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Electrical and mechanical magnetization torques

Kovalev, A.A. (author)

Only charge degree of freedom is utilized in most electronic devices. The use of the spin degree of freedom is relatively recent. The discovery of the Giant Magnetoresistance (GMR) effect initiated the development of magnetoelectronics - the field that studies effects on electron transport involving the spin degree of freedom. GMR is a very...

doctoral thesis 2006

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Carbon nanotube quantum dots

Sapmaz, S. (author)

Low temperature electron transport measurements on individual single wall carbon nanotubes are described in this thesis. Carbon nanotubes are small hollow cylinders made entirely out of carbon atoms. At low temperatures (below ~10 K) finite length nanotubes form quantum dots. Because of its small size a quantum dot has a discrete set of energy...

doctoral thesis 2006

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Mechanical systems at the nanoscale

Poot, M. (author)

This thesis describes experiments that were done with a wide range of nano(electro)mechanical systems (NEMS). These devices are promising candidates to study mechanics in the quantum regime. The experiments range from AFM measurements on few-layer graphene nanodrums, electrical detection of flexural modes of suspended carbon nanotubes both at...

doctoral thesis 2009

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Josephson effects in carbon nanotube mechanical resonators and graphene

Keijzers, C.J.H. (author)

doctoral thesis 2012

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On the Fabrication of a Graphene Resonator and Detection of the Resonance via Electrical Read-out: Towards a graphene permeability measurement

Willems, L.M. (author)

Not available because of confidentiallity

master thesis 2013

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Suspended carbon nanotubes coupled to superconducting circuits

Schneider, B.H. (author)

Carbon nanotubes are unique candidates to study quantum mechanical properties of a nanomechanical resonator. However to access this quantum regime, present detectors are not yet sensitive enough. In this thesis we couple a carbon nanotube CNT mechanical resonator to a superconducting circuit which is a root towards such sensitivity.

doctoral thesis 2014

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Nanoscale mechanical resonators and oscillators

Van Leeuwen, R. (author)

In this thesis the physics of nanoscale mechanical resonators and oscillators is studied. We discuss two types of resonators. First, a top-down fabricated doubly clamped beam resonator with an integrated piezoelectric actuator is introduced. The second type of resonators are based on layered two-dimensional materials, such as graphene and...

doctoral thesis 2015

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Static capacitive pressure sensing using a single graphene drumg

Davidovikj, D. (author), Scheepers, P.H. (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)

To realize nanomechanical graphene-based pressure sensors, it is beneficial to have a method to electrically readout the static displacement of a suspended graphene membrane. Capacitive readout, typical in micro-electromechanical systems, gets increasingly challenging as one starts shrinking the dimensions of these devices because the expected...

journal article 2017

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Graphene gas pumps

Davidovikj, D. (author), Bouwmeester, Damian (author), van der Zant, H.S.J. (author), Steeneken, P.G. (author)

We report on the development of a pneumatically coupled graphene membrane system, comprising of two circular cavities connected by a narrow trench. Both cavities and the trench are covered by a thin few-layer graphene membrane to form a sealed dumbbell-shaped chamber. Local electrodes at the bottom of each cavity allow for actuation of each...

journal article 2018

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Two-dimensional membranes in motion

Davidovikj, D. (author)

This thesis revolves around nanomechanical membranes made of suspended two - dimensional materials. Chapters 1-3 give an introduction to the field of 2D-based nanomechanical devices together with an overview of the underlying physics and the measurementtools used in subsequent chapters. The research topics that are discussed can bedivided into...

doctoral thesis 2018

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Dynamics of interacting graphene membranes

Dolleman, R.J. (author)

Micro and nanomechanical sensors are indispensable in modern consumer electronics, automotive and medical industries. Gas pressure sensors are currently the most widespread membrane-based micromechanical sensors. By reducing their size, their unit costs and energy consumption drops, making them more attractive for integration in new applications...

doctoral thesis 2018

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The emergence of dissipation dilution: in doubly clamped nanomechanical resonators

van der Zalm, Joost (author)

The goal of the research described in this thesis was to investigate the basis of dissipation dilution as well as make it comprehensible. In the written literature we could find that the kinetic energy of an oscillating beam is stored into two types of potential energy~\cite{Kippenberg, Kotthaus}. A dissipative bending component and a...

bachelor thesis 2019

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Mechanical resonance properties of porous graphene membrane; simulation study and proof of concept experiment

Yoon, Juhee (author), Kwon, Min Hee (author), Shin, D. (author), Lee, Sang Wook (author)

Mechanical resonance properties of porous graphene resonators were investigated by simulation studies. The finite element method was utilized to design the porous graphene membrane pattern and to calculate the mechanical resonance frequency and quality factor. The changes in the resonance frequency and quality factor were systematically...

journal article 2021

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Mechanical characterization of nanopillars by atomic force microscopy

Angeloni, L. (author), Ganjian, M. (author), Nouri Goushki, M. (author), Mirzaali, Mohammad J. (author), Hagen, C.W. (author), Zadpoor, A.A. (author), Fratila-Apachitei, E.L. (author), Ghatkesar, M.K. (author)

Micro- and nano-patterns are gaining increasing attraction in several fields ranging from nanoelectronics to bioengineering. The mechanical properties of the nanostructures (nanopillars, nanotubes, nanowires, etc.) are highly relevant for many applications but challenging to determine. Existing mechanical characterization methods require...

journal article 2021

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Influence of Mode-Coupling on Q-factor in Nanomechanical Resonators

ten Wolde, Malte (author)

Nanomechanical resonators with low dissipation rates are ideal tools in fundamental science applications. They have been used in the field of cavity optomechanics for example in ground-state cooling, and in sensing applications, such as atomic resolution mass sensors. Their great sensitivity is due to their high Q-factor, which is a metric that...

master thesis 2021

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Applied and fundamental studies of vibrating 2D membranes

Lee, M. (author)

This thesis encompasses both applied and fundamental studies of suspended van der Waals materials. Chapters 1 and 2 give an introduction to the field of 2D materials and some of the critical methods which facilitate the study of the suspended structures. In Chapters 3 and 4 we focus on the applications of graphene in barometric pressure sensors...

doctoral thesis 2021

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Higher-order phenomena in nanomechanics of two-dimensional material membranes

Siskins, M. (author)

This thesis studies higher-order material properties* and effects in van der Waals crystals, such as anisotropic Young’s modulus, magnetostriction, and non-trivial thermal expansion effects near magnetic and electronic phase transitions, that can affect the nanomechanical motion ofmultilayer two-dimensional (2D) material membranes. These...

doctoral thesis 2021

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Self-Sealing Complex Oxide Resonators

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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Nonlinear dynamic atomic force microscopy

Chandrashekar, A. (author)

Most physical phenomena be it mechanical, chemical or biological are inherently nonlinear in nature. In fact, it is the linear phenomenon that is the exception rather than the rule. By harnessing these nonlinearities one can obtain far greater information about the underlying physics and develop more sensitive and efficient devices. This is...

doctoral thesis 2022

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Magnetic order in 2D antiferromagnets disclosed by spontaneous anisotropic magnetostriction

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