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Frisenda, Riccardo (author), Sanchez-Santolino, Gabriel (author), Papadopoulos, N. (author), Urban, Joanna (author), Baranowski, Michal (author), Surrente, Alessandro (author), Maude, Duncan K. (author), Garcia-Hernandez, Mar (author), van der Zant, H.S.J. (author)Franckeite is a naturally occurring layered mineral with a structure composed of alternating stacks of SnS2-like and PbS-like layers. Although this superlattice is composed of a sequence of isotropic two-dimensional layers, it exhibits a spontaneous rippling that makes the material structurally anisotropic. We demonstrate that this rippling...journal article 2020
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Roslon, I.E. (author), Dolleman, R.J. (author), Licona, H. (author), Lee, M. (author), Siskins, M. (author), Lebius, H. (author), Madauß, L. (author), Schleberger, M. (author), Alijani, F. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Porous, atomically thin graphene membranes have interesting properties for filtration and sieving applications. Here, graphene membranes are used to pump gases through nanopores using optothermal forces, enabling the study of gas flow through nanopores at frequencies above 100 kHz. At these frequencies, the motion of graphene is closely...journal article 2020
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Liu, Yuru (author), Ornago, L. (author), Carlotti, Marco (author), Ai, Yong (author), El Abbassi, M. (author), Soni, Saurabh (author), Asyuda, Andika (author), Zharnikov, Michael (author), van der Zant, H.S.J. (author), Chiechi, Ryan C. (author)This paper describes the conductance of single-molecules and self-assembled monolayers comprising an oligophenyleneethynylene core, functionalized with acenes of increasing length that extend conjugation perpendicular to the path of tunneling electrons. In the Mechanically Controlled Break Junction (MCBJ) experiment, multiple conductance...journal article 2020
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Perrin, M.L. (author), Eelkema, R. (author), Thijssen, J.M. (author), Grozema, F.C. (author), van der Zant, H.S.J. (author)In recent years, a wide range of single-molecule devices has been realized, enabled by technological advances combined with the versatility offered by synthetic chemistry. In particular, single-molecule diodes have attracted significant attention with an ongoing effort to increase the rectification ratio between the forward and reverse...review 2020
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Ghasemi, Foad (author), Frisenda, Riccardo (author), Flores, Eduardo (author), Papadopoulos, N. (author), Biele, Robert (author), de Lara, David Perez (author), van der Zant, H.S.J. (author), Watanabe, Kenji (author), Castellanos-Gomez, Andres (author)In two-dimensional materials research, oxidation is usually considered as a common source for the degradation of electronic and optoelectronic devices or even device failure. However, in some cases a controlled oxidation can open the possibility to widely tune the band structure of 2D materials. In particular, we demonstrate the controlled...journal article 2020
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Dolleman, R.J. (author), Verbiest, G.J. (author), Blanter, Y.M. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Recent theory has predicted large temperature differences between the in-plane [longitudinal (LA) and transverse (TA)] and out-of-plane [flexural (ZA)] acoustic phonon baths in locally heated suspended graphene. To verify these predictions, and their implications for understanding the nonequilibrium thermodynamics of two-dimensional (2D)...journal article 2020
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Papadopoulos, N. (author), Gehring, P. (author), Watanabe, Kenji (author), Taniguchi, Takashi (author), van der Zant, H.S.J. (author), Steele, G.A. (author)In transition metal dichalcogenides, defects have been found to play an important role, affecting doping, spin-valley relaxation dynamics, and assisting in proximity effects of spin-orbit coupling. Here we study localized states in WS2 and how they affect tunneling through van der Waals heterostructures of h-BN/graphene/ WS2/metal. The...journal article 2020
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Siskins, M. (author), Lee, M. (author), Mañas-Valero, Samuel (author), Coronado, Eugenio (author), Blanter, Y.M. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)The reduced dimensionality of two-dimensional (2D) materials results in characteristic types of magnetically and electronically ordered phases. However, only few methods are available to study this order, in particular in ultrathin insulating antiferromagnets that couple weakly to magnetic and electronic probes. Here, we demonstrate that...journal article 2020
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Siskins, M. (author), Lee, M. (author), Wehenkel, D. (author), van Rijn, R. (author), de Jong, Tijmen W. (author), Renshof, Johannes R. (author), Hopman, Berend C. (author), Peters, Willemijn S.J.M. (author), Davidovikj, D. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)The high flexibility, impermeability and strength of graphene membranes are key properties that can enable the next generation of nanomechanical sensors. However, for capacitive pressure sensors, the sensitivity offered by a single suspended graphene membrane is too small to compete with commercial sensors. Here, we realize highly sensitive...journal article 2020
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Zwick, Patrick (author), Hsu, C. (author), El Abbassi, M. (author), Fuhr, Olaf (author), Fenske, Dieter (author), Dulic, D. (author), van der Zant, H.S.J. (author), Mayor, Marcel (author)Porphyrin cyclophane 1, consisting of two rigidly fixed but still movable cofacial porphyrins and exposing acetate-masked thiols in opposed directions of the macrocycle, is designed, synthesized, and characterized. The functional cyclophane 1, as pioneer of mechanosensitive 3D materials, forms stable single-molecule junctions in a...journal article 2020
