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Houmes, M.J.A. (author), Mañas Valero, S. (author), Bermejillo-Seco, Alvaro (author), Coronado, Eugenio (author), Steeneken, P.G. (author), van der Zant, H.S.J. (author)Semiconducting van der Waals magnets exhibit a rich physical phenomenology with different collective excitations, as magnons or excitons, that can be coupled, thereby offering new opportunities for optoelectronic, spintronic, and magnonic devices. In contrast with the well-studied van der Waals magnets CrI<sub>3</sub> or Fe<sub>3</sub>GeTe...journal article 2023
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Kirchhof, Jan N. (author), Yu, Yuefeng (author), Yagodkin, Denis (author), Stetzuhn, Nele (author), de Araújo, Daniel B. (author), Kanellopulos, Kostas (author), Mañas Valero, S. (author), Coronado, Eugenio (author), van der Zant, H.S.J. (author)Nanomechanical spectroscopy (NMS) is a recently developed approach to determine optical absorption spectra of nanoscale materials via mechanical measurements. It is based on measuring changes in the resonance frequency of a membrane resonator vs. the photon energy of incoming light. This method is a direct measurement of absorption, which has...journal article 2023
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Nishiguchi, Katsuhiko (author), Yamaguchi, Hiroshi (author), Fujiwara, Akira (author), van der Zant, H.S.J. (author), Steele, G.A. (author)We demonstrate charge detection with single-electron resolution at high readout frequency using a silicon field-effect transistor (FET) integrated with double resonant circuits. A FET, whose channel of 10-nm width enables a single electron to be detected at room temperature, is connected to resonant circuits composed of coupled inductors and...journal article 2023
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Volosheniuk, S. (author), Bouwmeester, D. (author), Hsu, C. (author), van der Zant, H.S.J. (author), Gehring, Pascal (author)Thermocurrent flowing through a single-molecule device contains valuable information about the quantum properties of the molecular structure and, in particular, on its electronic and phononic excitation spectra and entropy. Furthermore, accessing the thermoelectric heat-to-charge conversion efficiency experimentally can help to select...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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Hsu, C. (author), Schosser, Werner M. (author), Zwick, Patrick (author), Dulic, Diana (author), Mayor, Marcel (author), Pauly, Fabian (author), van der Zant, H.S.J. (author)Intra- and intermolecular interactions are dominating chemical processes, and their concerted interplay enables complex nonequilibrium states like life. While the responsible basic forces are typically investigated spectroscopically, a conductance measurement to probe and control these interactions in a single molecule far out of equilibrium is...journal article 2022
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Hsu, C. (author), Gehring, P. (author), van der Zant, H.S.J. (author)As the miniaturization of electronics continuously progresses, harvesting and generating thermoelectric energy with high efficiency become a key concept to integrate. Theoretical studies suggest that single-molecule devices are ideal candidates for thermoelectric devices with unprecedentedly high efficiencies. Such advantage is achieved by...poster 2022
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Schosser, Werner M. (author), Hsu, C. (author), Zwick, Patrick (author), Beltako, Katawoura (author), Dulic, Diana (author), Mayor, Marcel (author), van der Zant, H.S.J. (author), Pauly, Fabian (author)The possibility to study quantum interference phenomena at ambient conditions is an appealing feature of molecular electronics. By connecting two porphyrins in a cofacial cyclophane, we create an attractive platform for mechanically controlling electric transport through the intramolecular extent of π-orbital overlap of the porphyrins facing...journal article 2022
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Lee, M. (author), Robin, M.P. (author), Guis, R.H. (author), Filippozzi, U. (author), Shin, D. (author), van Thiel, T.C. (author), Paardekooper, Stijn P. (author), Renshof, Johannes R. (author), van der Zant, H.S.J. (author), Caviglia, A. (author), Verbiest, G.J. (author), Steeneken, P.G. (author)Although 2D materials hold great potential for next-generation pressure sensors, recent studies revealed that gases permeate along the membrane-surface interface, necessitating additional sealing procedures. In this work, we demonstrate the use of free-standing complex oxides as self-sealing membranes that allow the reference cavity beneath...journal article 2022
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Hsu, C. (author), Costi, Theo A. (author), Vogel, David (author), Wegeberg, Christina (author), Mayor, Marcel (author), van der Zant, H.S.J. (author), Gehring, P. (author)Probing the universal low-temperature magnetic-field scaling of Kondo-correlated quantum dots via electrical conductance has proved to be experimentally challenging. Here, we show how to probe this in nonlinear thermocurrent spectroscopy applied to a molecular quantum dot in the Kondo regime. Our results demonstrate that the bias-dependent...journal article 2022
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Labra Muñoz, J. (author), de Reuver, Arie (author), Koeleman, Friso (author), Huber, M. (author), van der Zant, H.S.J. (author)We report on the fabrication of single-electron devices based on horse-spleen ferritin parti-cles. At low temperatures the current vs. voltage characteristics are stable, enabling the acquisition of reproducible data that establishes the Coulomb blockade as the main transport mechanism through them. Excellent agreement between the...journal article 2022
