Searched for: subject%3A%22Phase%255C+transition%22
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Mutu, H. (author)
The purpose of work presented in this thesis is to investigate whether M5XB2 (M = Fe, Mn,V, Cr and X = Si, P) material system has potential as a room-temperature magnetocaloric application material by studying its crystal and magnetic structure, and magnetocaloric properties.
doctoral thesis 2024
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Ojiyed, Hamutu (author), van den Berg, Maarten (author), Batashev, I. (author), Shen, Q. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The magnetocaloric properties of Mn<sub>5</sub>Si<sub>1-x</sub>P<sub>x</sub>B<sub>2</sub> (0 ≤ x ≤ 1) compounds were studied for energy harvesting applications. The crystal structure and the magnetic structure were characterized by powder X-Ray Diffraction and powder Neutron Diffraction. The results indicate that these magnetocaloric...
journal article 2024
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Spring, H. (author)
The study of crystalline solids and condensed matter physics at large concerns itself with the new behaviors and phases of matter exhibited by elementary particles, atoms, and molecules by virtue of being assembled into a structure. These phases arise from complex microscopic behaviors, which makes it is difficult to establish rigorous...
doctoral thesis 2023
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Keşkekler, A. (author)
Micro and nanomechanical resonators are essential to the state-of-the-art communication, data processing, timekeeping, and sensing systems. The discovery of graphene and other two-dimensional (2D) materials has been a profound source of inspiration for the next generation of these devices, owing to their exceptional mechanical, electrical, and...
doctoral thesis 2023
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Kiecana, A. (author)
The growing demand for energy highlights the need for developing more efficient and environmentally friendly technologies. Magnetic cooling based on the magnetocaloric effect is a promising alternative for compressor-based refrigeration. Among various magnetocaloric materials, Mn-based alloys appear especially attractive due to their low cost,...
doctoral thesis 2023
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Zhang, F. (author), Smits, Sebastian (author), Kiecana, A. (author), Batashev, I. (author), Shen, Q. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The influence of doping with the 5d transition metal W has been studied in the quaternary (Mn,Fe)<sub>2</sub>(P,Si) based giant magnetocaloric compounds, which is one of the most promising systems for magnetic refrigeration. It is found that W substitution can separately decrease the Curie temperature T<sub>C</sub> and retain the thermal...
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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Kurahashi, Setsuya (author), Chappin, E.J.L. (author), Jager, Wander (author), Takahashi, Hiroshi (author)
contribution to periodical 2023
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Shen, Q. (author), Batashev, I. (author), Zhang, F. (author), Ojiyed, Hamutu (author), Dugulan, A.I. (author), van Dijk, N.H. (author), Brück, E.H. (author)
The transition-metal based Laves phase materials represent an extended family of alloys with rich and fascinating physical properties. In this work, we have investigated the negative thermal expansion and magnetocaloric effect in arc-melted and melt-spun Fe<sub>2</sub>Hf<sub>1-</sub><sub>x</sub>Ti<sub>x</sub> (x = 0.15, 0.27, 0.30, 0.33, 0.36...
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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Fluttert, Bob (author)
The Intergovernmental Panel on Climate Change (IPCC) believes that multiple solutions must be deployed simultaneously to reduce the emission of greenhouse gases into the atmosphere. Carbon, Capture &amp; Storage (CCS) is an unavoidable technique within this portfolio as an intermediate solution. CCS requires transport of CO<sub>2</sub> through...
master thesis 2022
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Zhang, F. (author)
Solid‐state caloric effects as intrinsic responses from different physical external stimuli (magnetic‐, uniaxial stress‐, pressure‐ and electronic‐ fields) have been evaluated near magnetic phase transformations. In the last decades the magnetically driven caloric changes in various magnetocaloric materials (MCMs) have been exploited extensively...
doctoral thesis 2022
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van der Niet, Sjoerd (author)
The Curie-Weiss model is a simplification of the Ising model to show the existence of a phase transition for ferromagnetism. In this thesis, we study the behaviour of sums of these dependent variables. We prove in general that under the appropriate assumptions, we can still conclude a version of the Law of Large Numbers. We also find that if...
bachelor thesis 2022
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Koeze, D.J. (author)
This thesis considers the mechanical properties of amorphous solids such as foams, emulsions, and granular media. Each of these systems consists of “particles” (bubbles, droplets, grains) in a dense, disordered structure. As a system is compressed, it eventually forms enough contacts between particles that it can support a load, including...
doctoral thesis 2022
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Zhang, F. (author), Taake, Chris (author), Huang, B. (author), You, X. (author), Ojiyed, Hamutu (author), Shen, Q. (author), Dugulan, A.I. (author), Caron, Luana (author), van Dijk, N.H. (author), Brück, E.H. (author)
In the field of nanoscale magnetocaloric materials, novel concepts like micro-refrigerators, thermal switches, microfluidic pumps, energy harvesting devices and biomedical applications have been proposed. However, reports on nanoscale (Mn,Fe)<sub>2</sub>(P,Si)-based materials, which are one of the most promising bulk materials for solid-state...
journal article 2022
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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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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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Zhang, Xiang (author)
Originated from the electron’s intrinsic angular momentum, magnetism has endowed various manipulations in both macroscopic and microscopic setups with another degree of freedom. Beyond the traditionally developed usage such as storage and sensors, there are enormous applications based on engineering and integrating magnetism into...
doctoral thesis 2021
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van Giessen, Femke (author)
Intersections are the bottleneck of traffic flow. Vehicle-actuated control improved the delay at an intersection by making the green phase variable based on the presence of vehicles as measured by detector loops. The duration of the yellow and red phase remains fixed times because intentions of specific human-driven vehicles (HDVs) are unknown,...
master thesis 2021
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Fuchs, Elmar C. (author), Woisetschläger, Jakob (author), Wexler, Adam D. (author), Pecnik, Rene (author), Vitiello, Giuseppe (author)
A horizontal electrohydrodynamic (EHD) liquid bridge (also known as a “floating water bridge”) is a phenomenon that forms when high voltage DC (kV·cm<sup>-1</sup>) is applied to pure water in two separate beakers. The bridge, a free-floating connection between the beakers, acts as a cylindrical lens and refracts light. Using an...
journal article 2021
Searched for: subject%3A%22Phase%255C+transition%22
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