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van der Veen, J.R. (author), Valianti, S. (author), van der Zant, H.S.J. (author), Blanter, Y.M. (author), Meysman, F.J.R. (author)The recent discovery of cable bacteria has greatly expanded the known length scale of biological electron transport, as these multi-cellular bacteria are capable of mediating electrical currents across centimeter-scale distances. To enable such long-range conduction, cable bacteria embed a network of regularly spaced, parallel protein fibers...journal article 2024
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Ornago, L. (author), Zwick, Patrick (author), van der Poel, S. (author), Brandl, Thomas (author), El Abbassi, M. (author), Perrin, Mickael L. (author), Dulić, Diana (author), van der Zant, H.S.J. (author), Mayor, Marcel (author)The addition of a lateral alkyl chain is a well-known strategy to reduce π-stacked ensembles of molecules in solution, with the intention to minimize the interactions between the molecules’ backbones. In this paper, we study whether this concept generalizes to single-molecule junctions by using a combination of mechanically controllable break...journal article 2024
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Liu, Hanqing (author), Brahmi, Hatem (author), Boix-Constant, Carla (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author), Verbiest, G.J. (author)Heat transport in two dimensions is fundamentally different from that in three dimensions. As a consequence, the thermal properties of 2D materials are of great interest, from both scientific and application points of view. However, few techniques are available for the accurate determination of these properties in ultrathin suspended...journal article 2024
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Liu, Hanqing (author), Baglioni, G. (author), Boix-Constant, Carla (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author), Verbiest, G.J. (author)The high susceptibility of ultrathin two-dimensional (2D) material resonators to force and temperature makes them ideal systems for sensing applications and exploring thermomechanical coupling. Although the dynamics of these systems at high stress has been thoroughly investigated, their behavior near the buckling transition has received less...journal article 2024
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Ghasemi, Shima (author), Ornago, L. (author), Liasi, Zacharias (author), van der Poel, S. (author), Hölzel, Helen (author), Wang, Zhihang (author), van der Zant, H.S.J. (author), Lara-Avila, Samuel (author), Moth-Poulsen, Kasper (author)To achieve the ultimate limit of device miniaturization, it is necessary to have a comprehensive understanding of the structure–property relationship in functional molecular systems used in single-molecule electronics. This study reports the synthesis and characterization of a novel series of norbornadiene derivatives capped with thioether and...journal article 2023
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Bossoni, Lucia (author), Labra Muñoz, J. (author), van der Zant, H.S.J. (author), Čaluković, Vera (author), Lefering, A.J.E. (author), Egli, Ramon (author), Huber, Martina (author)Ferritin, the major iron storage protein in organisms, stores iron in the form of iron oxyhydroxide most likely involving phosphorous as a constituent, the mineral form of which is not well understood. Therefore, the question of how the ca. 2000 iron atoms in the ferritin core are magnetically coupled is still largely open. The ferritin core,...journal article 2023
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van Veen, F. (author), Ornago, L. (author), van der Zant, H.S.J. (author), El Abbassi, M. (author)Break-junction experiments are used to statistically study the electronic properties of individual molecules. The measurements consist of repeatedly breaking and merging a gold wire while measuring the conductance as a function of displacement. When a molecule is captured, a plateau is observed in the conductance traces otherwise exponentially...journal article 2023
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Pawbake, Amit S. (author), Khare, Ruchita T. (author), Island, Joshua O. (author), Flores, Eduardo (author), Ares, Jose R. (author), Sanchez, Carlos (author), Ferrer, Isabel J. (author), van der Zant, H.S.J. (author), Castellanos Gomez, A. (author)The field emission (FE) properties of TiS3 nanosheets and nanoribbons, synthesized by direct sulfuration of bulk titanium, are investigated. The nanosheets show an enhanced FE behavior with a low turn-on field of ∼0.3 V/μm, required for drawing an emission current density of ∼10 μA/cm2. Interestingly, the TiS3 nanosheet emitter delivered a...journal article 2023
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Matthiesen, M. (author), Hortensius, J.R. (author), Mañas Valero, S. (author), Kapon, Itzik (author), Siskins, M. (author), Ivanov, Boris A. (author), van der Zant, H.S.J. (author), Afanasiev, Dmytro (author), Caviglia, A. (author)Antiferromagnetic materials feature intrinsic ultrafast spin dynamics, making them ideal candidates for future magnonic devices operating at THz frequencies. A major focus of current research is the investigation of optical methods for the efficient generation of coherent magnons in antiferromagnetic insulators. In magnetic lattices endowed...journal article 2023
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Baglioni, G. (author), Pezone, R. (author), Vollebregt, S. (author), Cvetanović Zobenica, Katarina (author), Spasenović, Marko (author), Todorović, Dejan (author), Liu, Hanqing (author), Verbiest, G.J. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Microphones exploit the motion of suspended membranes to detect sound waves. Since the microphone performance can be improved by reducing the thickness and mass of its sensing membrane, graphene-based microphones are expected to outperform state-of-the-art microelectromechanical (MEMS) microphones and allow further miniaturization of the...journal article 2023
