- document
-
Afanasiev, D. (author), Hortensius, J.R. (author), Matthiesen, M. (author), Siskins, M. (author), Lee, M. (author), Lesne, E.L. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author), Ivanov, B. (author), Caviglia, A. (author)Van der Waals magnets provide an ideal playground to explore the fundamentals of low-dimensional magnetism and open opportunities for ultrathin spin-processing devices. The Mermin-Wagner theorem dictates that as in reduced dimensions isotropic spin interactions cannot retain long-range correlations, the long-range spin order is stabilized by...journal article 2021
- document
-
Siskins, M. (author), Sokolovskaya, E. (author), Lee, M. (author), Mañas-Valero, Samuel (author), Davidovikj, D. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Coupled nanomechanical resonators made of two-dimensional materials are promising for processing information with mechanical modes. However, the challenge for these systems is to control the coupling. Here, we demonstrate strong coupling of motion between two suspended membranes of the magnetic 2D material FePS3. We describe a tunable...journal article 2021
- document
-
Steeneken, P.G. (author), Dolleman, R.J. (author), Davidovikj, D. (author), Alijani, F. (author), van der Zant, H.S.J. (author)The dynamics of suspended two-dimensional (2D) materials has received increasing attention during the last decade, yielding new techniques to study and interpret the physics that governs the motion of atomically thin layers. This has led to insights into the role of thermodynamic and nonlinear effects as well as the mechanisms that govern...review 2021
- document
-
Stefani, D. (author), Guo, Cunlan (author), Ornago, L. (author), Cabosart, D.C.N. (author), El Abbassi, M. (author), Sheves, Mordechai (author), Cahen, David (author), van der Zant, H.S.J. (author)We report on charge transport across single short peptides using the Mechanically Controlled Break Junction (MCBJ) method. We record thousands of electron transport events across single-molecule junctions and with an unsupervised machine learning algorithm, we identify several classes of traces with multifarious conductance values that may...journal article 2021
- document
-
Keşkekler, A. (author), Shoshani, Oriel (author), Lee, M. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author), Alijani, F. (author)Mechanical sources of nonlinear damping play a central role in modern physics, from solid-state physics to thermodynamics. The microscopic theory of mechanical dissipation suggests that nonlinear damping of a resonant mode can be strongly enhanced when it is coupled to a vibration mode that is close to twice its resonance frequency. To date,...journal article 2021
- document
-
Zhang, Wenliang (author), Zhao, Qinghua (author), Munuera, Carmen (author), Lee, M. (author), Flores, Eduardo (author), van der Zant, H.S.J. (author), Wang, Tao (author), Frisenda, Riccardo (author), Castellanos-Gomez, Andres (author)Paper holds the promise to replace silicon substrates in applications like internet of things or disposable electronics that require ultra-low-cost electronic components and an environmentally friendly electronic waste management. In the last years, spurred by the abovementioned properties of paper as a substrate and the exceptional...journal article 2021
- document
-
Lee, M. (author), Siskins, M. (author), Mañas-Valero, Samuel (author), Coronado, Eugenio (author), Steeneken, P.G. (author), van der Zant, H.S.J. (author)The charge density wave (CDW) state in van der Waals systems shows interesting scaling phenomena as the number of layers can significantly affect the CDW transition temperature, T<sub>CDW</sub>. However, it is often difficult to use conventional methods to study the phase transition in these systems due to their small size and sensitivity to...journal article 2021
- document
-
Pyurbeeva, Eugenia (author), Hsu, C. (author), Vogel, David (author), Wegeberg, Christina (author), Mayor, Marcel (author), van der Zant, H.S.J. (author), Mol, Jan A. (author), Gehring, P. (author)Single molecules are nanoscale thermodynamic systems with few degrees of freedom. Thus, the knowledge of their entropy can reveal the presence of microscopic electron transfer dynamics that are difficult to observe otherwise. Here, we apply thermocurrent spectroscopy to directly measure the entropy of a single free radical molecule in a...journal article 2021
- document
-
Dolleman, R.J. (author), Chakraborty, Debadi (author), Ladiges, Daniel R. (author), van der Zant, H.S.J. (author), Sader, John E. (author), Steeneken, P.G. (author)The resonance frequency of membranes depends on the gas pressure due to the squeeze-film effect, induced by the compression of a thin gas film that is trapped underneath the resonator by the high-frequency motion. This effect is particularly large in low-mass graphene membranes, which makes them promising candidates for pressure-sensing...journal article 2021
