Searched for: faculty%3A%22Applied%255C%252BSciences%22
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Galán, E. (author), Perrin, M.L. (author), Lutz, M. (author), Van der Zant, H.S.J. (author), Grozema, F.C. (author), Eelkema, R. (author)
We have described the synthesis of novel biphenylethane-based wires for molecular electronics. Exceptional single-molecule diode behavior was predicted for unsymmetrically substituted biphenylethane derivatives, synthesized here using the so far unexplored unsymmetrically substituted 1,2-bis(4-bromophenyl)ethanes as key intermediates, which were...
journal article 2016
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Island, J.O. (author), Kuc, A. (author), Diependaal, E.H. (author), Bratschitsch, R. (author), Van der Zant, H.S.J. (author), Heine, T. (author), Castellanos-Gomez, A. (author)
We present photoluminescence (PL) spectroscopy measurements of single-layer MoSe2 as a function of uniform uniaxial strain. A simple clamping and bending method is described that allows for application of uniaxial strain to layered, 2D materials with strains up to 1.1% without slippage. Using this technique, we find that the electronic band gap...
journal article 2016
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Lissau, H. (author), Frisenda, R. (author), Olsen, S.T. (author), Jevric, M. (author), Parker, C.R. (author), Kadziola, A. (author), Hansen, T. (author), Van der Zant, H.S.J. (author), Brondsted Nielsen, M. (author), Mikkelsen, K.V. (author)
The ability of molecules to change colour on account of changes in solvent polarity is known as solvatochromism and used spectroscopically to characterize charge-transfer transitions in donor–acceptor molecules. Here we report that donor–acceptor-substituted molecular wires also exhibit distinct properties in single-molecule electronics under...
journal article 2015
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Frisenda, R. (author), Perrin, M.L. (author), Van der Zant, H.S.J. (author)
We study single-molecule oligo(phenylene ethynylene)dithiol junctions by means of inelastic electron tunneling spectroscopy (IETS). The molecule is contacted with gold nano-electrodes formed with the mechanically controllable break junction technique. We record the IETS spectrum of the molecule from direct current measurements, both as a...
journal article 2015
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Nishiguchi, K. (author), Castellanos-Gomez, A. (author), Yamaguchi, H. (author), Fujiwara, A. (author), Van der Zant, H.S.J. (author), Steele, G.A. (author)
We demonstrate a tunnel diode composed of a vertical MoS2/SiO2/Si heterostructure. A MoS2 flake consisting four areas of different thicknesses functions as a gate terminal of a silicon field-effect transistor. A thin gate oxide allows tunneling current to flow between the n-type MoS2 layers and p-type Si channel. The tunneling-current...
journal article 2015
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Frisenda, R. (author), Parlato, L. (author), Barra, M. (author), Van der Zant, H.S.J. (author), Cassinese, A. (author)
In this letter, we report the single-molecule conductance properties of a cyano-functionalized perylene-diimide derivative (PDI8-CN 2 ) investigated with gold nano-electrodes. This molecule is of large interest for the fabrication of high-performance and air-stable n-type organic field-effect transistors. Low-bias experiments performed on...
journal article 2015
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Cartamil Bueno, S.J. (author), Steeneken, P.G. (author), Tichelaar, F.D. (author), Navarro Moratalla, E. (author), Venstra, W.J. (author), Leeuwen, R. (author), Coronado, E. (author), Van der Zant, H.S.J. (author), Steele, G.A. (author), Castellanos-Gomez, A. (author)
Controlling the strain in two-dimensional (2D) materials is an interesting avenue to tailor the mechanical properties of nanoelectromechanical systems. Here, we demonstrate a technique to fabricate ultrathin tantalum oxide nanomechanical resonators with large stress by the laser oxidation of nano-drumhead resonators composed of tantalum...
journal article 2015
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Frisenda, R. (author), Tarkuc, S. (author), Galan, E. (author), Perrin, M.L. (author), Eelkema, R. (author), Grozema, F.C. (author), Van der Zant, H.S.J. (author)
We report on an experimental investigation of transport through single molecules, trapped between two gold nano-electrodes fabricated with the mechanically controlled break junction (MCBJ) technique. The four molecules studied share the same core structure, namely oligo(phenylene ethynylene) (OPE3), while having different aurophilic anchoring...
journal article 2015
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Gaudenzi, R. (author), Island, J.O. (author), De Bruijckere, J. (author), Burzuri, E. (author), Klapwijk, T.M. (author), Van der Zant, H.S.J. (author)
We demonstrate that electronic transport through single molecules or molecular ensembles, commonly based on gold (Au) electrodes, can be extended to superconducting electrodes by combining gold with molybdenum-rhenium (MoRe). This combination induces proximity-effect superconductivity in the gold to temperatures of at least 4.6K and magnetic...
journal article 2015
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McCaskey, A. (author), Yamamoto, Y. (author), Warnock, M. (author), Burzuri, E. (author), Van der Zant, H.S.J. (author), Park, K. (author)
We investigate how the electron-vibron coupling influences electron transport via an anisotropic magnetic molecule, such as a single-molecule magnet (SMM) Fe4, by using a model Hamiltonian with parameter values obtained from density-functional theory (DFT). The magnetic anisotropy parameters, vibrational energies, and electron-vibron coupling...