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Caneva, S. (author), Hermans, Matthijs (author), Lee, M. (author), García-Fuente, Amador (author), Watanabe, Kenji (author), Taniguchi, Takashi (author), Dekker, C. (author), Ferrer, Jaime (author), van der Zant, H.S.J. (author), Gehring, P. (author)Graphene quantum dots (QDs) are intensively studied as platforms for the next generation of quantum electronic devices. Fine tuning of the transport properties in monolayer graphene QDs, in particular with respect to the independent modulation of the tunnel barrier transparencies, remains challenging and is typically addressed using...journal article 2020
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Groenendijk, D.J. (author), Manca, N. (author), de Bruijckere, J. (author), Monteiro, Ana Mafalda R.V.L. (author), Gaudenzi, R. (author), van der Zant, H.S.J. (author), Caviglia, A. (author)SrIrO <sub>3</sub>, the three-dimensional member of the Ruddlesden–Popper iridates, is a paramagnetic semimetal characterised by a the delicate interplay between spin–orbit coupling and Coulomb repulsion. In this work, we study the anisotropic magnetoresistance (AMR) of SrIrO <sub>3</sub> thin films, which is closely linked to spin–orbit...journal article 2020
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Davidovikj, D. (author), Groenendijk, D.J. (author), Monteiro, A. M.R.V.L. (author), Dijkhoff, A. (author), Afanasiev, D. (author), Siskins, M. (author), van der Zant, H.S.J. (author), Caviglia, A. (author), Steeneken, P.G. (author)Complex oxide thin films and heterostructures exhibit a variety of electronic phases, often controlled by the mechanical coupling between film and substrate. Recently it has become possible to isolate epitaxially grown single-crystalline layers of these materials, enabling the study of their properties in the absence of interface effects. In...journal article 2020
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Lemme, Max C. (author), Wagner, Stefan (author), Lee, Kangho (author), Fan, Xuge (author), Verbiest, G.J. (author), Wittmann, Sebastian (author), Lukas, Sebastian (author), Dolleman, R.J. (author), Niklaus, Frank (author), van der Zant, H.S.J. (author), Duesberg, Georg S. (author), Steeneken, P.G. (author)The unique properties and atomic thickness of two-dimensional (2D) materials enable smaller and better nanoelectromechanical sensors with novel functionalities. During the last decade, many studies have successfully shown the feasibility of using suspended membranes of 2D materials in pressure sensors, microphones, accelerometers, and mass...review 2020
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Mazaheri, Ali (author), Lee, M. (author), van der Zant, H.S.J. (author), Frisenda, Riccardo (author), Castellanos Gomez, A. (author)We fabricate paper-supported semiconducting devices by rubbing a layered molybdenum disulfide (MoS2) crystal onto a piece of paper, similar to the action of drawing/writing with a pencil on paper. We show that the abrasion between the MoS2 crystal and the paper substrate efficiently exfoliates the crystals, breaking the weak van der Waals...journal article 2020
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Mishra, K. K. (author), Ravindran, T. R. (author), Island, J.O. (author), Flores, Eduardo (author), Ares, Jose Ramon (author), Sanchez, Carlos (author), Ferrer, Isabel J. (author), van der Zant, H.S.J. (author), Castellanos-Gomez, Andres (author)Two-dimensional layered trichalcogenide materials have recently attracted the attention of the scientific community because of their robust mechanical and thermal properties and applications in opto- and nanoelectronics devices. We report the pressure dependence of out-of-plane Ag Raman modes in high quality few-layer titanium trisulfide ...journal article 2020
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Dulic, D. (author), Rates Soriano, A. (author), Castro, Edison (author), Labra Muñoz, J. (author), Aravena, Daniel (author), Etcheverry-Berrios, Alvaro (author), Riba-López, Daniel (author), Aliaga-Alcalde, Núria (author), van der Zant, H.S.J. (author)We present experimental and theoretical studies of single-molecule conductance through nonplanar fullerocurcuminoid molecular dyads in ambient conditions using the mechanically controllable break junction technique. We show that molecular dyads with bare fullerenes form configurations with conductance features related to different transport...journal article 2019
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Hsu, C. (author), Stefani, D. (author), Weiland, Kevin J. (author), Skripnik, Maxim (author), Perrin, M.L. (author), Mayor, Marcel (author), Pauly, Fabian (author), van der Zant, H.S.J. (author)A great interest of molecular electronics comes from its change in electronic structure through external stimuli, which provides functionality at the single-molecule level. Mechanically-controlled break junction (MCBJ) is a great tool for characterizing molecular properties and their response to different stimuli including light, solvent and...poster 2019
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Zotti, Linda A. (author), Bednarz, Beatrice (author), Hurtado-Gallego, Juan (author), Cabosart, D.C.N. (author), Rubio-Bollinger, Gabino (author), Agrait, Nicolas (author), van der Zant, H.S.J. (author)We studied the electron-transport properties of ten different amino acids and one dimer (di-methionine) using the mechanically controlled break-junction (MCBJ) technique. For methionine and cysteine, additional measurements were performed with the scanning tunneling microscope break-junction (STM-BJ) technique. By means of a statistical...journal article 2019
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Zalom, Peter (author), de Bruijckere, J. (author), Gaudenzi, Rocco (author), van der Zant, H.S.J. (author), Novotný, Tomáš (author), Korytár, Richard (author)We investigate theoretically and experimentally the singlet-triplet Kondo effect induced by a magnetic field in a molecular junction. Temperature-dependent conductance, G(T), is calculated by the numerical renormalization group, showing a strong imprint of the relevant low-energy scales, such as the Kondo temperature, exchange, and singlet...journal article 2019