, S. (author), Weiler, M. (author), Huebl, H. (author), Gesprägs, S. (author), Opel, M. (author), Gross, R. (author), Meier, D. (author), Klewe, C. (author), Kuschel, T. (author), Schmalhorst, J.M. (author), Reiss, G. (author), Shen, L. (author), Gupta, A. (author), Chen, Y.T. (author), Bauer, G.E.W. (author), Saitoh, E. (author), Goennenwein, S.T.B. (author)
We experimentally investigate and quantitatively analyze the spin Hall magnetoresistance effect in ferromagnetic insulator/platinum and ferromagnetic insulator/nonferromagnetic metal/platinum hybrid structures. For the ferromagnetic insulator, we use either yttrium iron garnet, nickel ferrite, or magnetite and for the nonferromagnet, copper or...
journal article 2013
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Chen, P. (author), Van Veldhoven, E. (author), Sanford, C.A. (author), Salemink, H.W.M. (author), Maas, D.J. (author), Smith, D.A. (author), Rack, P.D. (author), Alkemade, P.F.A. (author)
A 25 keV focused helium ion beam has been used to grow PtC nanopillars on a silicon substrate by beam-induced decomposition of a (CH3)3Pt(CPCH3) precursor gas. The ion beam diameter was about 1 nm. The observed relatively high growth rates suggest that electronic excitation is the dominant mechanism in helium ion-beam-induced deposition. Pillars...
journal article 2010
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Alkemade, P.F.A. (author), Chen, P. (author), Van Veldhoven, E. (author), Maas, D. (author)
An analytical model for the growth of nanopillars by helium ion-beam-induced deposition is presented and compared to experimental data. This model describes the competition between pillar growth in vertical and lateral directions. It assumes that vertical growth is induced by incident primary ions and type-1 secondary electrons, whereas lateral...
journal article 2010
document
He, Y. (author), Chen, J.Y. (author), Knab, J.R. (author), Zheng, W. (author), Markelz, A.G. (author)
We investigate the presence of structural collective motions on a picosecond timescale for the heme protein, cytochrome c, as a function of oxidation and hydration, using terahertz (THz) time domain spectroscopy and molecular dynamics simulations. The THz response dramatically increases with oxidation, with the largest increase for lowest...
journal article 2011
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Ding, F. (author), Singh, R. (author), Plumhof, J.D. (author), Zander, T. (author), K?ápek, V. (author), Chen, Y.H. (author), Benyoucef, M. (author), Zwiller, V. (author), Dörr, K. (author), Bester, G. (author), Rastelli, A. (author), Schmidt, O.G. (author)
We study the effect of an external biaxial stress on the light emission of single InGaAs/GaAs(001) quantum dots placed onto piezoelectric actuators. With increasing compression, the emission blueshifts and the binding energies of the positive trion (X+) and biexciton (XX) relative to the neutral exciton (X) show a monotonic increase. This...
journal article 2010
document
Chen, B.S. (author), Otten, L.G. (author), Resch, V. (author), Muyzer, G. (author), Hanefeld, U. (author)
Rhodococcus rhodochrous ATCC 17895 possesses an array of mono- and dioxygenases, as well as hydratases, which makes it an interesting organism for biocatalysis. R. rhodochrous is a Gram-positive aerobic bacterium with a rod-like morphology. Here we describe the features of this organism, together with the complete genome sequence and annotation....
journal article 2013
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