journal article 2015
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Misiorny, M. (author), Burzuri, E. (author), Gaudenzi, R. (author), Park, K. (author), Leijnse, M. (author), Wegewijs, M.R. (author), Paaske, J. (author), Cornia, A. (author), Van der Zant, H.S.J. (author)
By means of electronic transport, we study the transverse magnetic anisotropy of an individual Fe4 singlemolecule magnet (SMM) embedded in a three-terminal junction. In particular, we determine in situ the transverse anisotropy of the molecule from the pronounced intensity modulations of the linear conductance, which are observed as a function...
journal article 2015
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Van Leeuwen, R. (author), Karabacak, D.M. (author), Van der Zant, H.S.J. (author), Venstra, W.J. (author)
We study the dynamics of a nonlinear electromechanical oscillator with delayed feedback. Compared to their linear counterparts, we find that the dynamics is dramatically different. The well-known Barkhausen stability criterion ceases to exist, and two modes of operation emerge: one characterized by hysteresis in combination with a bistable...
journal article 2013
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Nishiguchi, K. (author), Yamaguchi, H. (author), Fujiwara, A. (author), Van der Zant, H.S.J. (author), Steele, G.A. (author)
We demonstrate high-speed charge detection at room temperature with single-electron resolution by using a radio-frequency field-effect transistor (RF-FET). The RF-FET combines a nanometer-scale silicon FET with an impedance-matching circuit composed of an inductor and capacitor. Driving the RF-FET with a carrier signal at its resonance frequency...
journal article 2013
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Rudneva, M. (author), Gao, B. (author), Prins, F. (author), Xu, Q. (author), Van der Zant, H.S.J. (author), Zandbergen, H.W. (author)
In situ transmission electron microscopy was performed on the electromigration in platinum (Pt) nanowires (14 nm thick, 200 nm wide, and 300 nm long) with and without feedback control. Using the feedback control mode, symmetric electrodes are obtained and the gap usually forms at the center of the Pt nanowire. Without feedback control,...
journal article 2013
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Meerwaldt, H.B. (author), Johnston, S.R. (author), Van der Zant, H.S.J. (author), Steele, G.A. (author)
We report fast readout of the motion of a carbon nanotube mechanical resonator. A close-proximity high electron mobility transistor amplifier is used to increase the bandwidth of the measurement of nanotube displacements from the kHz to the MHz regime. Using an electrical detection scheme with the nanotube acting as a mixer, we detect the...
journal article 2013
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Seshan, V. (author), Ullien, D. (author), Castellanos-Gomez, A. (author), Sachdeva, S. (author), Murthy, D.H.K. (author), Savenije, T.J. (author), Ahmad, H.A. (author), Nunney, T.S. (author), Janssens, S.D. (author), Haenen, K. (author), Nesládek, M. (author), Van der Zant, H.S.J. (author), Sudhölter, E.J.R. (author), De Smet, L.C.P.M. (author)
A high-temperature procedure to hydrogenate diamond films using molecular hydrogen at atmospheric pressure was explored. Undoped and doped chemical vapour deposited (CVD) polycrystalline diamond films were treated according to our annealing method using a H2 gas flow down to ?50 ml/min (STP) at ?850?°C. The films were extensively evaluated by...
journal article 2013
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Arroyo Rodriguez, C. (author), Frisenda, R. (author), Moth-Poulsen, K. (author), Seldenthuis, J.S. (author), Bjornholm, T. (author), Van der Zant, H.S. (author)
Interference effects on charge transport through an individual molecule can lead to a notable modulation and suppression on its conductance. In this letter, we report the observation of quantum interference effects occurring at room temperature in single-molecule junctions based on oligo(3)-phenylenevinylene (OPV3) derivatives, in which the...
journal article 2013
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Venstra, W.J. (author), Van Leeuwen, R. (author), Van der Zant, H.S.J. (author)
We demonstrate a strong coupling between the flexural vibration modes of a clamped-clamped micromechanical resonator vibrating at low amplitudes. This coupling enables the direct measurement of the frequency response via amplitude- and phase modulation schemes using the fundamental mode as a mechanical detector. In the linear regime, a frequency...
journal article 2012
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Fock, J. (author), Leijnse, M. (author), Jennum, K. (author), Zyazin, A.S. (author), Paaske, J. (author), Hedegard, P. (author), Brondsted Nielsen, M. (author), Van der Zant, H.S.J. (author)
Inspired by cotunneling spectroscopy of spin-states in a single OPE5-based molecule, we investigate the prospects for electric control of magnetism in purely organic molecules contacted in a three-terminal geometry. Using the gate electrode, the molecule is reversibly switched between three different redox states, with magnetic spectra revealing...
journal article 2012
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Seshan, V. (author), Arroyo, C.R. (author), Castellanos-Gomez, A. (author), Prins, F. (author), Perrin, M.L. (author), Janssens, S.D. (author), Haenen, K. (author), Nesládek, M. (author), Sudhölter, E.J.R. (author), De Smet, L.C.P.M. (author), Van der Zant, H.S.J. (author), Dulic, D. (author)
A high-current annealing technique is used to fabricate nanogaps and hybrid diamond/graphite structures in boron-doped nanocrystalline diamond films. Nanometer-sized gaps down to ?1?nm are produced using a feedback-controlled current annealing procedure. The nanogaps are characterized using scanning electron microscopy and electronic transport...
journal article 2012
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