- document
-
Reznikova, Ksenia (author), Hsu, C. (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) of electron waves passing through a single-molecule junction provides a powerful means to influence its electrical properties. Here, we investigate the correlation between substitution pattern, conductance, and mechanosensitivity in [2.2]paracyclophane (PCP)-based molecular wires in a mechanically controlled break...journal article 2021
- document
-
Zwick, Patrick (author), Dulić, Diana (author), van der Zant, H.S.J. (author), Mayor, Marcel (author)Direct measurement of single-molecule electrical transparency by break junction experiments has become a major field of research over the two last decades. This review specifically and comprehensively highlights the use of porphyrins as molecular components and discusses their potential use for the construction of future devices. Throughout...review 2021
- document
-
López-Cabrelles, Javier (author), Mañas-Valero, Samuel (author), Vitórica-Yrezábal, Iñigo J. (author), Siskins, M. (author), Lee, M. (author), Steeneken, P.G. (author), van der Zant, H.S.J. (author), Mínguez Espallargas, Guillermo (author), Coronado, Eugenio (author)Through rational chemical design, and thanks to the hybrid nature of metal-organic frameworks (MOFs), it is possible to prepare molecule-based 2D magnetic materials stable at ambient conditions. Here, we illustrate the versatility of this approach by changing both the metallic nodes and the ligands in a family of layered MOFs that allows the...journal article 2021
- document
-
Romijn, J. (author), Dolleman, R.J. (author), Singh, M. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author), Sarro, Pasqualina M (author), Vollebregt, S. (author)The operating principle of Pirani pressure sensors is based on the pressure dependence of a suspended strip's electrical conductivity, caused by the thermal conductance of the surrounding gas which changes the Joule heating of the strip. To realize such sensors, not only materials with high temperature dependent electrical conductivity are...journal article 2021
- document
-
Gehring, P. (author), Sowa, Jakub K. (author), Hsu, C. (author), de Bruijckere, J. (author), van der Star, Martijn (author), Le Roy, Jennifer J. (author), Bogani, Lapo (author), Gauger, Erik M. (author), van der Zant, H.S.J. (author)Theoretical studies suggest that mastering the thermocurrent through single molecules can lead to thermoelectric energy harvesters with unprecedentedly high efficiencies.<sup>1–6</sup> This can be achieved by engineering molecule length,<sup>7</sup> optimizing the tunnel coupling strength of molecules via chemical anchor groups<sup>8</sup> or...journal article 2021
- document
-
El Abbassi, M. (author), Overbeck, Jan (author), Braun, Oliver (author), Calame, Michel (author), van der Zant, H.S.J. (author), Perrin, M.L. (author)Unsupervised machine learning, and in particular data clustering, is a powerful approach for the analysis of datasets and identification of characteristic features occurring throughout a dataset. It is gaining popularity across scientific disciplines and is particularly useful for applications without a priori knowledge of the data structure....journal article 2021
- document
-
Azpeitia, Jon (author), Frisenda, Riccardo (author), Lee, M. (author), Bouwmeester, D. (author), Zhang, Wenliang (author), Mompean, Federico (author), van der Zant, H.S.J. (author), Garcia-Hernandez, Mar (author), Castellanos-Gomez, Andres (author)Paper has the potential to dramatically reduce the cost of electronic components. In fact, paper is 10 000 times cheaper than crystalline silicon, motivating the research to integrate electronic materials on paper substrates. Among the different electronic materials, van der Waals materials are attracting the interest of the scientific...journal article 2021
- document
-
Dolleman, R.J. (author), Katan, A.J. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)Semi-permeable membranes are important elements in water purification and energy generation applications, for which the atomic thickness and strength of graphene can enhance efficiency and permeation rate while maintaining good selectivity. Here, we show that an osmotic pressure difference forms across a suspended graphene membrane as a...journal article 2021
- document
-
Dolleman, R.J. (author), Blanter, Y.M. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author), Verbiest, G.J. (author)Recent experiments have shown surprisingly large thermal time constants in suspended graphene ranging from 10 to 100 ns in drums with a diameter ranging from 2 to 7 μm. The large time constants and their scaling with diameter points toward a thermal resistance at the edge of the drum. However, an explanation of the microscopic origin of this...journal article 2020
- document
-
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
- document
-
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