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Houmes, M.J.A. (author), Baglioni, G. (author), Siskins, M. (author), Lee, M. (author), Esteras, Dorye L. (author), Mañas Valero, S. (author), Blanter, Y.M. (author), Steeneken, P.G. (author), van der Zant, H.S.J. (author)The temperature dependent order parameter provides important information on the nature of magnetism. Using traditional methods to study this parameter in two-dimensional (2D) magnets remains difficult, however, particularly for insulating antiferromagnetic (AF) compounds. We show that its temperature dependence in AF MPS3 (M(II) = Fe, Co, Ni)...conference paper 2023
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Serati de Brito, Caique (author), Faria Junior, Paulo E. (author), Ghiasi, T.S. (author), Ingla Aynés, J. (author), Rabahi, César Ricardo (author), Cavalini, Camila (author), Mañas Valero, S. (author), Taniguchi, Takashi (author), van der Zant, H.S.J. (author)van der Waals heterostructures composed of two-dimensional (2D) transition metal dichalcogenides and vdW magnetic materials offer an intriguing platform to functionalize valley and excitonic properties in nonmagnetic TMDs. Here, we report magneto photoluminescence (PL) investigations of monolayer (ML) MoSe<sub>2</sub> on the layered A-type...journal article 2023
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Houmes, M.J.A. (author), Baglioni, G. (author), Siskins, M. (author), Lee, M. (author), Esteras, Dorye L. (author), Mañas Valero, S. (author), Blanter, Y.M. (author), Steeneken, P.G. (author), van der Zant, H.S.J. (author)The temperature dependent order parameter provides important information on the nature of magnetism. Using traditional methods to study this parameter in two-dimensional (2D) magnets remains difficult, however, particularly for insulating antiferromagnetic (AF) compounds. Here, we show that its temperature dependence in AF MPS<sub>3</sub> (M...journal article 2023
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Hsu, C. (author), Rohde, Michael (author), Borin Barin, Gabriela (author), Gandus, Guido (author), Passerone, Daniele (author), Luisier, Mathieu (author), Ruffieux, Pascal (author), Fasel, Roman (author), van der Zant, H.S.J. (author), El Abbassi, M. (author)Creating a good contact between electrodes and graphene nanoribbons (GNRs) has been a long-standing challenge in searching for the next GNR-based nanoelectronics. This quest requires the controlled fabrication of sub-20 nm metallic gaps, a clean GNR transfer minimizing damage and organic contamination during the device fabrication, as well as...journal article 2023
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Ingla Aynés, J. (author), Rigotti Manesco, A.L. (author), Ghiasi, T.S. (author), Volosheniuk, S. (author), Watanabe, Kenji (author), Taniguchi, Takashi (author), van der Zant, H.S.J. (author)We report multiterminal measurements in a ballistic bilayer graphene (BLG) channel, where multiple spin- and valley-degenerate quantum point contacts (QPCs) are defined by electrostatic gating. By patterning QPCs of different shapes along different crystallographic directions, we study the effect of size quantization and trigonal warping on...journal article 2023
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Baglioni, G. (author), Siskins, M. (author), Houmes, M.J.A. (author), Lee, M. (author), Shin, D. (author), Mañas Valero, S. (author), Coronado, Eugenio (author), Blanter, Y.M. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Magnetostrictive coupling has recently attracted interest as a sensitive method for studying magnetism in two-dimensional (2D) materials by mechanical means. However, its application in high-frequency magnetic actuators and transducers requires rapid modulation of the magnetic order, which is difficult to achieve with external magnets,...journal article 2023
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Bouwmeester, D. (author), Ghiasi, T.S. (author), Borin Barin, Gabriela (author), Müllen, Klaus (author), Ruffieux, Pascal (author), Fasel, Roman (author), van der Zant, H.S.J. (author)Atomically precise graphene nanoribbons (GNRs) are predicted to exhibit exceptional edge-related properties, such as localized edge states, spin polarization, and half-metallicity. However, the absence of low-resistance nanoscale electrical contacts to the GNRs hinders harnessing their properties in field-effect transistors. In this paper, we...journal article 2023
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Liu, Hanqing (author), Lee, M. (author), Siskins, M. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author), Verbiest, G.J. (author)Heat transport by acoustic phonons in two-dimensional (2D) materials is fundamentally different from that in 3D crystals because the out-of-plane phonons propagate in a unique way that strongly depends on tension and bending rigidity. Here, using optomechanical techniques, we experimentally demonstrate that the heat transport time in...journal article 2023
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Ghiasi, T.S. (author), Borst, M. (author), Kurdi, S. (author), Simon, B.G. (author), Bertelli, I. (author), Boix-Constant, Carla (author), Mañas Valero, S. (author), van der Zant, H.S.J. (author), van der Sar, T. (author)Magnetic imaging using nitrogen-vacancy (NV) spins in diamonds is a powerful technique for acquiring quantitative information about sub-micron scale magnetic order. A major challenge for its application in the research on two-dimensional (2D) magnets is the positioning of the NV centers at a well-defined, nanoscale distance to the target...journal article 2023
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Liu, Hanqing (author), Basuvalingam, Saravana B. (author), Lodha, S.V. (author), Bol, Ageeth A. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author), Verbiest, G.J. (author)Atomic layer deposition (ALD), a layer-by-layer controlled method to synthesize ultrathin materials, provides various merits over other techniques such as precise thickness control, large area scalability and excellent conformality. Here we demonstrate the possibility of using ALD growth on top of suspended 2D materials to fabricate...journal article 2023