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Siskins, M. (author), Kurdi, S. (author), Lee, M. (author), Slotboom, Benjamin J.M. (author), Xing, Wenyu (author), Mañas-Valero, Samuel (author), Coronado, Eugenio (author), Jia, Shuang (author), Han, Wei (author), van der Sar, T. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Two-dimensional magnetic materials with strong magnetostriction are attractive systems for realizing strain-tuning of the magnetization in spintronic and nanomagnetic devices. This requires an understanding of the magneto-mechanical coupling in these materials. In this work, we suspend thin Cr<sub>2</sub>Ge<sub>2</sub>Te<sub>6</sub> layers...journal article 2022
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Lee, M. (author), Renshof, Johannes R. (author), van Zeggeren, K.J. (author), Houmes, M.J.A. (author), Lesne, E.L. (author), Siskins, M. (author), van Thiel, T.C. (author), Guis, R.H. (author), van Blankenstein, M.R. (author), Verbiest, G.J. (author), Caviglia, A. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Suspended piezoelectric thin films are key elements enabling high-frequency filtering in telecommunication devices. To meet the requirements of next-generation electronics, it is essential to reduce device thickness for reaching higher resonance frequencies. Here, the high-quality mechanical and electrical properties of graphene electrodes...journal article 2022
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Daaoub, Abdalghani (author), Ornago, L. (author), Vogel, David (author), Bastante, Pablo (author), Sangtarash, Sara (author), Parmeggiani, Matteo (author), Kamer, Jerry (author), van der Zant, H.S.J. (author), Sadeghi, Hatef (author)Controlling charge transport through molecules is challenging because it requires engineering of the energy of molecular orbitals involved in the transport process. While side groups are central to maintaining solubility in many molecular materials, their role in modulating charge transport through single-molecule junctions has received less...journal article 2022
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Van Veen, Frederik H. (author), Ornago, L. (author), van der Zant, H.S.J. (author), El Abbassi, M. (author)Alkanes serve an important role as benchmark system in molecular electronics. However, a large variation in the conductance values is reported in the literature. To better understand these fluctuations, in this study we measure large molecular data sets (up to 100 000 breaking traces) of a series of alkanes with different lengths and...journal article 2022
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Baum, T.Y. (author), Fernández, Saleta (author), Peña, Diego (author), van der Zant, H.S.J. (author)Polycyclic aromatic hydrocarbons radicals are organic molecules with a nonzero total magnetic moment. Here, we report on charge-transport experiments with bianthracene-based radicals using a mechanically controlled break junction technique at low temperatures (6 K). The conductance spectra demonstrate that the magnetism of the diradical is...journal article 2022
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Kuppusamy, Senthil Kumar (author), Mizuno, Asato (author), García-Fuente, Amador (author), van der Poel, S. (author), Heinrich, Benoît (author), Ferrer, Jaime (author), van der Zant, H.S.J. (author), Ruben, Mario (author)Spin-crossover (SCO) active iron(II) complexes are an integral class of switchable and bistable molecular materials. Spin-state switching properties of the SCO complexes have been studied in the bulk and single-molecule levels to progress toward fabricating molecule-based switching and memory elements. Supramolecular SCO complexes featuring...journal article 2022
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Ornago, L. (author), Kamer, Jerry (author), El Abbassi, M. (author), Grozema, F.C. (author), van der Zant, H.S.J. (author)Switching effects are key elements in the design and characterization of nanoscale molecular electronics systems. They are used to achieve functionality through the transition between different conducting states. In this study, we analyze the presence of switching events in reference molecular systems, which are not designed to have switching...journal article 2022
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Wang, Y. (author), McCandless, Gregory T. (author), Wang, Xiaoping (author), Thanabalasingam, Kulatheepan (author), Wu, H. (author), Bouwmeester, D. (author), van der Zant, H.S.J. (author), Ali, M.N. (author), Chan, C.L. (author)The Kagome lattice is an important fundamental structure in condensed matter physics for investigating the interplay of electron correlation, topology, and frustrated magnetism. Recent work on Kagome metals in the AV3Sb5 (A = K, Rb, and Cs) family has shown a multitude of correlation-driven distortions, including symmetry breaking charge...journal article 2022
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Hsu, C. (author), Reznikova, Ksenia (author), Schosser, Werner M. (author), Gallego, Almudena (author), Beltako, Katawoura (author), Pauly, Fabian (author), van der Zant, H.S.J. (author), Mayor, Marcel (author)Quantum interference (QI) within a single-molecule junction has become an essential yet powerful concept to integrate for designing molecular electronic devices.1 Recently we have investigated the correlation between substitution pattern, conductance and mechanosensitivity in [2.2]paracyclophane(PCP)-based single-molecule junction via the...poster 2021