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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 10 of 764 (0.089 seconds)Spelling suggestions: "subject:"lowtemperature"" "subject:"lowertemperature""
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Low temperature spectroscopy of some transition metal compounds; the determination and interpretation of the optical spectrum of chromium (III) tris-acetylacetonateWork, Ray Vallee, 1936- January 1961 (has links)
No description available.
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| 2 |
Non linear damping by ballistic quasiparticles in superfluid '3HE-#beta#Carney, John Paul January 1989 (has links)
No description available.
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| 3 |
Experiments on a dilute '3He-'4He solution in a large magnetic field gradientJackson, Douglas Anthony January 1993 (has links)
No description available.
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| 4 |
The de Haas-van Alphen effect and the superconducting stateHaworth, Christopher January 1995 (has links)
No description available.
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| 5 |
An experimental investigation into the electrical transport properties of Laâ†2CuOâ†4â†+â†#delta# and Ndâ†2CuOâ†4â†+â†#delta#Ryder, J. January 1990 (has links)
No description available.
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| 6 |
The assessment of the photo response efficiency of the silver halide component in a photo-thermographic materialSale, Martin William Briddon January 1998 (has links)
No description available.
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| 7 |
Use of '1'9F NMR thermometry in the investigation of magnetic textures in superfluid '3He-AMossavati, Ruzbeh January 1988 (has links)
No description available.
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| 8 |
Properties of '3He-'4He mixturesChurch, Rosemary Jane January 1989 (has links)
No description available.
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| 9 |
A PrNiâ†5 refrigerator developed for nuclear orientation below 1mKWhite, Jeremy Philip January 1991 (has links)
No description available.
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| 10 |
Non-equilibrium phenomena in grapheneHornett, Samuel Martyn January 2013 (has links)
Graphene has displayed much promise as an electrical conductor and as a optical material. To date there is a large body of literature dedicated to the equilibrium properties of graphene. In this thesis the properties of graphene out of equilibrium are probed. Through combined optical and transport measurements the behaviour of hot electrons are probed at temperatures over five orders of magnitude from 50mK to 2000K. This wide range of temperatures allows access to the behaviour of quantum corrections at the lowest temperatures to the highest energy phonon modes. From ultrafast femtosecond laser pulses to steady state heating from an electric field the cooling of hot electron populations through coupling to various phonon modes in the graphene and the substrate are explored. Additionally the effect of an electric field on the weak localisation correction to the conductivity was separated from heating effects using applied magnetic fields combined with careful modelling of the heat transport properties of the graphene. Finally the desorption dynamics of oxygen bound to the surface are shown using a combination of transport and two pulse correlation technique using an ultrafast laser. Surprisingly the cooling of hot carriers in graphene at low energies shows substrate surface phonons as an important cooling mechanism, highlighting the importance of substrate choice in future graphene devices. In contrast at the very highest energy scales accessed only by photoexcitation the cooling is shown not to be influenced by the presence of a substrate, but out-of-plane phonon modes increase cooling of the hot optical phonons.
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