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This thesis demonstrates that an ultralow temperature refrigeration technique called "demagnetisation refrigeration" can be miniaturised and incorporated onto millimeter-sized chips to cool nanoelectronic circuits, devices and materials. Until recently, the lowest temperature ever reached in such systems was around 4 millikelvin. Here, a temperature of 1.2mK is reported in a nanoelectronic device. The thesis introduces the idea that on-chip demagnetization refrigeration can be used to cool a wide variety of nanostructures and devices to microkelvin temperatures. This brings the exciting possibility of discovering new physics, such as exotic electronic phases, in an unexplored regime and the potential to improve the performance of existing applications, including solid-state quantum technologies. Since the first demonstration of on-chip demagnetization refrigeration, described here, the technique has been taken up by other research groups around the world. The lowest on-chip temperature is currently 0.4mK. Work is now underway to adapt the technique to cool other materials and devices, ultimately leading to a platform to study nanoscale materials, devices and circuits at microkelvin temperatures. .

Low temperature physics. --- Low temperatures. --- Materials science. --- Solid state physics. --- Low Temperature Physics. --- Materials Science, general. --- Solid State Physics. --- Physics --- Solids --- Material science --- Physical sciences --- Cryogenics --- Low temperature physics --- Temperatures, Low --- Temperature --- Cold --- Adiabatic demagnetization. --- Electron temperature. --- Low temperature engineering. --- Cryogenic engineering --- Engineering --- Low temperatures --- Demagnetization, Adiabatic --- Magnetic cooling --- Cooling

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The collection of articles discussed above covers various types of discharges and various processes. The discharges presented include, for example, microwave, spark, glow or surface discharges. The characterizations of the sources of these discharges, the parameters of the generated plasmas as well as the applications of these plasmas are discussed. The applications include, for example, the synthesis of nanoparticles or the treatment of skin cancer cells. I hope that the presented articles will be valuable for readers representing the world of science, medicine and technology.

Research & information: general --- Biology, life sciences --- Biochemistry --- surface discharge --- epoxy resin --- electronegative gas --- high-voltage power equipment --- diffusion welding --- plasma --- glow discharge --- surface treatment --- plasma techniques --- spark discharge --- nanoparticle synthesis --- silver electrodes --- electrodes asymmetry --- vortex break down --- plasma swirl injector --- dielectric barrier discharge --- swirling flow control --- melanoma cell (B16F10) --- plasma cancer therapy --- cold atmospheric plasma (CAP) --- transferred cold atmospheric plasma --- reactive oxygen species (ROS) --- reactive nitrogen species (RNS) --- catalase --- microwave plasma --- dual-frequency plasma --- electron temperature --- electron density --- n/a

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The essential introduction to magnetic reconnection—written by a leading pioneer of the fieldPlasmas comprise more than 99 percent of the visible universe; and, wherever plasmas are, magnetic reconnection occurs. In this common and yet incompletely understood physical process, oppositely directed magnetic fields in a plasma meet, break, and then reconnect, converting the huge amounts of energy stored in magnetic fields into kinetic and thermal energy. In Magnetic Reconnection, Masaaki Yamada offers an illuminating synthesis of modern research and advances on this important topic. Magnetic reconnection produces such phenomena as solar flares and the northern lights, and occurs in nuclear fusion devices. A better understanding of this crucial cosmic activity is essential to comprehending the universe and varied technological applications, such as satellite communications. Most of our knowledge of magnetic reconnection comes from theoretical and computational models and laboratory experiments, but space missions launched in recent years have added up-close observation and measurements to researchers’ tools. Describing the fundamental physics of magnetic reconnection, Yamada connects the theory with the latest results from laboratory experiments and space-based observations, including the Magnetic Reconnection Experiment (MRX) and the Magnetospheric Multiscale (MMS) Mission. He concludes by considering outstanding problems and laying out a road map for future research.Aimed at advanced graduate students and researchers in plasma astrophysics, solar physics, and space physics, Magnetic Reconnection provides cutting-edge information vital area of scientific investigation.

Magnetic reconnection. --- SCIENCE / Physics / Magnetism. --- Acceleration. --- Accretion disk. --- Ampere. --- Annihilation. --- Astrophysical plasma. --- Astrophysics. --- Bremsstrahlung. --- Collision frequency. --- Collisionality. --- Coronal loop. --- Coronal mass ejection. --- Coulomb collision. --- Current density. --- Current sheet. --- Cyclotron. --- Debye length. --- Diffusion layer. --- Dissipation. --- Drift velocity. --- Dynamo theory. --- Electric field. --- Electrical resistivity and conductivity. --- Electron temperature. --- Electrostatics. --- Energy transformation. --- Experimental physics. --- Fermi acceleration. --- Feynman diagram. --- Field effect (semiconductor). --- Field line. --- Fine structure. --- Flux tube. --- Fusion power. --- Gauge theory. --- Gyroradius. --- Hall effect. --- Inductance. --- Induction equation. --- Instability. --- Interferometry. --- Ion acoustic wave. --- Ionization. --- Kinetic theory of gases. --- Kink instability. --- Landau damping. --- Langmuir probe. --- Length scale. --- Lorentz force. --- Madison Symmetric Torus. --- Magnetar. --- Magnetic confinement fusion. --- Magnetic diffusivity. --- Magnetic dipole. --- Magnetic energy. --- Magnetic field. --- Magnetic flux. --- Magnetic helicity. --- Magnetization. --- Magnetohydrodynamics. --- Magnetopause. --- Magnetosheath. --- Magnetosonic wave. --- Magnetosphere. --- Maxwell–Boltzmann distribution. --- Mean free path. --- Momentum transfer. --- Neutral beam injection. --- Nonlinear optics. --- Nuclear fusion. --- Paramagnetism. --- Particle physics. --- Pitch angle (particle motion). --- Plasma (physics). --- Plasma acceleration. --- Plasma oscillation. --- Plasma parameter. --- Plasma parameters. --- Plasma stability. --- Plasmoid. --- Quadrupole. --- Relativistic plasma. --- Reversed field pinch. --- Safety factor (plasma physics). --- Scattering. --- Skin effect. --- Solar flare. --- Spacecraft. --- Spatial scale. --- Spheromak. --- Stark effect. --- Substorm. --- Synchrotron radiation. --- Thermodynamic equilibrium. --- Thomson scattering. --- Tokamak. --- Two-dimensional space. --- Van Allen radiation belt. --- Weibel instability. --- X-ray. --- Annihilation, Magnetic field --- Magnetic field annihilation --- Magnetic field line merging --- Merging, Magnetic field line --- Reconnection, Magnetic --- Reconnection (Astronomy) --- Astrophysics --- Geophysics --- Magnetic fields